Тип публикации: статья из журнала
Год издания: 2015
Идентификатор DOI: 10.1364/OL.40.004002
Ключевые слова: Diffraction, Harmonic generation, Laser pulses, Nonlinear optics, Photonic crystals, Ultrafast lasers, Analytical expressions, Angular positions, Enhancement factor, High frequency HF, Nonlinear photonic crystals, Propagation direction, Raman - Nath diffractions, Two-dimensional nonlinear photonic crystal, Ultrashort pulses
Аннотация: We study second-harmonic generation (SHG) of femtosecond laser pulses in a rectangular two-dimensional nonlinear photonic crystal (NLPC). Multiple SH beams were observed in the vicinity of the propagation direction of the fundamental beam. It has been verified that the angular positions of these beams obey the conditions of nonlinear Raman-Nath diffraction (NRND). The measured SH spectra of specific NRND orders consist of narrow peaks that experience a high-frequency spectral shift as the order grows. We derive an analytical expression for the process studied and find the theoretical results to be in good agreement with the experimental data. We estimate the enhancement factor of nonlinear Raman-Nath diffraction in 2D NLPC to be 70. (C) 2015 Optical Society of America
Издание
Журнал: OPTICS LETTERS
Выпуск журнала: Vol. 40, Is. 17
Номера страниц: 4002-4005
ISSN журнала: 01469592
Место издания: WASHINGTON
Издатель: OPTICAL SOC AMER
Персоны
- Vyunishev A.M. (LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia)
- Arkhipkin V.G. (LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Lab Nonlinear Opt & Spect, Krasnoyarsk 660079, Russia)
- Slabko V.V. (Siberian Fed Univ, Dept Photon & Laser Technol, Krasnoyarsk 660079, Russia)
- Baturin I.S. (Ural Fed Univ, Ekaterinburg 620000, Russia; Labfer Ltd, Ekaterinburg 620014, Russia)
- Akhmatkhanov A.R. (Ural Fed Univ, Ekaterinburg 620000, Russia; Labfer Ltd, Ekaterinburg 620014, Russia)
- Shur V.Ya. (Ural Fed Univ, Ekaterinburg 620000, Russia; Labfer Ltd, Ekaterinburg 620014, Russia)
- Chirkin A.S. (Moscow MV Lomonosov State Univ, Fac Phys, Moscow 119992, Russia; Moscow MV Lomonosov State Univ, Ctr Int Laser, Moscow 119992, Russia)
Вхождение в базы данных
Информация о публикациях загружается с сайта службы поддержки публикационной активности СФУ. Сообщите, если заметили неточности.