Results 51 to 60 of about 65,222 (316)

Stimulated terahertz emission due to electronic Raman scattering in silicon

, 2009
Silicon-based semiconductors are intensively investigated over the past years as promising candidates for optoelectronic devices at terahertz (THz) frequencies [1]. Optically pumped intracenter silicon lasers, realized in the past decade in the THz range,
Pavlov, S.G., Hubers, H. W., Riemann, H., Hübers, H.-W., van der Meer, A.F.G., H. Riemann, R. Kh. Zhukavin, Redlich, B., Pavlov, S.G. (author), Böttger, U. (author), Abrosimov, N.V. (author), J. N. Hovenier, Abrosimov, N.V., Hübers, H.W. (author), Hübers, H.W., V. N. Shastin, Pavlov, S. G., Hovenier, J.N. (author), Böttger, U., Abrosimov, N. V., Shastin, V. N., Shastin, V.N., U. Böttger, N. V. Abrosimov, S. G. Pavlov, Zhukavin, R. K., Redlich, B. (author), Zhukavin, R.K., Hovenier, J. N., B. Redlich, Hovenier, J.N., Zhukavin, R.K. (author), A. F. G. van der Meer, Zhukavin, R.Kh., Van der Meer, A.F.G. (author), H.-W. Hübers, Shastin, V.N. (author), van der Meer, A. F. G., Riemann, H. (author)   +38 more
core   +1 more source

Modelling of reconfigurable terahertz integrated architecture (RETINA) SIW structures [PDF]

, 2010
23.04.13 KB. Published version ok to add to spiral. PIER emailThis paper discusses for the first time the combined optoelectronic-electromagnetic modelling of a new technology that represents a paradigm shift in the way millimetre-wave and terahertz ...
Stepan Lucyszyn, Lucyszyn, S, Yun Zhou, Zhou, Y   +3 more
core   +1 more source

Microelectromechanical Maltese-cross metamaterial with tunable terahertz anisotropy

, 2012
Dichroic polarizers and waveplates exploiting anisotropic materials have vast applications in displays and numerous optical components, such as filters, beamsplitters and isolators. Artificial anisotropic media were recently suggested for the realization
Zhu, W.M., Zhang, X.H., Bourouina, T., Kwong, D.L., Tsai, D.P., Liu, A.Q., Lo, G.Q., Zheludev, N.I., Teng, J.H.   +8 more
core   +1 more source

Mitigating the Nonlinearity of Radio-over-Fiber Terahertz Systems

, 2022
We experimentally demonstrate a highly-precise equalization technique based on a Volterra nonlinear filter for highly nonlinear terahertz communications systems.
Shehata, M., Wang, K., Withayachumnankul, W.   +2 more
core   +1 more source

Terahertz pump-probe experiment at the synchrotron light source MLS

, 2013
We have developed a pump-probe experiment utilizing broad-band coherent terahertz synchrotron radiation provided by the Metrology Light Source (MLS).
H.-W. Hubers, Hoehl, Arne, Pohl, Andreas, Ulm, Gerhard, Müller, Ralph, R. Muller, Pavlov, Sergey, A. Pohl, S. G. Pavlov, M. Ries, G. Wustefeld, Wüstefeld, Godehard, Hübers, Heinz-Wilhelm, Ries, Markus, G. Ulm, A. Hoehl   +15 more
core   +1 more source

Integrated disk resonator on substrateless dielectric waveguide platform for terahertz switch applications

, 2022
We present a terahertz single-pole double-throw (SPDT) switch based on an integrated disk resonator for a substrateless dielectric platform made of an all-silicon-based effective medium. The switch operates based on photoexcitation by using visible light
Fumeaux, C., Dechwechprasit, P., Withayachumnankul, W.   +2 more
core   +1 more source

Critical Factors for In Vivo Measurements of Human Skin by Terahertz Attenuated Total Reflection Spectroscopy

Sensors, 2020
Attenuated total reflection (ATR) geometry is a suitable choice for in vivo measurements of human skin due to the deep penetration of the field into the sample and since it makes it easy to measure the reference spectrum.
Lixia Wang, Sayon Guilavogui, Henghui Yin, Yiping Wu, Xiaofei Zang, Jingya Xie, Li Ding, Lin Chen   +7 more
doaj   +1 more source

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

Advanced Functional Materials, EarlyView.
Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin, Arthur L. Shilov, Subhajit Jana, Ilya Mazurenko, Pierre A. Pantaleon, Mikhail Kashchenko, Nikita Krivovichev, Viacheslav Dremov, Igor Gayduchenko, Takashi Taniguchi, Kenji Watanabe, Yibo Wang, Kostya S. Novoselov, Dmitry A. Svintsov, Grigory Goltsman, Elena I. Titova, Denis A. Bandurin   +16 more
wiley   +1 more source

A Two-Stage Time-Domain Equalization Method for Mitigating Nonlinear Distortion in Single-Carrier THz Communication Systems

Sensors
Terahertz (THz) communication is regarded as a key technology for achieving high-speed data transmission and wireless communication due to its ultra-high frequency and large bandwidth characteristics.
Yunchuan Liu, Hongcheng Yang, Ziqi Liu, Minghan Jia, Shang Li, Jiajie Li, Jingsuo He, Zhe Yang, Cunlin Zhang   +8 more
doaj   +1 more source

Contrast Enhancement for Topographic Imaging in Confocal Laser Scanning Microscopy

Applied Sciences, 2019
The influence of the axial pinhole position in a confocal microscope in terms of the contrast of the image is analyzed. The pinhole displacement method is introduced which allows to increase the contrast for topographic imaging.
Lena Schnitzler, Markus Finkeldey, Martin R. Hofmann, Nils C. Gerhardt   +3 more
doaj   +1 more source