(Invited Paper) The calculation method of high conversion efficiency THz pulse generation by optical rectification of ultrashort laser pulses with tilted pulse fronts

Lei Yang , Wei Shi ^* , Lei Hou , Chengang Dong , and Panpan Wang
Applied Physics Department, Xi’an University of Technology, Xi’an, China, 710048
^* Email: swshi@mail.xaut.edu.cn

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Abstract:  The high conversion generation efficiency THz generation through optical rectification using a tilted optical pulse front is described. A calculation method of tilted-pulse-front scheme has detailed descriptions, including the tilt introduced by the grating, increase of the pulse front tilt by demagnification in the imaging of the pulse from the grating onto the generation crystal, and propagation of the tilted intensity front from free-space into the generation crystal. We get an optimal demagnification 3.75 of the imaging system for maximum THz conversion efficiency (＆0.1519×10^-3)

Keywords: Terahertz , Lithium niobate (LiNbO₃ ), Optical rectification, Tilted pulse fronts.

Received: 2017-6-1

Published: 2017-6-30

Cite this article:
Lei Yang, Wei Shi, Lei Hou, Chengang Dong, and Panpan Wang. (Invited paper) The calculation method of high conversion efficiency THz pulse generation by optical rectification of ultrashort laser pulses with tilted pulse fronts[J]. International Journal of Terahertz Science and Technology, 2017, Vol.10, No.2: 54-61.  DOI:10.11906/TST.054-061.2017.06.03

URL: http://www.tstnetwork.org/10.11906/TST.054-061.2017.06.03