Terahertz Radiation from Semiconductor Surfaces

2006 ◽  
pp. 63-98 ◽  
Author(s):  
Ping Gu ◽  
Masahiko Tani
Keyword(s):  
Terahertz Radiation ◽  
Semiconductor Surfaces

Origin of magnetic field enhancement in the generation of terahertz radiation from semiconductor surfaces

2001 ◽  
Vol 26 (11) ◽  
pp. 849 ◽  
Author(s):  
J. Shan ◽  
C. Weiss ◽  
R. Wallenstein ◽  
R. Beigang ◽  
T. F. Heinz
Keyword(s):  
Magnetic Field ◽  
Terahertz Radiation ◽  
Field Enhancement ◽  
Semiconductor Surfaces ◽  
Magnetic Field Enhancement

Magnetic-field-enhanced generation of terahertz radiation in semiconductor surfaces

2000 ◽  
Vol 77 (25) ◽  
pp. 4160-4162 ◽  
Author(s):  
C. Weiss ◽  
R. Wallenstein ◽  
R. Beigang
Keyword(s):  
Magnetic Field ◽  
Terahertz Radiation ◽  
Semiconductor Surfaces

Composite right/left-handed transmission line with array of thermocouples for generating terahertz radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20502
Author(s):  
Behrokh Beiranvand ◽  
Alexander S. Sobolev ◽  
Anton V. Kudryashov
Keyword(s):  
Transmission Line ◽  
Terahertz Radiation ◽  
Transmission Lines ◽  
Software Package ◽  
Optical Pulses ◽  
Capacitively Coupled ◽  
Voltage Difference ◽  
Left Handed ◽  
Microwave Transmission ◽  
Commercial Software Package

We present a new concept of the thermoelectric structure that generates microwave and terahertz signals when illuminated by femtosecond optical pulses. The structure consists of a series array of capacitively coupled thermocouples. The array acts as a hybrid type microwave transmission line with anomalous dispersion and phase velocity higher than the velocity of light. This allows for adding up the responces from all the thermocouples in phase. The array is easily integrable with microstrip transmission lines. Dispersion curves obtained from both the lumped network scheme and numerical simulations are presented. The connection of the thermocouples is a composite right/left-handed transmission line, which can receive terahertz radiation from the transmission line ports. The radiation of the photon to the surface of the thermocouple structure causes a voltage difference with the bandwidth of terahertz. We examined a lossy composite right/left-handed transmission line to extract the circuit elements. The calculated properties of the design are extracted by employing commercial software package CST STUDIO SUITE.

STRUCTURE OF CLEAN III-V SEMICONDUCTOR SURFACES

1989 ◽  
Vol 50 (C7) ◽  
pp. C7-119-C7-128
Author(s):  
M. SAUVAGE-SIMKIN
Keyword(s):  
Semiconductor Surfaces
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