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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 3, Iss. S1 — Aug. 28, 2005
  • pp: S60–S61

A new method for second harmonic generation

Jianping Shi, Haiying Li, Xunan Chen, Haofei Shi, Changtao Wang, and Chunlei Du  »View Author Affiliations


Chinese Optics Letters, Vol. 3, Issue S1, pp. S60-S61 (2005)


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Abstract

We report a new method for second harmonic generation (SHG) by using centro-symmetric dielectric, of which 'chi'(2) is zero, rather than common nonlinear material. By designing the unique structure of centro-symmetric dielectric, which consists of two photonic crystals and several air waveguides, the efficient second-harmonic (SH) has obtained for the sharp enhancement of the electric quadrupole polarization. Based on finite difference time domain (FDTD) algorithm, the electromagnetic field distribution in the structure and the intensity of SH along the waveguide are analyzed. When the beam intensity of the pumping wave is 1.3 MW/mm2, the conversion efficiency of power is 0.307% for a photonic crystal waveguide with a length of 40 'mu'm.

© 2005 Chinese Optics Letters

OCIS Codes
(160.1190) Materials : Anisotropic optical materials
(190.4360) Nonlinear optics : Nonlinear optics, devices
(230.4320) Optical devices : Nonlinear optical devices
(230.7370) Optical devices : Waveguides

Citation
Jianping Shi, Haiying Li, Xunan Chen, Haofei Shi, Changtao Wang, and Chunlei Du, "A new method for second harmonic generation," Chin. Opt. Lett. 3, S60-S61 (2005)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-3-S1-S60

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