Electric quadrupole second-harmonic generation spectra in epitaxial vanadyl and titanyl phthalocyanine films grown by molecular-beam epitaxy

1997 ◽  
Vol 107 (6) ◽  
pp. 1687-1691 ◽  
Author(s):  
Hajime Hoshi ◽  
Toshiki Yamada ◽  
Ken Ishikawa ◽  
Hideo Takezoe ◽  
Atsuo Fukuda
Keyword(s):  
Molecular Beam Epitaxy ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Molecular Beam ◽  
Second Harmonic ◽  
Electric Quadrupole ◽  
Titanyl Phthalocyanine

scholarly journals Nonlinear optical diagnostics crystal structure of semiconductor films in molecular beam epitaxy

2021 ◽  
Keyword(s):  
Crystal Structure ◽  
Molecular Beam Epitaxy ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Nonlinear Optical ◽  
Molecular Beam ◽  
Second Harmonic ◽  
Universal Method ◽  
Semiconductor Films ◽  
Control And Management

The main advantage of molecular beam epitaxy (MBE) is the control and management of the parameters of atomic and molecular fluxes, as well as the characteristics of growing layers during growth. A constructively simple and fairly universal method for diagnosing the struc-tural perfection of semiconductor films during their synthesis in an MBE device for second harmonic generation (SH) using a repetitively pulsed YAG: Nd laser is presented.

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

2005 ◽  
Vol 19 (05) ◽  
pp. 869-878 ◽  
Author(s):  
JIANPING SHI ◽  
XIANZHONG CHEN ◽  
XUNAN CHEN ◽  
HANMIN YAO ◽  
GAIRONG YANG ◽  
...  
Keyword(s):  
Electromagnetic Field ◽  
Photonic Crystal ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Finite Difference Time Domain ◽  
Second Harmonic ◽  
Electric Quadrupole ◽  
Waveguide Length ◽  
Two Dimensional Photonic Crystal ◽  
Difference Time

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.

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