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1

Analysis of nonlinear parity-time symmetric four-layer Bragg grating

Witoński Piotr, Mossakowska-Wyszyńska Agnieszka

Optica Applicata

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2022

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Vol. 52, nr 3

329--344

EN

The one dimensional PT (parity time) symmetric four-layer Bragg grating with gain and loss saturation effects is analyzed taking into account the evolution of the field amplitudes. The investigated structure has modulated real and imaginary parts of refractive index. The functional configurations of the Bragg grating have been considered, showing the behavior of this structure acting as a discrete device and as a component of an integrated circuit. The obtained characteristics illustrate the influence of the saturation effect on the intensity of the output wave at a given intensity of the incident plane wave for different values of gain and loss saturation intensities of the PT structure. The performed analysis shows the bistability of the structure and a strong influence of the incident wave intensity on the properties of light propagation nonreciprocity.

2

Operation of Fabry-Perot laser with nonlinear PT-symmetric mirror

Mossakowska-Wyszyńska Agnieszka, Witoński Piotr, Szczepański Paweł

Bulletin of the Polish Academy of Sciences. Technical Sciences

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2021

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Vol. 69, nr 6

art. no. e139202

EN

The above-threshold operation of a Fabry-Perot laser with a nonlinear PT (parity time) mirror is investigated. For the first time, the analysis accounts for gain saturation of an active medium as well as gain and loss saturation effects in the PT mirror. The obtained laser output intensity characteristics have been demonstrated as a function of various PT mirror parameters such as: the ratio of the PT structure period to laser operating wavelength, number of PT mirror primitive cells, and gain and loss saturation intensities of the PT mirror gain and loss layers. Two functional configurations of the laser have been considered: laser operating as a discrete device, and as a component of an integrated circuit. It has been shown that, in general, the laser operation depends on the PT mirror orientation with respect to the active medium of the laser. Moreover, when the laser radiation is outcoupled through the PT mirror to the free space, bistable operation is possible, when losses of the mirror’s loss layer saturate faster than gain of the gain layer. Furthermore, for a given saturation intensity of the mirror loss layers, the increase of the saturation intensity of the mirror gain layers causes increasing output intensity, i.e., the PT mirror additionally amplifies the laser output signal.

3

Modyfikacja metody proszkowej pomiaru wybranych właściwości materiałów nieliniowooptycznych

Maciąg Artur

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

|

2019

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Nr 66

41--44

PL

Metoda proszkowa Kurtza służąca do pomiarów parametrów nieliniowooptycznych wymaga uwzględniania nierównomiernego rozkładu natężenia światła rozproszonego przez badaną próbkę. Rozwiązanie tego problemu zaproponowane przez twórców tej metody polegało na rejestracji całego światła drugiej harmonicznej emitowanego przez badaną próbkę za pomocą komór odbiciowych. Przygotowanie odpowiedniej aparatury dla tego celu stanowi problem techniczny. Proponowana modyfikacja zakłada, że pomiar obu składowych harmonicznych światła będzie odbywał się w tym samym punkcie przestrzeni, przez co stosunek zarejestrowanych składowych harmonicznych pozostanie stały. W artykule opisano model i pomiary rozkładu natężenia obu harmonicznych światła wokół próbki. Badania te mają szczególne znaczenie w kwestii określenia odtwarzalności pomiarów wykonanych zmodyfikowaną metodą.

EN

The Kurtz powder method is used in the screening test for new nonlinear optical samples. The powder method does not include uneven distribution of the intensity of light distracted by the sample. The original powder method requires registration of all generated second harmonic light by probe. Making such measuring apparatus is complicated. A modification of the powder method has been proposed. The measuring set-up of the modified powder method is easier to manufacture. The modification assumes that the fundamental harmonics (FUN) and the second harmonics (SHG) will be measured at one point. For such a measurement the ratio of FUN and SHG at any point will be the same. The article describes the adopted model of light distracted by a powder sample and the results of measurements of the light intensity distribution around the reference sample. Most studies confirm the correctness of the adopted model of light distracted by a powder sample. These tests are important for the reproducibility of measurements made with the modified powder method.

