Route of delivering 40-fs ultra-short laser pulses for gating photoconductive antenna in fiber-coupled terahertz time-domain spectroscopy

2012 ◽  
Vol 51 (8) ◽  
pp. 085001 ◽  
Author(s):  
Jia Liu
Keyword(s):  
Time Domain ◽  
Laser Pulses ◽  
Photoconductive Antenna ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Short Laser Pulses

TERAHERTZ TIME-DOMAIN SPECTROSCOPY BASED ON NONLINEAR OPTICS

2002 ◽  
Vol 11 (01) ◽  
pp. 31-48 ◽  
Author(s):  
JIE SHAN ◽  
AJAY NAHATA ◽  
TONY F. HEINZ
Keyword(s):  
Nonlinear Optics ◽  
Time Domain ◽  
Second Harmonic ◽  
Laser Pulses ◽  
Femtosecond Laser Pulses ◽  
Coherent Detection ◽  
Optical Rectification ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Multichannel Detection

We present a brief review of the use of nonlinear optics for broadband terahertz (THz) time-domain spectroscopy with femtosecond laser pulses. The generation of THz pulses is accomplished by optical rectification and coherent detection by electro-optic sampling or field-induced second-harmonic generation. The approach permits exceptional time response, as well as the possibility for multichannel detection schemes.

scholarly journals Echo-Less Photoconductive Antenna Sources for High-Resolution Terahertz Time-Domain Spectroscopy

2016 ◽  
Vol 6 (1) ◽  
pp. 20-25 ◽  
Author(s):  
Kenneth Maussang ◽  
Anthony Brewer ◽  
Jose Palomo ◽  
Jean-Michel Manceau ◽  
Raffaele Colombelli ◽  
...  
Keyword(s):  
High Resolution ◽  
Time Domain ◽  
Photoconductive Antenna ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy

scholarly journals Echo-less Photoconductive Antenna sources for High-resolution Terahertz Time-domain Spectroscopy

2016 ◽  
Author(s):  
Kenneth Maussang ◽  
Anthony Brewer ◽  
José Palomo ◽  
Jean-Michel Manceau ◽  
Raffaele Colombelli ◽  
...  
Keyword(s):  
High Resolution ◽  
Time Domain ◽  
Photoconductive Antenna ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy

scholarly journals Improving a Terahertz Time-Domain Spectroscopy Apparatus Using Neodymium Magnets

2015 ◽  
Vol 62 ◽  
pp. 10-14
Author(s):  
Kaori Yano ◽  
Toshiaki Hattori
Keyword(s):  
Time Domain ◽  
Signal To Noise Ratio ◽  
Laser Pulses ◽  
Terahertz Wave ◽  
Femtosecond Laser Pulses ◽  
Terahertz Waves ◽  
Terahertz Time Domain Spectroscopy ◽  
Wave Source ◽  
Time Domain Spectroscopy ◽  
Neodymium Magnets

The signal-to-noise ratio obtained from terahertz time-domain spectroscopy is significantly affected by the low available power of terahertz waves. We constructed a terahertz-wave source with emission power enhanced by a magnetic field. The emitter is composed of an InAs wafer and two neodymium magnets. The emitter was irradiated by femtosecond laser pulses. The data quality of terahertz spectroscopic measurements was evaluated, and reduction of error in the data obtained due to the terahertz power enhancement was observed.

Sign in / Sign up

Export Citation Format

Share Document