Contactless Characterization of a Si Wafer with Terahertz Time-Domain Spectroscopy Using a Continuous-Wave Multimode Laser Diode

2013 ◽  
Vol 52 (11R) ◽  
pp. 112401 ◽  
Author(s):  
Osamu Morikawa ◽  
Masami Fujita ◽  
Masanori Hangyo
Keyword(s):  
Laser Diode ◽  
Time Domain ◽  
Continuous Wave ◽  
Terahertz Time Domain Spectroscopy ◽  
Multimode Laser ◽  
Time Domain Spectroscopy ◽  
Multimode Laser Diode ◽  
Si Wafer

High-resolution optical time domain reflectmetry based on a broadband continuous wave multimode laser diode

1996 ◽  
Vol 3 (6) ◽  
pp. A556-A559
Author(s):  
Yishu Wang ◽  
Tadayuki Funaba ◽  
Tsutomu Ichimura ◽  
Naohiro Tan-No
Keyword(s):  
High Resolution ◽  
Laser Diode ◽  
Time Domain ◽  
Continuous Wave ◽  
Multimode Laser ◽  
Optical Time ◽  
Multimode Laser Diode

High-resolution optical time domain reflectmetry based on a broadband continuous wave multimode laser diode

1996 ◽  
Vol 3 (6) ◽  
pp. 556-559
Author(s):  
Yishu Wang ◽  
Tadayuki Funaba ◽  
Tsutomu Ichimura ◽  
Naohiro Tan-No
Keyword(s):  
High Resolution ◽  
Laser Diode ◽  
Time Domain ◽  
Continuous Wave ◽  
Multimode Laser ◽  
Optical Time ◽  
Multimode Laser Diode

Terahertz time-domain spectroscopy characterization of nitrocellulose in transmission and reflection configurations

Optik ◽  
2020 ◽  
Vol 224 ◽  
pp. 165711
Author(s):  
Noureddine Maamar ◽  
Mohamed Lazoul ◽  
Feriel Yasmine Latreche ◽  
Djalal Trache ◽  
Jean-Louis Coutaz
Keyword(s):  
Time Domain ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Transmission And Reflection

scholarly journals Characterization of Wheat Varieties Using Terahertz Time-Domain Spectroscopy

Sensors ◽  
2015 ◽  
Vol 15 (6) ◽  
pp. 12560-12572 ◽  
Author(s):  
Hongyi Ge ◽  
Yuying Jiang ◽  
Feiyu Lian ◽  
Yuan Zhang ◽  
Shanhong Xia
Keyword(s):  
Time Domain ◽  
Terahertz Time Domain Spectroscopy ◽  
Wheat Varieties ◽  
Time Domain Spectroscopy

scholarly journals Terahertz Time-Domain Spectroscopy Based on Commercially Available 1550 nm Fabry–Perot Laser Diode and ErAs:In(Al)GaAs Photoconductors

2019 ◽  
Vol 9 (13) ◽  
pp. 2704 ◽  
Author(s):  
Kai-Henning Tybussek ◽  
Kevin Kolpatzeck ◽  
Fahd Faridi ◽  
Sascha Preu ◽  
Jan C. Balzer
Keyword(s):  
Laser Diode ◽  
Time Domain ◽  
Dynamic Range ◽  
Laser System ◽  
Industrial Applications ◽  
Thz Radiation ◽  
Full Potential ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Fabry Perot

THz time-domain spectroscopy (TDS) is a promising tool for quality control purposes in industrial applications, but the high cost and the relatively large laser sources still make it difficult to use the full potential of the technology for a decent price. In this work, a THz TDS system, which uses a commercially available Fabry–Perot laser diode emitting at 1550 nm, is presented. By dispersion compensation, pulses with a duration of 544 fs were generated, resulting in THz radiation with a bandwidth of 1.4 THz and a peak dynamic range of 56 dB with state-of-the-art ErAs:In(Al)GaAs photoconducting antennas. These results are compared with those of a conventional and expensive fiber laser system with a 90 fs pulse duration.

Compact and inexpensive continuous-wave subterahertz imaging system with a fiber-coupled multimode laser diode

2007 ◽  
Vol 90 (16) ◽  
pp. 161127 ◽  
Author(s):  
Kyoji Shibuya ◽  
Masahiko Tani ◽  
Masanori Hangyo ◽  
Osamu Morikawa ◽  
Hirofumi Kan
Keyword(s):  
Laser Diode ◽  
Continuous Wave ◽  
Imaging System ◽  
Multimode Laser ◽  
Multimode Laser Diode
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