Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2017

Идентификатор DOI: 10.1364/OL.42.001189

Ключевые слова: Conversion efficiency, Crystal structure, Efficiency, Photonic crystals, Ferroelectric crystal, Frequency-doubling, Intensity oscillations, Intermediate layers, Nonlinear photonic crystals, Periodically poled structures, Second harmonics, Statistical frequency, Frequency doublers

Аннотация: We study the frequency doubling in a quadratic nonlinear photonic crystal consisting of periodically poled structures mediated by uniform layers with random lengths. These structures can be formed by new local impact methods for ferroelectric crystal structuring. The statistical frequency doubling theory is developed for such structures. The effect of the number of random layers and variation in their thicknesses on the second-harmonic conversion efficiency is clarified. It is demonstrated that a proper choice of the intermediate layer thickness can enhance or suppress the conversion efficiency. A new type of the Makerfringes-like second-harmonic intensity oscillations is predicted. © 2017 Optical Society of America.

Журнал: Optics Letters

Выпуск журнала: Vol. 42, Is. 6

Номера страниц: 1189-1192

• Vyunishev A.M. (Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation, Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk, Russian Federation)
• Chirkin A.S. (Faculty of Physics and International Laser Center, M. V. Lomonosov Moscow State University, Moscow, Russian Federation)

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