4

Numerical investigation of a broadband coherent supercontinuum generation in Ga₈Sb₃₂S₆₆ chalcogenide photonic crystal fiber with all-normal dispersion

Medjouri Abdelkader, Abed Djamel, Becer Zoubir

Opto-Electronics Review

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2019

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Vol. 27, No. 1

1--9

EN

All normal dispersion (ANDi) and highly nonlinear chalcogenide glass photonic crystal fiber (PCF) is proposed and numerically investigated for a broad, coherent and ultra-flat mid-infrared supercontinuum generation. The proposed PCF consists of a solid core made of Ga₈Sb₃₂S₆₆ glass surrounded by seven rings of air holes arranged in a triangular lattice. We show by employing the finite difference frequency domain (FDFD) method that the Ga₈Sb₃₂S₆₆ PCF dispersion properties can be engineered by carefully adjusting the air holes diameter in the cladding region and ANDi regime is achieved over the entire range of wavelengths with a zero chromatic dispersion around 4.5 μm. Moreover, we demonstrate that injecting 50 fs width and 20 kW peak power laser pulses (corresponding to a pulse energy of 1.06 nJ) at a pump wavelength of 4.5 μm into a 1 cm long ANDi Ga₈Sb₃₂S₆₆ PCF generates a broad, flat-top and perfectly coherent SC spectrum extending from 1.65 μm to 9.24 μm at the 20 dB spectral flatness. These results make the proposed Ga₈Sb₃₂S₆₆ PCF an excellent candidate for various important mid-infrared region applications including mid-infrared spectroscopy, medical imaging, optical coherence tomography and materials characterization.

5

Growth, electrical, thermal, mechanical and etching studies on 4-chloroanilinium hydrogen (2R, 3R)-tartrate monohydrate-an organic NLO single crystal

Sivakumar R., Nadaraj V.

Materials Science Poland

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2019

|

Vol. 37, No. 3

310--316

EN

An organic single crystal of 4-chloroanilinium hydrogen (2R,3R)-tartrate monohydrate (4CAHT) was grown by slow evaporation solution growth technique at room temperature. Single crystal XRD study confirmed that the crystal belongs to monoclinic system with the space group P21. Powder XRD analysis confirmed the crystalline nature of the compound. The presence of various functional groups in the compound was revealed by FT-IR analysis. UV studies showed the absence of absorption in the entire visible region. To determine the thermal stability of the grown crystals it was subjected to thermogravimetric and differential thermal analyses. Microhardness and etching studies were also carried out for the crystal. The powder second harmonic generation efficiency of 4CAHT was tested by Kurtz and Perry powder technique and the relative SHG efficiency of 4CAHT was found to be 1.44 times greater than that of standard KDP.

6

Optimization of microstructured fibers with germanium-doped core for broad normal dispersion range

Biedrzycki J., Tarnowski K., Urbańczyk W.

Opto-Electronics Review

|

2018

|

Vol. 26, No. 1

57--62

EN

We have numerically studied different designs of technologically feasible microstructured fibers with a germanium-doped core in order to obtain normal dispersion reaching possibly far in the mid infrared. Hexagonal, Kagome and the combination of both geometries were numerically examined with respect to different constructional parameters like pitch distance, filling factor of air holes, number of layers surrounding the core, and level of germanium doping in the core. Our analysis showed that the broadest range of normal dispersion reaching 2.81 μm, while keeping an effective mode area smaller than 30 μm², was achieved for a hexagonal lattice and a 40 mol% GeO₂ doped core. The proposed fibers designs can be used in generation of a normal dispersion supercontinuum reaching the mid-IR region.

7

Defect solitons supported by kagome photonic lattices in biased photovoltaic-photorefractive crystals

Hui J., Lu K., Zhao C., Gao L., Chen W.

