Beam switching at a nonlinear-linear interface

• Autorzy: Nasalski, W.
• Języki publikacji: EN

Abstrakty

EN

Reflection of a beam incident front a nonlinear Kerr medium at a nonlinear-linear dielectric interface is analysed for incidence close to the critical angle of total internal reflection. The problem is formulated and solved within the frame of a reduced variational technique. The solution obtained is interpreted in terms of aberrationless effects of nonlinear propagation and nonspecular effects of nonlinear reflection. A bistable switch in the reflected beam power, waist position and diameter, as well as in the beam ais direction, is demonstrated. A position of a bistable loop indicates that the nature of the switch is qualitatively different from that predicted by the plane wave analysis. It is shown that these differences result from self-focusing of the incident and reflected beams, their mutual cross-phase modulation and large nonspecular deformations of the reflected beam.

Słowa kluczowe

PL

dielektryk nieliniowy; nieliniowy ośrodek Kerra; odbicie nieliniowe; optyczne zjawisko Kerra; optyka nieliniowa; powierzchnia międzyfazowa; propagacja nieliniowa; propagacja sygnału optycznegp; przełączanie wiązki; pułapkowanie wiązki

EN

beam trapping; nonlinear Kerr medium; nonlinera-linear dielectric interface; optical Kerr effect; reduced variational technique; self-focusing

• Czasopismo: Journal of Technical Physics
• Rocznik: 2000
• Tom: Vol. 41, no 3
• Strony: 201-218
• Opis fizyczny: Bibliogr. 39 poz.,Rys., wykr.,

Twórcy

autor

Nasalski, W.

• Polish Academy of Sciences, Institute of Fundamental Technological Research, Świętokrzyska 21, 00-049 Warsaw, Poland