SECOND HARMONIC GENERATION IN TWO-DIMENSIONAL PHOTONIC CRYSTAL CONSISTING OF CENTRO-SYMMETRIC DIELECTRIC

Autor:	Xianzhong Chen, Jianping Shi, Junqi Sun, Xunan Chen, Hanmin Yao, Gairong Yang
Rok vydání:	2005
Předmět:	Electromagnetic field Physics business.industry Finite-difference time-domain method Physics::Optics Second-harmonic generation Statistical and Nonlinear Physics Dielectric Condensed Matter Physics Polarization (waves) Wavelength Optics Surface second harmonic generation business Photonic crystal
Zdroj:	International Journal of Modern Physics B. 19:869-878
ISSN:	1793-6578 0217-9792
DOI:	10.1142/s0217979205027767
Popis:	We report optical second harmonic generation (OSHG) in a two dimension photonic crystal of centro-symmetric dielectric based on finite difference time domain (FDTD) algorithm. The electromagnetic field distribution in the structure and the intensity of second harmonic (SH) from electric quadrupole polarization along the waveguide are analyzed. The results show that the acute spatial variation of electromagnetic field results in the radiation of SH, and the intensity is proportional to the square of waveguide length. When the beam intensity of the pumping wave is 1.3 MW/mm2, which has wavelength of 10.6 μm, the conversion efficiency of power is 0.307% for a photonic crystal of Silicon with a length of 40 μm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7412996fbf739a1fa35d5a7d5ef73de https://doi.org/10.1142/s0217979205027767 Zobrazit plný text záznamu