Optica Applicata

|

2018

|

Vol. 48, nr 3

349--359

EN

We report that defect solitons can be supported by kagome photonic lattices with a defect in biased photovoltaic-photorefractive crystals. For a positive defect, these defect solitons exist only in the semi-infinite bandgap and are stable in the low power region but unstable in the high power region. For a negative defect, these defect solitons exist in both of the semi-infinite bandgaps and the first bandgap. In the semi-infinite bandgap, low-power defect solitons are stable when the negative defect depth is low and unstable when the negative defect depth is high, moderate-power defect solitons are stable when the negative defect depth is high, and high-power defect solitons are unstable for all the negative defect depths. In the first bandgap, defect solitons are stable in all the power regions when the negative defect depth is low. When the negative defect depth is high, defect solitons are stable in the high power region and unstable in the low power region. On the other hand, these defect solitons are those studied previously in kagome photonic lattices with a defect in biased non-photovoltaic-photorefractive crystals when the bulk photovoltaic effect is negligible and those in kagome photonic lattices with a defect in photovoltaic-photorefractive crystals when the external bias field is absent.

8

Synthesis and investigation of nonlinear optical properties of Para Red: Z-scan technique end quantum mechanical calculations

Mostaghni F., Abed Y.

Materials Science Poland

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2018

|

Vol. 36, No. 3

445--451

EN

In this study, we present a systematic study of linear and nonlinear optical properties of Para Red with the aim of Z-scan technique and quantum mechanical calculations. The Z-scan experiments were performed using a 532 nm Nd: YAG (SHG) CW laser beam. Para Red exhibited a strong nonlinear refractive index, nonlinear absorption coefficient and third-order nonlinear susceptibility 3.487 × 10-6 cm2/W, 2.341 × 10-1 cm/W and 2.157 × 10-4 esu, respectively. Also, quantum chemical analysis was used for the calculation of the dipole moment µ, dipole polarizability α, anisotropy of polarizability Δα and molecular hyperpolarizabilities (β, γ). The results revealed that Para Red has large first and second hyperpolarizabilities. However, from the obtained results, it was found that Para Red can be a promising material for applications in the development of non-linear optical materials.

9

Pomiar sprawności przetwarzania drugiej harmonicznej światła uwzględniający odbite sygnały pomiarowe

Maciąg A.

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

|

2017

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Nr 54

149--152

PL

Pomiary sprawności generacji drugiej harmonicznej światła dla próbek materiałów nieliniowooptycznych odnoszą się głównie do kryształu jako obiektu makroskopowego. Nowootrzymywane związki chemiczne nie zawsze stwarzają możliwość wyhodowania jednolitych i wystarczająco dużych kryształów. Niniejsze opracowanie opisuje propozycję nowego sposobu pomiaru sprawności generacji drugiej harmonicznej światła dla nietransparentnych próbek proszkowych. Podstawową różnicę względem powszechnie stosowanych metod pomiaru jest umieszczenie detektora pierwszej i drugiej harmonicznej w obszarze strumienia światła odbitego od badanej próbki materiału. Zarejestrowane w proponowany sposób sygnały mimo iż mają mniejszą amplitudę względem typowej metody, są mniej zniekształcone i zakłócone przez czynniki zewnętrzne.

EN

Measurements efficiency of second harmonic generation of light for samples of nonlinear optical crystals mainly refer to the crystal as a macroscopic object. Newlyformed chemicals probes do not always provide the opportunity to grow uniform and large enough crystals. This article describes the proposed new method for measuring the efficiency of second harmonic light generation for nontranslucent powder samples. The primary difference with respect to commonly used measurement methods is the placement of the first and second harmonic detectors in the area of the reflected light stream from the test sample material. Comparative test measurements of both methods were performed for the same sample crystal BiB3O6 (BIBO). Measurement conditions beyond the position of the detectors remain unchanged. Comparing both pulse waveforms, you may notice a decrease in amplitude of FUN and SHG signals. Despite the reduced amplitude of the recorded signals, a noticeable improvement in the shape of the two pulses can be noted. The measuring system shall be subjected to a onetime series of measurements with a reference sample to determine the fixed conversion rate of the second harmonic of the light.

10

Supercontinuum fiber laser source for water quality and heavy metals detection

Teh P. C., Ho Y. H., Ong C. E., Lee S. C., Lo P. K., Lai K. C., Yeap K. H., Loh S. H., Teh P. S., Tey K. L.

