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Investigation of electroluminophores for their practical application in optical fibre sensor technology

100%

Pustelny T. , Pustelny B.

Opto-Electronics Review

2002

tom Vol. 10, No. 3

193-198

In this paper, the results of the experimental investigation of electroluminescent phenomena are presented. The electroluminescent effect is observed in some composite semiconductors, among others - ZnS, doped by Mn and Cu. The concentrations of impurities in good guality electrophosphores are higher than in photoluminophores and they are within the range of 10⁻⁴ - 10⁻³ g/g. The worked out electroluminophors were tested in the electric field of sinusoidally changeable intensity. The influence of electric field both on spectral characteristics and electroluminescence intensity was examined. The final aim of the tests is elaboration of electric intensity sensors which will be applied in monitoring of operation of electromagnetic power arrangements in the future.

Optic Fiber Electric Field Intensity Sensor

100%

Pustelny T. , Pustelny B.

2000

tom Vol. 21

201-206

In this paper the results of the experimental investigation of fiber optic electric fieId intensity sensors are presented. These sensors are based on electroluminescent effect which consists in the light emission by some substances placed in variable electric field. The luminescent effect is observed in some composite semiconductors, among other - ZnS, doped by Mn, for high its concentration, order 10 -4 -- 10 -3 g/g. The final aim of this investigation will be the elaborafion ofan electric intensity sensor, which together fiber optic temperaturę sensors and intensive of magnetic field sensors make possible, in the future, to monitor the state ofwork of electromagnetic power arrangements, first ofall - high voltage power transformers.

Photoacoustic Investigations of Atmospheric Gases

80%

Pustelny B. , Kleszczewski Z. , Bukowski R.

2001

tom Vol. 22

197-202

In the paper the idea of testing of athmospheric air by photoacoustic method i presented. The base of photoacoustic effect theory in gas is presented. The paper concerns also preliminary results of photoacoustic experimental investigation, too.

Atmospheric Pollutants Investigation by Photoacoustic Methods

80%

Bukowski J. , Kleszczewski Z. , Pustelny B.

2000

tom Vol. 21

49-60

Impressing technology of optical Bragg's gratings on planar optical sol-gel waveguides

70%

Pustelny T. , Zielonka I. , Tyszkiewicz C. , Karasiński P. , Pustelny B.

tom Vol. 14, No. 2

161-166

The aim of the presented investigations was to develop a technique of producing Bragg's grating couplers on planar waveguides. Waveguides are obtained by means of the sol-gel technology. The introduction of a light beam into the structure of the waveguide is in the case of planar or strip optical systems always an essential technical problem, requiring simple and reproducible solutions without extending excessively the waveguide structure. The paper presents a technology of producing grating couplers by impressing the pattern of the network while forming the planar waveguide structure applying the sol-gel method. Some remarks concerning the sol-gel technology are also presented. The results of investigations on grating couplers obtained in such a way have been discussed, too. Attention has been drawn to the possibility of using such structures in optoelectronic sensors, particularly gas sensors, including sensors of water vapour as well as toxic gases.

Optic Fiber Electric Field Sensors

70%

Pustelny T. , Pustelny B. , Kamizela G. , Borysewicz E. , Pustelny S.

1999

tom Vol. 20

195-202

The possibility of the electroluminescent semiconductors of the II-VI group for the construction of the electric fieid intensity sensors arę presented. Using ZnS:Mn and ZnS:Cu luminophors, the fiber optic intensity of electric field sensors were elaborated. This kind of electric field sensors belong to the group of intensity fiber optic sensors. Luminescent optic fiber electric field sensors will be tested to applied in control systems of high voltage transformers, in the future.