Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1364/JOSAB.32.002411

Ключевые слова: Diffraction, Nonlinear optics, Optical frequency conversion, Phase matching, Analytical calculation, Analytical expressions, Angular deviations, Broadband frequency, Non-linear optical, Propagation direction, Quasi phase matching, Raman - Nath diffractions, Harmonic generation

Аннотация: We analyze second-harmonic generation (SHG) in a two-dimensional nonlinear optical superlattice (NLOS) with its modulation period being chirped in the propagation direction and constant in the transverse direction. This results in efficient multiple SHG via nonlinear Raman-Nath diffraction. We obtain exact analytical expressions foПоказать полностьюr a SH amplitude generated in chirped 2D NLOSs and for its quasi-phase-matching bandwidth. The results of analytical calculations are in excellent agreement with the numerical ones. We show that the process is robust to angular deviations of NLOS and it can be applied to enable tunable and broadband frequency conversion. (C) 2015 Optical Society of America

Журнал: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS

Выпуск журнала: Vol. 32, Is. 12

Номера страниц: 2411-2416

ISSN журнала: 07403224

Место издания: WASHINGTON

Издатель: OPTICAL SOC AMER

• Vyunishev Andrey M. (LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia)
• Arkhipkin Vasily G. (LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660079, Russia)
• Chirkin Anatoly S. (Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia; Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119992, Russia)

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