Optica Applicata

|

2017

|

Vol. 47, nr 3

445--456

EN

We report a compact, all fiber, 150 ps fiber master oscillator power amplifier operating at 1064 nm that has the ability of producing a maximum average output power of 2.16 W with peak power as high as 10 kW. The output from the master oscillator power amplifier is spliced with a highly nonlinear photonic crystal fiber, generating a supercontinuum with an average power of 250 mW at repetition rate of 1 MHz and spectrum bandwidth spanning from 600 to 1700 nm. The developed supercontinuum system is used to detect the presence of heavy metal contaminants in water by a simple light transmittance method to ensure that the water is free from heavy metal contaminants and safe for consumption. The supercontinuum laser source was shone onto a water sample with a detector placed at another end in order to measure the transmitted supercontinuum light. By measuring the amount of light attenuated at particular wavelength, the concentration of heavy metal contaminants present in the water sample could be determined.

11

Optimized geometry, vibration (IR and Raman) spectra and nonlinear optical activity of p-nitroanilinium perchlorate molecule: A theoretical study

Tamer O., Atalay A. S., Avci D., Atalay Y., Tarcan E., Marchewka M. K.

Materials Science Poland

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2016

|

Vol. 34, No. 1

192--203

EN

The molecular modeling of p-nitroanilinium perchlorate molecule was carried out by using B3LYP and HSEH1PBE levels of density functional theory (DFT). The IR and Raman spectra were simulated and the assignments of vibrational modes were performed on the basis of relative contribution of various internal co-ordinates. NBO analysis was performed to demonstrate charge transfer, conjugative interactions and the formation of intramolecular hydrogen bonding interactions within PNAPC. Obtained large dipole moment values showed that PNAPC is a highly polarizable complex, and the charge transfer occurs within PNAPC. Hydrogen bonding and charge transfer interactions were also displayed by small HOMO-LUMO gap and molecular electrostatic potential (MEP) surface. The strong evidences that the material can be used as an efficient nonlinear optical (NLO) material of PNAPC were demonstrated by considerable polarizability and hyperpolarizability values obtained at DFT levels.

12

Nowe zasady pomiaru drugiej harmonicznej światła (SHG) w materiałach o zróżnicowanej wartości podatności nieliniowooptycznej

Wojciechowski A.

Elektronika : konstrukcje, technologie, zastosowania

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2016

|

Vol. 57, nr 11

71--74

PL

Opracowano nowe podejście do pomiaru zjawiska drugiej harmonicznej światła (SHG) polegające na rejestracji kinetyki czasowego opóźnienia maksimum przebiegu sygnału SHG względem maksimum sygnału fali fundamentalnej (FUN) oraz pomiar kinetyki SHG. Z analizy literaturowej wynika, że dotychczas najczęściej prowadzono pomiar efektywności przetwarzania SHG jako stosunek maksimum natężenia SHG do maksimum fali padającej. Nowe podejście dostarcza dodatkowych informacji o kinetyce obsadzenia poziomów pułapkowych w obszarach częściowo nieuporządkowanych badanych materiałów, które generują dodatkowy sygnał SHG. Istotnym jest to ze metoda ta może być stosowana do materiałów posiadających duży (do 5 rzędów) rozrzut efektywności SHG. Ustalono podstawowe parametry techniczne wpływające na efektywność drugiej harmonicznej światła. Ustalono że przy tej samej gęstości mocy promieniowania istnieje prawie odwrotnie proporcjonalna relacja pomiędzy czasem opóźnienia i efektywnością drugiej harmonicznej. Oprócz tego zbadano wpływ innych czynników na dokładność pomiarów. Podstawy teoretyczne są oparte na analizie hiperpolaryzowalności wielu materiałów. Wśród nich nanokompozyty, monokryształy, nanoproszki i inne.

EN

We developed a new approach to measuring the phenomenon of second harmonic of the light (SHG) involving the registration of the kinetics of the time delay of the maximum waveform SHG terms of maximum wave signal fundamental (FUN) and the measurement of the kinetics of SHG. The analysis of the literature shows that until now the mostly introduced measurement processing efficiency as the ratio of the maximum of SHG to the maximum of the incident wave. The new approach provides additional information about the kinetics of filling of the traps levels in areas partially disordered for the tested materials, which generate additional SHG signal. It is important that this method can be used for materials with large (up to 5 rows) dispersion of SHG efficiency. It was found that for the same power density of the radiation are inversely proportional relationship between the delay time and efficiency of the second harmonic. In addition, were examined the effect of other factors on the accuracy of the measurements. Theoretical foundations are based on the analysis of hyperpolarizabilities of many materials. Among these nanocomposites, single crystals, nanopowders and other.

