scholarly journals Cascaded DFG via quasi-phase matching with Cherenkov-type PPLN for highly efficient terahertz generation

2019 ◽  
Vol 27 (12) ◽  
pp. 17199 ◽  
Author(s):  
Juntao Huang ◽  
Zhiming Rao ◽  
Fangsen Xie
Keyword(s):  
Phase Matching ◽  
Terahertz Generation ◽  
Highly Efficient ◽  
Quasi Phase Matching

Analysis of highly efficient DFG in an electro-optic material exhibiting polarization rotation using TIR-based ORQPM technique

2021 ◽  
Author(s):  
Moumita Saha ◽  
Sumita Deb
Keyword(s):  
Conversion Efficiency ◽  
Optical Rotation ◽  
Difference Frequency Generation ◽  
Guided Wave ◽  
Phase Matching ◽  
Highly Efficient ◽  
Quasi Phase Matching ◽  
Rectangular Slab ◽  
The Impact ◽  
Matching Techniques

This paper is a numeric-analytical work for highly efficient difference-frequency generation (DFG) by the integrated effect of total-internal-reflection-based optical rotation quasi-phase-matching (ORQPM) and nonresonant quasi-phase-matching techniques in a thin yttrium oxide-coated rectangular slab of magnesium oxide-doped lithium niobate crystal. The conversion efficiency of 37.2% has been obtained by ray-optics analysis, corresponding to an idler wavelength of 1570[Formula: see text]nm. Moreover, the guided-wave approach has also been analyzed for more accurate and realistic outcomes, yielding a peak conversion efficiency of 1.64%. The impact of the influencing factors like surface roughness, absorption, and nonlinear law of reflection has also been incorporated in the computer-aided simulation for providing a pragmatic understanding of the whole study.

Terahertz Generation in Quasi-Phase-Matching Structures Using Femtosecond Laser Pulses

2007 ◽  
Vol 51 (2) ◽  
pp. 493-497 ◽  
Author(s):  
Nan Ei Yu ◽  
Changsoo Jung ◽  
Chul-Sik Kee ◽  
Yeung Lak Lee ◽  
Bong-Ahn Yu ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Phase Matching ◽  
Terahertz Generation ◽  
Quasi Phase Matching

Quasi-phase matching analysis of the terahertz generation in CdTe pumped by 1064nm ns laser

2011 ◽  
Author(s):  
Jing Guo Huang ◽  
Bing Bing Wang ◽  
Jin Xing Lu ◽  
Zhi Ming Huang
Keyword(s):  
Phase Matching ◽  
Terahertz Generation ◽  
Quasi Phase Matching

Quasi-phase matching with tapered waveguides for Terahertz generation

2013 ◽  
Author(s):  
Banie Abeywickrama ◽  
Ampalavanapillai Nirmalathas ◽  
Christina Lim ◽  
Ka-Lun Lee ◽  
Malin Premaratne
Keyword(s):  
Phase Matching ◽  
Terahertz Generation ◽  
Quasi Phase Matching ◽  
Tapered Waveguides
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