Results 61 to 70 of about 31,529 (265)

Wideband THz time domain spectroscopy based on optical rectification and electro-optic sampling [PDF]

, 2013
We present an analytical model describing the full electromagnetic propagation in a THz time-domain spectroscopy (THz-TDS) system, from the THz pulses via Optical Rectification to the detection via Electro Optic-Sampling.
A Schneider, AC Busacca, BB Hu, CM Nuss, DA Kleinman, DH Auston, E Berry, F Zernike, G Gallot, G Sharma, G Sharma, G Xu, HA Bethe, HJ Bakker, J Ahn, J Faure, JJ Carey, K Fukunaga, K Gallo, KH Yang, L Mutter, M Bass, M Cherchi, M Clerici, M Peccianti, M Schall, Matteo Clerici, MM Fejer, N Horiuchi, P Mounaix, PA Franken, PH Siegel, Q Chen, T Löffler, WE Torruellas, X Zheng, YJ Ding, YJ Ding, YJ Ding   +38 more
core   +1 more source

Observation of Relativistic Domain Wall Motion in Amorphous Ferrimagnets

Advanced Functional Materials, EarlyView.
Domain walls in ferrimagnets and antiferromagnets move as relativistic sine‐Gordon solitons, with the spin‐wave velocity setting their speed limit. Such relativistic domain‐wall motion is demonstrated in amorphous GdFeCo near angular momentum compensation, where current‐driven walls reach 90% of the 2 kms−1 spin‐wave speed, enabling ultrafast, device ...
Pietro Diona, Luca Maranzana, Sergey Artyukhin, Giacomo Sala   +3 more
wiley   +1 more source

Strong Terahertz Absorption of Monolayer Graphene Embedded into a Microcavity

Nanomaterials, 2021
Terahertz reflection behaviors of metallic-grating-dielectric-metal (MGDM) microcavity with a monolayer graphene embedded into the dielectric layer are theoretically investigated.
Xuguang Guo, Lejie Xue, Zhenxing Yang, Mengjian Xu, Yiming Zhu, Dixiang Shao, Zhanglong Fu, Zhiyong Tan, Chang Wang, Juncheng Cao, Chao Zhang   +10 more
doaj   +1 more source

THz Instruments for Space [PDF]

, 2007
Terahertz technology has been driven largely by applications in astronomy and space science. For more than three decades cosmochemists, molecular spectroscopists, astrophysicists, and Earth and planetary scientists have used submillimeter-wave or ...
Siegel, Peter H.
core   +1 more source

Clean Up Behind You ‐ Novel Patterning Approach for Solid Immersion Lenses

Advanced Functional Materials, EarlyView.
A focused ion beam (FIB) milling strategy enables rapid fabrication of solid immersion lenses (SILs) with smooth, debris‐free surfaces eliminating the need for post‐processing. The optimized pattern improves efficiency and surface quality. SILs containing NV centers are also investigated, confirming the technique's suitability for quantum and photonic ...
Aleksei Tsarapkin, Stefan Facsko, Wentao Zhang, Anna Mogilatenko, Kilian Unterguggenberger, Bailiang Li, Cem Güney Torun, Gerhard Hobler, Tommaso Pregnolato, Tim Schröder, Katja Höflich   +10 more
wiley   +1 more source

Ultra-wideband terahertz fingerprint enhancement sensing and inversion model supported by single-pixel reconfigurable graphene metasurface

PhotoniX
The molecular fingerprint sensing technology based on metasurface has unique attraction in the biomedical field. However, in the terahertz (THz) band, existing metasurface designs based on multi-pixel or angle multiplexing usually require more analyte ...
Bingwei Liu, Yan Peng, YuFan Hao, Yiming Zhu, Shengjiang Chang, Songlin Zhuang   +5 more
doaj   +1 more source

Study of multi-long-pulse thermography using high-power fiber lasers

AIP Advances, 2023
Active infrared thermography tests are performed using a high-power continuous fiber laser as the excitation source. Multi-long-pulses (MLPs) are used to detect deep defects in samples with reduced heating.
Gangbo Hu, Xue Yang, Xiangyu Wang, Wei Fang, Ning Tao   +4 more
doaj   +1 more source

Time-domain terahertz compressive imaging

Optics Express, 2020
We present an implementation of the single-pixel imaging approach into a terahertz (THz) time-domain spectroscopy (TDS) system. We demonstrate the indirect coherent reconstruction of THz temporal waveforms at each spatial position of an object, without the need of mechanical raster-scanning.
L. Zanotto, R. Piccoli, J. Dong, D. Caraffini, R. Morandotti, L. Razzari   +5 more
openaire   +3 more sources

Prospects for terahertz imaging the human skin cancer with the help of gold-nanoparticles-based terahertz-to-infrared converter

, 2019
The design is suggested, and possible operation parameters are discussed, of an instrument to inspect a skin cancer tumour in the terahertz (THz) range, transferring the image into the infrared (IR) and making it visible with the help of standard IR ...
A. G. Paulish, AS Darling, AV Postnikov, AV Postnikov, B. B. Hu, B. Lesiak, C Loo, Cecilie Ro/nne, CL Huang, DALI, E Pickwell, Elizabeth Berry, H Okamoto, I ELSAYED, J. W. Lynn, JH Chen, JH Son, K Moldosanov, KA Moldosanov, KA Moldosanov, KFA Ross, N. E. Christensen, NW Ashcroft, PS Zagubisalo, R Kubo, R. KUBO, RM Woodward, RM Woodward, RM Woodward, S.-J. Oh, SA Kuznetsov, SA Kuznetsov, Sergei Alexandrovich Kuznetsov, Sergey A. Kuznetsov, Seung Jae Oh, Seung Jae Oh, SJ Oh, T Rowland, Tschang-Uh Nahm, V.P. Wallace, VP Wallace, X Huang, Yu. Ya. Gafner, ZM Zhang   +43 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source