Results 51 to 60 of about 219,971 (340)

THz Pulsed Imaging in Biomedical Applications

Condensed Matter, 2020
Recent advances in technology have allowed the production and the coherent detection of sub-ps pulses of terahertz (THz) radiation. Therefore, the potentialities of this technique have been readily recognized for THz spectroscopy and imaging in ...
A. D’arco, Marta di Fabrizio, V. Dolci, M. Petrarca, S. Lupi   +4 more
semanticscholar   +1 more source

Semiconductor saturable absorbers for ultrafast THz signals [PDF]

, 2010
We demonstrate saturable absorber behavior of n-type semiconductors GaAs, GaP and Ge in THz frequency range at room temperature using nonlinear THz spectroscopy.
Conwell E. M., Dmitry Turchinovich, Matthias C. Hoffmann   +2 more
core   +4 more sources

Two-dimensional spectroscopy on a THz quantum cascade structure

Nanophotonics, 2020
Understanding and controlling the nonlinear optical properties and coherent quantum evolution of complex multilevel systems out of equilibrium is essential for the new semiconductor device generation.
Markmann Sergej, Franckié Martin, Pal Shovon, Stark David, Beck Mattias, Fiebig Manfred, Scalari Giacomo, Faist Jérôme   +7 more
doaj   +1 more source

Antenna Selection and Designing for THz Applications: Suitability and Performance Evaluation: A Survey

IEEE Access, 2020
Imperceptible latency, uninterrupted communication, and the availability of inexhaustible bandwidth are conceptualized as essential milestones to revolutionize the modes by which societies generated, circulate, receive, and perceive information.
Muhammad Ali Jamshed, Alissa Nauman, M. A. B. Abbasi, S. Kim   +3 more
semanticscholar   +1 more source

Low Loss and Magnetic Field-tuned Superconducting THz Metamaterial

, 2010
Superconducting terahertz (THz) metamaterial (MM) made from superconducting Nb film has been investigated using a continuous-wave THz spectroscopy with a superconducting split-coil magnet. The obtained quality factors of the resonant modes at 132 GHz and
Andrei Pimenov, Azad, Biaobing Jin, Caihong Zhang, Chen, Chen, Chunhai Cao, Coffey, Driscoll, Grbic, Jian Chen, Jingbo Wu, Katsarakis, Lapine, Lin Kang, Padilla, Peiheng Wu, Pendry, Peroz, Pronin, Qinyin Xu, Ricci, Ricci, Schurig, Sebastian Engelbrecht, Shen, Singh, Weiwei Xu, Wilke, Yuan   +29 more
core   +2 more sources

Probing terahertz surface plasmon waves in graphene structures [PDF]

, 2013
Epitaxial graphene mesas and ribbons are investigated using terahertz (THz) nearfield microscopy to probe surface plasmon excitation and THz transmission properties on the sub-wavelength scale.
Berger, Claire, Brener, Igal, de Heer, Walter A., Jiang, Yuxuan, Jiang, Zhigang, Mitrofanov, Oleg, Pan, Wei, Thompson, Robert J., Yu, Wenlong   +8 more
core   +4 more sources

Tunable Nanosensor Based on Fano Resonances Created by Changing the Deviation Angle of the Metal Core in a Plasmonic Cavity

Sensors, 2018
In this paper, a type of tunable plasmonic refractive index nanosensor based on Fano resonance is proposed and investigated. The sensor comprises a metal-insulator-metal (MIM) nanocavity with a center-deviated metal core and two side-coupled waveguides ...
Qiong Wang, Zhengbiao Ouyang, Yiling Sun, Mi Lin, Qiang Liu, Guoliang Zheng, Junxing Fan   +6 more
doaj   +1 more source

THz-to-optical conversion in wireless communications using an ultra-broadband plasmonic modulator [PDF]

Nature Photonics, 2018
Future wireless communication networks will need to handle data rates of tens or even hundreds of Gbit s−1 per link, requiring carrier frequencies in the unallocated THz spectrum1,2.
S. Ummethala, T. Harter, K. Koehnle, Zheng Li, S. Muehlbrandt, Y. Kutuvantavida, J. Kemal, J. Schaefer, A. Tessmann, S. K. Garlapati, A. Bacher, L. Hahn, M. Walther, T. Zwick, S. Randel, W. Freude, C. Koos   +16 more
semanticscholar   +1 more source

Terahertz generation in Czochralski grown periodically poled Mg:Y:LiNbO3 via optical rectification

, 2005
Using a canonical pump-probe experimental technique, we studied the terahertz (THz) waves generation and detection via optical rectification and mixing in Czochralski-grown periodically poled Mg:Y:LiNbO3 (PPLN) crystals.
Auston, Auston, Auston, Bryan, Caumes, Cho, Evlanova, G. H. Ma, G. Kh. Kitaeva, Grilli, Han, Hebling, I. I. Naumova, Johnson, Kawase, Kawase, Kitaeva, Kitaeva, Lee, Lee, Lu, Ma, Ma, Nahata, Naumova, Neil, Qin, Qiu, S. H. Tang, Schwarz, Shan, Smolorz, Stoyanov, Ward, Weiss, Xu, Yang   +36 more
core   +1 more source

High Q-Factor Resonance in a Symmetric Array of All-Dielectric Bars

Applied Sciences, 2018
Strong electrical dipole resonance (ER) with high quality-factor (Q) (over several thousands) in a simple silicon all-dielectric rod arrays without asymmetric structure is achieved in the near infrared (NIR) wavelength range.
Chuanshuai Sui, Xiangjun Li, Tingting Lang, Xufeng Jing, Jianjun Liu, Zhi Hong   +5 more
doaj   +1 more source