Results 31 to 40 of about 44,433 (290)
Ultrafast carrier generation in Bi1-xSbx thin films induced by intense monocycle terahertz pulses [PDF]
EPJ Web of Conferences, 2019 Using terahertz-pump and terahertz-probe spectroscopy, we investigated terahertz-induced carrier generation processes in Bi1-xSbx thin films. The field dependence of the terahertz-induced transmittance change indicates distinct nonlinearity related to ...
Katayama Ikufumi +9 more
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Terahertz dipole nanoantenna arrays: resonance characteristics [PDF]
, 2012 Resonant dipole nanoantennas promise to considerably improve the capabilities of terahertz spectroscopy, offering the possibility of increasing its sensitivity through local field enhancement, while in principle allowing unprecedented spatial resolutions,
Angelis, Francesco +11 more
core +1 more source
Light-induced Difference Terahertz Spectroscopy [PDF]
Journal of Biological Physics, 2003 Visible/near-infraredlaser-induced difference spectroscopy basedon a time-domain terahertz system has beendeveloped, and used to study copperpathancyonine. We find that the absorptionpeak of this molecule at 1.08 THz changessignificantly under 790 nm laserexcitation, suggesting that we haveobserved the first evidence of vibrationalmode changes in the ...
Y C, Shen +3 more
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Sum-Frequency Signals in 2D-Terahertz-Terahertz-Raman Spectroscopy [PDF]
The Journal of Physical Chemistry B, 2020 Supplemental information available after main ...
Griffin Mead +4 more
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Journal of Spectroscopy, 2022 This paper introduces a method to detect the content of sucrose, an adulterant of red ginseng, based on terahertz spectroscopy. Experiments were carried out on red ginseng with 6 levels of adulterated concentrations using terahertz time-domain ...
Shubao Pan +4 more
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Scientific Reports, 2022 With the continuous development of terahertz (THz) detection technology, the use of terahertz spectroscopy to study chemical samples has become one of the indispensable tools in the field of biochemistry.
Qinghao Meng +6 more
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Diffraction-limited ultrabroadband terahertz spectroscopy [PDF]
Scientific Reports, 2016 AbstractDiffraction is the ultimate limit at which details of objects can be resolved in conventional optical spectroscopy and imaging systems. In the THz spectral range, spectroscopy systems increasingly rely on ultra-broadband radiation (extending over more 5 octaves) making a great challenge to reach resolution limited by diffraction.
Baillergeau, M +9 more
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Terahertz Field Confinement in Nonlinear Metamaterials and Near-Field Imaging
Photonics, 2019 This article reviews recent advances in terahertz science and technology that rely on confining the energy of incident terahertz radiation to small, very sub-wavelength sized regions. We focus on two broad areas of application for such field confinement:
George R. Keiser, Pernille Klarskov
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Terahertz quasi time domain spectroscopy
Optics Express, 2009 It is shown theoretically and experimentally that for the specific case of an equidistant frequency spacing of semiconductor laser modes, signals similar to terahertz (THz) time domain spectroscopy (TDS) can be detected in a standard photomixer setup.
Maik Scheller, Martín Koch
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Dual terahertz comb spectroscopy with a single free-running fibre laser [PDF]
, 2018 Dual THz comb spectroscopy has the potential to be used as universal THz spectroscopy with high spectral resolution, high spectral accuracy, and broad spectral coverage; however, the requirement for dual stabilized femtosecond lasers hampers its ...
Hu, Guoqing +8 more
core +2 more sources