13

Wybrane optyczne zjawiska nieliniowe w mikrostrukturach fotonicznych i ośrodkach magnetooptycznych

Rutkowska K. A.

Prace Naukowe Politechniki Warszawskiej. Fizyka

|

2015

|

z. 58

3--181

PL

W pracy przedstawiono opis wybranych zjawisk nieliniowych drugiego i trzeciego rzędu, w których wykorzystywana jest zarówno specyfika struktur falowodowych wykonanych z różnych materiałów, jak również indukowana zewnętrznym polem magnetycznym dwójłomność optyczna pozwalająca na uzyskanie quasi-stacjonarnych rozwiązań w objętościowym ośrodku kerrowskim. Niniejsze opracowanie zawiera opis teoretyczny rozpatrywanych zagadnień, a także wyniki badań eksperymentalnych. Przeanalizowane w pracy procesy i zjawiska typowe dla optyki nieliniowej, takie jak przykładowo generacja drugiej harmonicznej, samoogniskowanie światła, czy generacja solitonów przestrzennych w ośrodkach kerrowskich, zostały opisane na podstawie oryginalnych badań własnych autorki. Wskazuje ona przy tym, że odmienne mechanizmy nieliniowości występujące w różnych badanych przez nią ośrodkach materialnych wpływają na przebieg analizowanych zjawisk nieliniowych i umożliwiają ich potencjalne zastosowania przy praktycznym konstruowaniu układów i urządzeń fotonicznych. W monografii opisane zostały zarówno różnorodne metody analityczne i numeryczne stosowane przy analizie zagadnień związanych z propagacją światła i projektowaniu struktur fotonicznych, jak również metody pomiarowe i techniki eksperymentalne stosowane przy charakteryzacji i optymalizacji struktur i układów optycznych wykorzystywanych w optyce nieliniowej.

EN

In this work selected second- and third-order optical nonlinear phenomena are described, in which unique properties of waveguiding structures made of various materials as well as magnetically induced optical birefringence allowing for quasi-stationary solutions in bulk Kerr-type media are utilized. Presented studies include both theoretical description of the analyzed subjects, as well as experimental results. Based on original research achievements of the author, selected nonlinear optical processes and phenomena, such as, for example, second harmonic generation, self-focusing and spatial solitons generation in Kerr-type media are considered. It is indicated that different mechanisms of nonlinearity occurring in various materials under investigations influence nonlinear processes and thus allow for potential application of prospective photonic devices and systems. This treatise describes various analytical an numerical methods used for analyses of light propagation in selected photonic structures as well as measurement methods and experimental techniques applied for characterization and optimization of the proposed structures and systems to be used in nonlinear optics.

14

Polarity-reversed ultra-wideband monocycle pulse generation with dual-channel multicasting in a photonic crystal fiber

Gong J, Hui Z

Optica Applicata

|

2015

|

Vol. 45, nr 1

25--39

EN

This paper proposes and demonstrates a novel scheme of a two-channel-output ultra-wideband monocycle pulse generator consisting of a 100 m dispersion-flattened highly nonlinear photonic crystal fiber and two optical bandpass filters. Based on the cross-phase modulation effect in a dispersion-flattened highly nonlinear photonic crystal fiber, two polarity-reversed ultra-wideband monocycle pulses simultaneously output from two different channels are successfully achieved by appropriately locating the probe wavelength at the left linear slope and the right linear slope of the two optical bandpass filters transmission spectra, respectively. The full width at half-maximum and a fractional bandwidth of 24 ps and 260% for a positive pulse, 24 ps and 251% for a negative pulse are obtained. Moreover, the influences of input signal powers, the polarization misalignment between the data light and the continuous wave probe light, and probe wavelength variation on the double output ultra-wideband signals quality are also investigated. The results show that the system has some tolerance to both the input signal power fluctuation and the slight polarization mismatch and even can efficiently operate with a widely tunable wavelength range. This makes it very attractive for engineering applications in future multiuser ultra-wideband-over-fiber communication systems.

