Chromatic effect in a novel THz generation scheme

doi:10.1088/1367-2630/aa82e7

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Chromatic effect in a novel THz generation scheme
	Li, B; Zhang, WY; Liu, XQ; Deng, HX; Lan, TH; Liu, B; Liu, J; Wang, XT; Zeng, ZN; Zhang, LJ
刊名	NEW JOURNAL OF PHYSICS
	2017
卷号	19 期号:-页码:-
关键词	Optical Rectification Terahertz Generation Lithium-niobate Laser-pulses Spectroscopy Limitations Excitation Radiation Phase
ISSN号	1367-2630
DOI	10.1088/1367-2630/aa82e7
文献子类	期刊论文
英文摘要	Deriving single or few cycle terahertz (THz) pulse by an intense femtosecond laser through cascaded optical rectification is a crucial technique in cutting-edge time-resolved spectroscopy to characterize micro-scale structures and ultrafast dynamics. Due to the broadband nature of the ultrafast driving laser, the chromatic effect limits the THz conversion efficiency in optical rectification crystals, especially for those implementing the pulse-front tilt scheme, e.g. lithium niobate (LN) crystal, has been prevalently used in the past decade. In this research we developed a brand new type of LN crystal utilizing Brewster coupling, and conducted systematically experimental and simulative investigation for the chromatic effect and multi-dimensionally entangled parameters in THz generation, predicting that an extreme conversion efficiency of similar to 10% would be potentially achievable at the THz absorption coefficient of similar to 0.5 cm(-1). Moreover, we first discovered that the chirp of the driving laser plays a decisive role in the pulse-front tilt scheme, and the THz generation efficiency could be enhanced tremendously by applying an appropriate chirp.
WOS关键词	OPTICAL RECTIFICATION ; TERAHERTZ GENERATION ; LITHIUM-NIOBATE ; LASER-PULSES ; SPECTROSCOPY ; LIMITATIONS ; EXCITATION ; RADIATION ; PHASE
语种	英语
WOS记录号	WOS:000415863200001
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/28580]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Li, B,Zhang, WY,Liu, XQ,et al. Chromatic effect in a novel THz generation scheme[J]. NEW JOURNAL OF PHYSICS,2017,19(-):-.
APA	Li, B.,Zhang, WY.,Liu, XQ.,Deng, HX.,Lan, TH.,...&Zhang, LJ.(2017).Chromatic effect in a novel THz generation scheme.NEW JOURNAL OF PHYSICS,19(-),-.
MLA	Li, B,et al."Chromatic effect in a novel THz generation scheme".NEW JOURNAL OF PHYSICS 19.-(2017):-.