Results 231 to 240 of about 31,529 (265)
MetalMat, Volume 3, Issue 1, March 2026.This review explores current strategies for shaping two‐dimensional transition metal dichalcogenides (TMDs) beyond their planar form. It highlights how strain engineering, nanopatterning, and growth on complex substrates modulate their mechanical, optical, and electronic properties.
C. Grazianetti +6 more
wiley +1 more source
Advanced Quantum Technologies, Volume 9, Issue 3, March 2026.High‐precision time‐delay measurements are demonstrated using frequency‐resolved Hong‐Ou Mandel (HOM) interference with weak coherent states. The method, by exploiting the quantum eraser phenomenon, achieves low uncertainty even for delays exceeding the photon coherence time, where traditional HOM interferometry fails, thus confirming theoretical ...
Francesco Di Lena +9 more
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Artificial Intelligence in Food Safety: A Tertiary Study
Comprehensive Reviews in Food Science and Food Safety, Volume 25, Issue 2, March 2026.ABSTRACT Food safety remains a critical factor in preventing contaminated and hazardous products from reaching consumers. The integration of artificial intelligence (AI) and its capacity to deal with vast datasets has significantly enhanced food safety protocols, and a substantial number of primary and secondary studies have emerged at the intersection
Marina Arribas Lopez +2 more
wiley +1 more source
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Optics Letters, 2001
We demonstrate quasi-optical, diffraction-limited two-dimensional image production by means of reflected pulses of terahertz (THz) radiation. A spherical mirror is used to form a real one-to-one THz image of two 1-mm-diameter steel spheres, which is then scanned over a THz receiver.
J, O'Hara, D, Grischkowsky
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We demonstrate quasi-optical, diffraction-limited two-dimensional image production by means of reflected pulses of terahertz (THz) radiation. A spherical mirror is used to form a real one-to-one THz image of two 1-mm-diameter steel spheres, which is then scanned over a THz receiver.
J, O'Hara, D, Grischkowsky
openaire +2 more sources
Physics in Medicine and Biology, 2002
A near-field probe is described that enables high spatial resolution imaging with terahertz (THz) pulses. The spatial resolution capabilities of the system lie in the range of few microns and we demonstrate a resolution of 7 microm using broad-banded THz pulses with an intensity maximum near 0.5 THz.
John F, Federici +8 more
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A near-field probe is described that enables high spatial resolution imaging with terahertz (THz) pulses. The spatial resolution capabilities of the system lie in the range of few microns and we demonstrate a resolution of 7 microm using broad-banded THz pulses with an intensity maximum near 0.5 THz.
John F, Federici +8 more
openaire +2 more sources
Optics Letters, 1995
We present what is to our knowledge the first imaging system based on optoelectronic terahertz time-domain spectroscopy. Terahertz time-domain waveforms are downconverted from the terahertz to the kilohertz frequency range, and the waveform for each pixel is frequency analyzed in real time with a digital signal processor to extract compositional ...
B B, Hu, M C, Nuss
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We present what is to our knowledge the first imaging system based on optoelectronic terahertz time-domain spectroscopy. Terahertz time-domain waveforms are downconverted from the terahertz to the kilohertz frequency range, and the waveform for each pixel is frequency analyzed in real time with a digital signal processor to extract compositional ...
B B, Hu, M C, Nuss
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2011 International Conference on Infrared, Millimeter, and Terahertz Waves, 2011
The near filed terahertz wave imaging technology has been applied in security screening for detecting objects concealed under clothes. This paper describes two terahertz wave imaging system that acquires the body image by opto-mechanical scanner. One system is worked at reflective mode. Another system is worked at transitive mode.
Cunlin Zhang, Chao Deng
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The near filed terahertz wave imaging technology has been applied in security screening for detecting objects concealed under clothes. This paper describes two terahertz wave imaging system that acquires the body image by opto-mechanical scanner. One system is worked at reflective mode. Another system is worked at transitive mode.
Cunlin Zhang, Chao Deng
openaire +1 more source
SPIE Proceedings, 2010
ABSTRACT The application of THz plasmonics in imaging dielectric objects embedded in the metallic media is presented. Signatures of the embedded object was detected when the time domain information of the transmitted pulse was analyzed by THz time domain spectroscop y. The resolution of the acquired images was enhanced by using a super-resolution image
P. Maraghechi +2 more
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ABSTRACT The application of THz plasmonics in imaging dielectric objects embedded in the metallic media is presented. Signatures of the embedded object was detected when the time domain information of the transmitted pulse was analyzed by THz time domain spectroscop y. The resolution of the acquired images was enhanced by using a super-resolution image
P. Maraghechi +2 more
openaire +1 more source
Applied Physics Letters, 2009
We report on a configuration of confocal spatial filtering applied to terahertz imaging. Theoretical analysis of the confocal terahertz imaging layout agrees fairly well with the experimental observations of the enhancement of optical resolving power, both lateral and axial, leading to three-dimensional optical slicing, in comparison with the image ...
N. N. Zinov’ev, A. V. Andrianov
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We report on a configuration of confocal spatial filtering applied to terahertz imaging. Theoretical analysis of the confocal terahertz imaging layout agrees fairly well with the experimental observations of the enhancement of optical resolving power, both lateral and axial, leading to three-dimensional optical slicing, in comparison with the image ...
N. N. Zinov’ev, A. V. Andrianov
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Synthetic phased-array terahertz imaging
Optics Letters, 2002We demonstrate terahertz (THz) imaging with enhanced spatial resolution by a synthetic phased array. A single mirror is used to separately form two different coherent, diffraction-limited THz images of the same point source. The two images are combined to yield a 4x resolution-enhanced image of the source in one dimension.
John, O'Hara, D, Grischkowsky
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