Results 21 to 30 of about 14,830 (240)

Applications of terahertz spectroscopy in the plastics industry [PDF]

open access: yes, 2022
Paper 68400VThe worldwide production volume of polymers is still rising exponentially and the number of applications for plastic components steadily increases. Yet, many branches within the polymer industry are hardly supported by non-destructive testing
Wietzke, S.   +7 more
core   +1 more source

Electromagnetic Design of Dual Resonant Structures for Improved Sensitivity of Terahertz Label Free Bio-Sensing [PDF]

open access: yes, 2010
A design is proposed exploiting full wave numerical simulation of a dual resonant structure with an aim to sense small amounts of chemical and biochemical materials. The structure is energized with free space radiation in the terahertz regime.
Mihai D. Rotaru   +3 more
core   +1 more source

Power scaling of ultra-thin terahertz beam-splitters [PDF]

open access: yes, 2012
Extent: 2p.A low-cost ultra-thin broadband terahertz beam-splitter based on a thin conductive layer has previously been fabricated and tested. Here, this paper shows the linearity of power scaling of the beam-splitter from lower to higher power in ...
Ng, B.   +11 more
core   +1 more source

Improved sensitivity of terahertz label free bio-sensing application through trapped-mode resonances in planar resonators [PDF]

open access: yes, 2011
A design is proposed and investigated exploiting full wave numerical simulation of a dual resonant structure with an aim to sense small amounts of chemical and biochemical materials.
Rotaru, Mihai D.   +3 more
core   +1 more source

Sum-Frequency Signals in 2D-Terahertz-Terahertz-Raman Spectroscopy [PDF]

open access: yes, 2020
We demonstrate that halogenated methane 2D-Terahertz Terahertz Raman (2D-TTR) spectra are determined by the complicated structure of the instrument response function (IRF) along $f_1$ and by the molecular coherences along $f_2$. Experimental improvements
Griffin Mead (1760926)   +4 more
core   +1 more source

Terahertz nonlinear optics & III-V semiconductor nanowires [PDF]

open access: yes, 2022
Most commercially available terahertz spectrometers make use of resonant and non-resonant methods to generate and detect THz radiation. This allows only the low frequency spectrum to be accessed, usually from 0.1 THz to 8 THz, severely limiting the range
Damry, Djamshid Ahmud
core   +2 more sources

A compact, continuous-wave terahertz source based on a quantum-cascade laser and a miniature cryocooler [PDF]

open access: yes, 2010
We report on the development of a compact, easy-to-use terahertz radiation source, which combines a quantum cascade laser (QCL) operating at 3.1 THz with a compact, low input-power Stirling cooler.
Semenov, Alexey   +10 more
core   +1 more source

200 Hz rapid scan fiber-coupled terahertz time domain spectroscopy system [PDF]

open access: yes, 2022
S.701-702A high speed optical delay line in combination with a fiber-coupled terahertz time domain spectroscopy system allows for scan rates up to 200 Hz, a spectral resolution of about 10 GHz and a bandwidth of 3 ...
Beigang, R.   +5 more
core   +1 more source

Determination of the water content in petroleum products using terahertz transmission spectroscopy [PDF]

open access: yes, 2022
S.145-154The water content in polyglycol oils is investigated by Terahertz Time-Domain Spectroscopy (THz-TDS). These oils are able to dissolve a certain percentage of water.
Tauer, U.   +4 more
core   +1 more source

Research of Biological Liquid Albumin Based on Terahertz Time-Domain Spectroscopy [PDF]

open access: yes, 2016
There is no corresponding fingerprint characteristic spectrum detecting complex ensemble biological samples in liquid, in the paper, such urine of kidney disease patients as samples of the research, using terahertz time-domain spectroscopy emphatically ...
Zuo, Jian   +7 more
core   +1 more source

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