scholarly journals Conversion of short optical pulses to terahertz radiation in a nonlinear medium: Experiment and theory

2007 ◽  
Vol 76 (23) ◽  
Author(s):  
N. N. Zinov’ev ◽  
A. S. Nikoghosyan ◽  
R. A. Dudley ◽  
J. M. Chamberlain
Keyword(s):  
Terahertz Radiation ◽  
Nonlinear Medium ◽  
Optical Pulses

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.

scholarly journals Generation of unipolar pulses from nonunipolar optical pulses in a nonlinear medium

2011 ◽  
Vol 84 (2) ◽  
Author(s):  
Victor V. Kozlov ◽  
Nikolay N. Rosanov ◽  
Costantino De Angelis ◽  
Stefan Wabnitz
Keyword(s):  
Nonlinear Medium ◽  
Optical Pulses

Terahertz radiation from a magnetoplasma wave excited by ultrashort optical pulses

2010 ◽  
Vol 107 (11) ◽  
pp. 113505 ◽  
Author(s):  
Hisashi Sumikura ◽  
Takeshi Nagashima ◽  
Masanori Hangyo ◽  
Masahiko Tani
Keyword(s):  
Terahertz Radiation ◽  
Optical Pulses ◽  
Ultrashort Optical Pulses

Effect of Ultrafast Optical Pulses with Different Pulse Duration on the Terahertz Radiation Spectrum of n-Type InAs

2004 ◽  
Vol 43 (No. 6A) ◽  
pp. L746-L748
Author(s):  
Hiroshi Takahashi ◽  
Michael. P. Hasselbeck ◽  
Alex Quema ◽  
Masahiro Goto ◽  
Shingo Ono ◽  
...  
Keyword(s):  
Pulse Duration ◽  
Terahertz Radiation ◽  
Radiation Spectrum ◽  
Optical Pulses ◽  
Ultrafast Optical ◽  
Ultrafast Optical Pulses

scholarly journals The characteristics of terahertz radiation from InAs irradiated with femtosecond optical pulses of different wavelengths

2008 ◽  
Vol 57 (2) ◽  
pp. 790
Author(s):  
Sun Hong-Qi ◽  
Zhao Guo-Zhong ◽  
Zhang Cun-Lin ◽  
Yang Guo-Zhen
Keyword(s):  
Terahertz Radiation ◽  
Optical Pulses

scholarly journals Световые пули с бесселевым поперечным сечением в среде углеродных нанотрубок

2022 ◽  
Vol 130 (3) ◽  
pp. 407
Author(s):  
А.М. Белоненко ◽  
И.С. Двужилов ◽  
Ю.В. Двужилова ◽  
М.Б. Белоненко
Keyword(s):  
Carbon Nanotubes ◽  
Key Words ◽  
Cross Section ◽  
Nonlinear Medium ◽  
Three Dimensional ◽  
Optical Pulses ◽  
Limited Region ◽  
Conservation Of Energy ◽  
Light Bullets ◽  
Extremely Short Optical Pulses

The propagation of three-dimensional extremely short optical pulses (light bullets) with a Bessel cross section in a medium of carbon nanotubes placed in an optical resonator is considered. As a result of numerical calculations, it was found that such pulses propagate stably with conservation of energy in a limited region of space, including at large times of the order of 100 ps. Key words: extremely short optical pulses, nonlinear medium, light bullets, carbon nanotubes.

Terahertz radiation from superconducting YBa2Cu3O7−δ thin films excited by femtosecond optical pulses

1996 ◽  
Vol 69 (14) ◽  
pp. 2122-2124 ◽  
Author(s):  
M. Hangyo ◽  
S. Tomozawa ◽  
Y. Murakami ◽  
M. Tonouchi ◽  
M. Tani ◽  
...  
Keyword(s):  
Thin Films ◽  
Terahertz Radiation ◽  
Optical Pulses

Terahertz Radiation from Atomic Clusters Illuminated by Intense Femtosecond Optical Pulses

2009 ◽  
Vol 129 (11) ◽  
pp. 776-780 ◽  
Author(s):  
Takeshi Nagashima ◽  
Masaki Hashida ◽  
Shigeki Tokita ◽  
Shuji Sakabe
Keyword(s):  
Terahertz Radiation ◽  
Atomic Clusters ◽  
Optical Pulses

Terahertz radiation from InAs with various surface orientations under magnetic field irradiated with femtosecond optical pulses at different wavelengths

2004 ◽  
Vol 95 (9) ◽  
pp. 4545-4550 ◽  
Author(s):  
Hiroshi Takahashi ◽  
Masahiro Sakai ◽  
Alex Quema ◽  
Shingo Ono ◽  
Nobuhiko Sarukura ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Terahertz Radiation ◽  
Optical Pulses
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