Real time THz imaging system based on electro-optic crystals

被引:5
作者
Lu, ZG [1 ]
Zhang, XC [1 ]
机构
[1] Natl Res Council Canada, Inst Natl Measurement Stand, Ottawa, ON K1A 0R6, Canada
来源
APPLICATIONS OF PHOTONIC TECHNOLOGY 3 | 1998年 / 3491卷
关键词
real time THz imaging; electro-optic crystal sensors; femtosecond laser; the temporal and spatial distribution of free-space electromagnetic radiation; pulse front distortion (PFD);
D O I
10.1117/12.328750
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present a focal plane terahertz (THz) ray imaging system through use of a big-size < 100 > oriented ZnTe electrooptic crystal plate. Some concealed living insects and moving objects have been directly imaged and the dynamic processes of the THz field distributions are clearly displayed, both in real-time model. We also discuss the maximum and minimum sizes of the available imaging objects in this THz imaging system, and give ways to improve them.
引用
收藏
页码:334 / 339
页数:6
相关论文
共 16 条
[1]   NEAR-FIELD OPTICS - MICROSCOPY, SPECTROSCOPY, AND SURFACE MODIFICATION BEYOND THE DIFFRACTION LIMIT [J].
BETZIG, E ;
TRAUTMAN, JK .
SCIENCE, 1992, 257 (5067) :189-195
[2]  
CAMPBELL P, 1998, P SPIE OPTOELECTRONI, V3277
[3]   IMAGING WITH TERAHERTZ WAVES [J].
HU, BB ;
NUSS, MC .
OPTICS LETTERS, 1995, 20 (16) :1716-&
[4]  
HUNSCHE S, 1997, CLEO QELS 97
[5]   FEMTOSECOND PULSES IN THE FOCAL REGION OF LENSES [J].
KEMPE, M ;
RUDOLPH, W .
PHYSICAL REVIEW A, 1993, 48 (06) :4721-4729
[6]   Free-space electro-optic sampling with a high-repetition-rate regenerative amplified laser [J].
Lu, ZG ;
Campbell, P ;
Zhang, XC .
APPLIED PHYSICS LETTERS, 1997, 71 (05) :593-595
[7]  
LU ZG, 1997, OSA 97 ANN M LONG BE
[8]  
LU ZG, 1997, J CHINESE I ELECT EN, V4, P227
[9]   T-ray tomography [J].
Mittleman, DM ;
Hunsche, S ;
Boivin, L ;
Nuss, MC .
OPTICS LETTERS, 1997, 22 (12) :904-906
[10]   T-ray imaging [J].
Mittleman, DM ;
Jacobsen, RH ;
Nuss, MC .
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1996, 2 (03) :679-692