15

Studies on Inx(As2Se3)1-x thin films using variable angle spectroscopic ellipsometry (VASE)

Amin G. A. M.

Materials Science Poland

|

2015

|

Vol. 33, No. 3

501--507

EN

The results of multi-angle ellipsometrical measurements of thermally evaporated In_x(AsSe₃)_1-x (x = 0, 0.01, 0.05) films are presented. Optical parameters n and Eg of thin In_x(AsSe₃)_1-x films show that indium atoms were incorporated into the host matrix of AsSe₃ forming distinct features depending on the indium concentration. Refractive index, n, was found to decrease with the addition of In to the binaryAsSe₃. The real and imaginary parts of the dielectric function, ε' and ε" were also calculated from the obtained data and correlated with In concentration. It was found that ε' decreases with the increaseof In content while ε" increases with the increase of In content. Absorption edge is shifted towards lower photon energy with the increase of In content. As a result, the optical energy gap decreases with increasing In content. This has been correlated with the chemical character of the additive as well as with the structural and bonding aspects of the amorphous composition. Nonlinear optical constants (Χ⁽³⁾ and n₂) were determined from linear optical parameters using semi-empirical relations in the long wavelength limit.

16

Size-dependence of the effective electron-phonon energy relaxation in hollow gold nanospheres

Fan Y., Li J., Chen H., Lu X., Liu X.

Opto-Electronics Review

|

2014

|

Vol. 22, No. 1

36-40

EN

In this paper the size-dependence of energy relaxation, which is induced by the electron-phonon (e-ph) interactions and the electron-surface (e-s) interactions in noble metal nanoparticles, is investigated. Then based on the analysis and the derivation of the e-s coupling constant in metal nanospheres, the formula of the effective electron-phonon coupling constant Geff of hollow gold nanospheres (HGNs) is deduced. Moreover, the correctness of the formulae gets proved by contrast analyses of the calculated Geff values and experimental values obtained from literature.

17

Nonlinear-optical refraction of silver nanoparticle composites

Gamernyk R, Periv M, Malynych S

Optica Applicata

|

2014

|

Vol. 44, nr 3

389--398

EN

In this paper, the experimental data on nonlinear refraction of silver nanoparticle composites using a standard Z-scan technique are presented. It was found that the colloids of silver nanoparticles of various size possess a defocusing ability. Based on general considerations, one can conclude thermal lens nature of the nonlinear refraction of the colloids. Significantly different magnitudes of the nonlinear refractive index of silver nanoparticles suspended in water and in glycerol can be explained by differences in the specific heat capacity of mentioned fluids. The effective thickness for nonlinear-optical interaction of light with a two-dimensional silver nanoparticle array was estimated.

18

Stack and draw fabrication of soft glass microstructured fiber optics

Pysz D., Kujawa I., Stępień R., Klimczak M., Filipkowski A., Franczyk M., Kociszewski L., Buźniak J., Haraśny K., Buczyński R.

Bulletin of the Polish Academy of Sciences. Technical Sciences

|

2014

|

Vol. 62, nr 4

667--682

EN

A broad review is given of microstructured fiber optics components - light guides, image guides, multicapillary arrays, and photonic crystal fibers - fabricated using the stack-and-draw method from various in-house synthesized oxide soft glasses at the Glass Department of the Institute of Electronic Materials Technology (ITME). The discussion covers fundamental aspects of stack-and-draw technology used at ITME, through design methods, soft glass material issues and parameters, to demonstration of representative examples of fabricated structures and an experimental characterization of their optical properties and results obtained in typical applications. Specifically, demonstrators include microstructured image guides providing resolution of up to 16000 pixels sized up to 20 μm in diameter, and various photonic crystal fibers (PCFs): index-guiding regular lattice air-hole PCFs, hollow core photonic bandgap PCFs, or specialty PCFs like highly birefringent microstructured fibers or highly nonlinear fibers for supercontinuum generation. The presented content is put into context of previous work in the area reported by the group of authors, as well as other research team.

