Display modes in time-resolved terahertz imaging

被引：58

作者：

Herrmann, M ^{[1
]}

Tani, M ^{[1
]}

Sakai, K ^{[1
]}

机构：

[1] Kansai Adv Res Ctr, Commun Res Lab, Kobe, Hyogo 6512492, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2000年 / 39卷 / 11期

关键词：

terahertz imaging; THz imaging; T-ray imaging; THz movie; display mode; time-resolved spectroscopy; ultrafast; diffraction; absorption; gas detection;

D O I：

10.1143/JJAP.39.6254

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have constructed a terahertz (THz) imaging system based on a conventional pump-and-probe setup. With a time-delay line in the probe beam we can record time-resolved THz waveforms at every image position. The resulting time-indexed set of images (the 'THz movie') can be mapped to two-dimensional images with 'display modes'. Several of these 'display modes' are closely related to sample absorption and refraction, others are designed for very specific purposes such as gas detection. Some of the modes map specific features of the THz pulse without particular purpose, yet they prove to be useful in investigating features of THz images. Examples are provided.

引用

页码：6254 / 6258

页数：5

共 10 条

[1] PICOSECOND PHOTOCONDUCTING HERTZIAN DIPOLES [J].

AUSTON, DH ;

CHEUNG, KP ;

SMITH, PR .

APPLIED PHYSICS LETTERS, 1984, 45 (03) :284-286

[2] IMAGING WITH TERAHERTZ WAVES [J].

HU, BB ;

NUSS, MC .

OPTICS LETTERS, 1995, 20 (16) :1716-&

[3] Chemical recognition of gases and gas mixtures with terahertz waves [J].

Jacobsen, RH ;

Mittleman, DM ;

Nuss, MC .

OPTICS LETTERS, 1996, 21 (24) :2011-2013

[4] Subpicosecond imaging system based on electrooptic effect [J].

JacobsPerkins, D ;

Currie, M ;

Wang, CC ;

Williams, CA ;

Donaldson, WR ;

Sobolewski, R ;

Hsiang, TY .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1996, 2 (03) :729-738

[5] Real time THz imaging system based on electro-optic crystals [J].

Lu, ZG ;

Zhang, XC .

APPLICATIONS OF PHOTONIC TECHNOLOGY 3, 1998, 3491 :334-339

[6] Gas sensing using terahertz time-domain spectroscopy [J].

Mittleman, DM ;

Jacobsen, RH ;

Neelamani, R ;

Baraniuk, RG ;

Nuss, MC .

APPLIED PHYSICS B-LASERS AND OPTICS, 1998, 67 (03) :379-390

[7] T-ray imaging [J].

Mittleman, DM ;

Jacobsen, RH ;

Nuss, MC .

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 1996, 2 (03) :679-692

[8] Recent advances in terahertz imaging [J].

Mittleman, DM ;

Gupta, M ;

Neelamani, R ;

Baraniuk, RG ;

Rudd, JV ;

Koch, M .

APPLIED PHYSICS B-LASERS AND OPTICS, 1999, 68 (06) :1085-1094

[9] Emission characteristics of photoconductive antennas based on low-temperature-grown GaAs and semi-insulating GaAs [J].

Tani, M ;

Matsuura, S ;

Sakai, K ;

Nakashima, S .

APPLIED OPTICS, 1997, 36 (30) :7853-7859

[10] Two-dimensional electro-optic imaging of THz beams [J].

Wu, Q ;

Hewitt, TD ;

Zhang, XC .

APPLIED PHYSICS LETTERS, 1996, 69 (08) :1026-1028

← 1 →