Detectivity enhancement in THz electrooptical sampling

被引：22
作者：
Ahmed, Saima [1 ]
Savolainen, Janne [1 ]
Hamm, Peter [1 ]
机构：
[1] Univ Zurich, Dept Chem, Zurich, Switzerland
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2014年 / 85卷 / 01期
基金：
瑞士国家科学基金会;
关键词：
TERAHERTZ-PROBE SPECTROSCOPY; TIME-DOMAIN SPECTROSCOPY; DYNAMICS; ELECTRONS; SILICON; DRIVEN;
D O I：
10.1063/1.4862657
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We demonstrate and discuss a simple scheme that significantly enhances the detectivity of THz electro-optical sampling by introducing a sequence of Brewster windows that increases the ellipticity of the probe beam. By varying the window material or the number of Brewster windows, the enhancement factor can be adjusted; we demonstrate an enhancement factor of approximate to 20 with four ZnSe Brewster windows. The scheme is particularly useful when very small THz fields are to be measured in connection with low-repetition rate amplified Ti:S laser systems. (C) 2014 AIP Publishing LLC.
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页数：3
相关论文
共 24 条
[11]  
Lee Y.-S., 2010, PRINCIPLES TERAHERTZ
[12]   Ultrafast dipole solvation measured in the far infrared [J].
McElroy, R ;
Wynne, K .
PHYSICAL REVIEW LETTERS, 1997, 79 (16) :3078-3081
[13]   T-ray imaging [J].
Mittleman, DM ;
Jacobsen, RH ;
Nuss, MC .
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1996, 2 (03) :679-692
[14]   Methodology of an optical pump-terahertz probe experiment: An analytical frequency-domain approach [J].
Nemec, H ;
Kadlec, F ;
Kuzel, P .
JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (18) :8454-8466
[15]   DIRECT SUBPICOSECOND MEASUREMENT OF CARRIER MOBILITY OF PHOTOEXCITED ELECTRONS IN GALLIUM-ARSENIDE [J].
NUSS, MC ;
AUSTON, DH ;
CAPASSO, F .
PHYSICAL REVIEW LETTERS, 1987, 58 (22) :2355-2358
[16]  
Pickwell E., 2009, J PHYS D, V02, pR301
[17]   Coherent orbital waves in the photo-induced insulator-metal dynamics of a magnetoresistive manganite [J].
Polli, D. ;
Rini, M. ;
Wall, S. ;
Schoenlein, R. W. ;
Tomioka, Y. ;
Tokura, Y. ;
Cerullo, G. ;
Cavalleri, A. .
NATURE MATERIALS, 2007, 6 (09) :643-647
[18]   Table-top sources of ultrashort THz pulses [J].
Reimann, Klaus .
REPORTS ON PROGRESS IN PHYSICS, 2007, 70 (10) :1597-1632
[19]   Two-dimensional Raman-terahertz spectroscopy of water [J].
Savolainen, Janne ;
Ahmed, Saima ;
Hamm, Peter .
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2013, 110 (51) :20402-20407
[20]   Exploring dynamics in the far-infrared with terahertz spectroscopy [J].
Schmuttenmaer, CA .
CHEMICAL REVIEWS, 2004, 104 (04) :1759-1779
123