Results 21 to 30 of about 2,677,605 (251)

Terahertz generation from laser-induced plasma

open access: yesOpto-Electronic Science, 2022
Interest of the research in terahertz (THz) wave has been strongly motivated by its wide applications in the fields of physics, chemistry, biology, and engineering. Developing efficient and reliable THz source is of uttermost priority in these researches.
Wenfeng Sun, Xinke Wang, Yan Zhang
doaj   +1 more source

Spectrally resolved wave-mixing between near- and far-infrared pulses in gas [PDF]

open access: yes, 2013
We investigate the nonlinear wave-mixing in gases between intense, short optical pulses and long-wavelength fields (mid infrared and terahertz). We show numerically that the beating between the sum- and difference-frequency generation components can be ...
Schmidt, Bruno E.   +59 more
core   +1 more source

Application of terahertz spectroscopy to the characterization of biological samples using birefringence silicon grating [PDF]

open access: yes, 2012
We present a device and method for performing vector transmission spectroscopy on biological specimens at terahertz (THz) frequencies. The device consists of artificial dielectric birefringence obtained from silicon microfluidic grating structures. The
Saha, S.C.   +3 more
core   +1 more source

Stimulated terahertz emission due to electronic Raman scattering in silicon [PDF]

open access: yes, 2009
Silicon-based semiconductors are intensively investigated over the past years as promising candidates for optoelectronic devices at terahertz (THz) frequencies [1]. Optically pumped intracenter silicon lasers, realized in the past decade in the THz range,
Pavlov, S.G.   +38 more
core   +2 more sources

Terahertz generation from surface of the bulk and monolayer tungsten diselenide

open access: yesРоссийский технологический журнал, 2020
The study of ultrafast laser interaction with graphene-like materials based on transition metal dichalcogenides attracts most scientific groups. It is connected with potential use of these materials in flexible optoelectronic devices of visible and THz ...
D. I. Khusyainov   +2 more
doaj   +1 more source

Multi-mJ terahertz generation in periodically poled Lithium-Niobate by pulse recycling with dispersion compensation [PDF]

open access: yesEPJ Web of Conferences, 2019
We propose a design for high efficiency narrow-band terahertz generation using multiple stages with dispersion compensation. Terahertz efficiencies of a few percent are predicted.
Wang Lu   +3 more
doaj   +1 more source

Terahertz single pixel imaging based on a Nipkow disk [PDF]

open access: yes, 2012
We describe a terahertz single pixel imaging system based on a Nipkow disk. Nipkow disks have been used for fast scanning imaging systems since the first experimental television was invented in 1926.
Saha, S., Cumming, D., Ma, Y., Grant, J.
core   +1 more source

Wave-mixing analysis for THz-signals generation in dc-biased semiconductor optical devices at room temperature [PDF]

open access: yes, 2010
Wave-mixing at 370-GHz in a SOA and FP semiconductor laser is investigated by using a FROG-system. A comparison of the optical time-fluctuations measured at their output stresses the importance of a resonant cavity in THz-signals generation from ...
Frederic Surre   +7 more
core   +2 more sources

Modelling of reconfigurable terahertz integrated architecture (RETINA) SIW structures [PDF]

open access: yes, 2010
23.04.13 KB. Published version ok to add to spiral. PIER emailThis paper discusses for the first time the combined optoelectronic-electromagnetic modelling of a new technology that represents a paradigm shift in the way millimetre-wave and terahertz ...
Stepan Lucyszyn   +3 more
core   +1 more source

Theoretical Analysis of Terahertz Frequency Multiplier Based on Semiconductor Superlattices

open access: yesNanomaterials, 2022
We propose a terahertz frequency multiplier based on high order harmonic generation in a GaAs-based miniband superlattice driven by an electric field.
Wei Feng   +4 more
doaj   +1 more source

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