Adaptive spatiotemporal optical pulse front tilt using a digital micromirror device and its terahertz application

被引：19

作者：

Murate, Kosuke ^{[1
,2
]}

Roshtkhari, Mehraveh Javan ^{[1
]}

Ropagnol, Xavier ^{[1
,3
]}

Blanchard, Francois ^{[1
]}

机构：

[1] ETS, Elect Engn Dept, Montreal, PQ, Canada

[2] Nagoya Univ, Elect Engn Dept, Nagoya, Aichi, Japan

[3] INRS EMT, Varennes, PQ, Canada

来源：

OPTICS LETTERS | 2018年 / 43卷 / 09期

基金：

日本学术振兴会; 加拿大自然科学与工程研究理事会;

关键词：

THZ GENERATION; DESIGN; LIGHT;

D O I：

10.1364/OL.43.002090

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report a new method to temporally and spatially manipulate the pulse front tilt (PFT) intensity profile of an ultrashort optical pulse using a commercial microelectromechanical system, also known as a digital micromirror device (DMD). For our demonstration, we show terahertz generation in a lithium niobate crystal using the PFT pumping scheme derived from a DMD chip. The adaptive functionality of the DMD could be a convenient alternative to the more conventional grating required to generate a laser beam with a PFT intensity profile that is typically used for efficient optical rectification in noncollinear phase-matching conditions. In contrast to a grating, PFT using DMD does not suffer from wavelength dispersion, and exhibits overlap properties between grating and a stair-step echelon mirror. (C) 2018 Optical Society of America

引用

页码：2090 / 2093

页数：4

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