19

Engineering the optical and mechanical properties exhibited by a titanium dioxide thin film with gold nanoparticles

Morales-Bonilla S, Torres-Torres C, Trejo-Valdez M, Torres-Torres D, Urriolagoitia-Sosa G, Hernandez-Gomez L H, Urriolagoitia-Calderon G

Optica Applicata

|

2013

|

Vol. 43, nr 4

651--661

EN

Thermo-optic and electrostrictive contributions to the nonlinear refractive index were observed in a titanium dioxide thin film with embedded gold nanoparticles. A sol–gel method was employed for preparing thin solid film samples. The nanosecond nonlinear optical properties and the Young’s modulus parameter were changed by shifting the optical absorption band associated with the localized surface plasmon of resonance of the gold nanoparticles with platinum. The third order nonlinear optical phenomena exhibited by the sample were induced by the second harmonic of a Nd-YAG laser with 532 nm wavelength; the nonlinear optical measurements were obtained by monitoring the transmittance and the amplitude modification for the vectorial components of the electric fields in a two-wave interaction. Optical evaluations were confirmed considering a straightforward measurement of the change in the refractive index of the sample when the sample was located in a Michelson interferometer.

20

Rozwój nauk optycznych w kraju

Romaniuk R. S.

Elektronika : konstrukcje, technologie, zastosowania

|

2013

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Vol. 54, nr 8

93-98

PL

Środowisko naukowe i techniczne optyki, fotoniki i optoelektroniki jest zgrupowane w kraju w kilku organizacjach. Są to Polskie Stowarzyszenie Fotoniczne (PSP), Polski Komitet Optoelektroniki SEP, Sekcja Fotoniki KEiT PAN, Klub Laserowy na WAT oraz Sekcja Optyki PTF. Każde z tych środowisk posiada nieco odmienną specyfikę. PSP wydaje kwartalnik Photonics Letters of Poland, stymuluje współpracę międzynarodową i organizuje konferencje w czasie targów przemysłowych fotoniki. PKOpto organizuje dyplomowe konkursy dydaktyczne z dziedziny fotoniki. KEiT PAN patronuje krajowym konferencjom dziedziny techniki laserowej, światłowodów oraz zastosowaniom fotoniki. SO-PTF podjęła się ostatnio organizacji cyklicznej „Polskiej Konferencji Optycznej". Trzecia edycja tej konferencji PKO'2013 odbyła się w Sandomierzu w dniach 30 czerwca – 4 lipca br. Konferencja obejmuje następującą tematykę naukową i techniczną: optyka kwantowa i nieliniowa; fizyka, optyka i technologia laserów oraz innych źródeł promieniowania spójnego; optoelektronika; optyczne układy zintegrowane, optyka światłowodowa; optyka medyczna; optyka instrumentalna; spektroskopia optyczna; metrologia optyczna; nowe materiały optyczne; zastosowania optyki, oraz dydaktyka optyki. W artykule dokonano przeglądu wybranych prac konferencji PKO'2013, reprezentujących różne naukowe optyczne ośrodki krajowe.

EN

Research and technical communities for optics, photonics and optoelectronics is grouped in this country in several organizations and institutions. These are: Photonics Society of Poland (PSP), Polish Committee of Optoelectronics of SEP, Photonics Section of KEiT PAN, Laser Club at WAT and Optics Section of PTF. Each of these communities keeps slightly different specificity. PSP publishes a quarterly Journal Photonics Letters of Poland, stimulates international cooperation and organizes conferences during Industrial Fairs on Innovativeness. PKOpto SEP organizes didactic diploma competitions in optoelectronics. KEiT PAN takes patronage over national conferences in laser technology, optical fiber technology and photonics applications. SO-PTF has recently taken a decision to organize a cyclic event "Polish Optical Conference". The third edition of this conference PKO'2013 was held in Sandomierz on 30.06-04.07.2013. The conference scientific and technical topics include: quantum and nonlinear optics, photon physics, optic and technology of lasers and other sources of coherent radiation, optoelectronics, optical integrated circuits, optical fibers, medical optics, instrumental optics, optical spectroscopy, optical metrology, new optical materials, applications of optics, teaching in optics. This paper reviews chosen works presented during the III Polish Optical Conference, representing the research efforts at different national institutions.