Results 71 to 80 of about 65,222 (316)

Polarization dynamics in spin‐VCSELs with integrated surface grating for high birefringence splitting

Electronics Letters, 2023
Polarization dynamics in spin‐polarized vertical‐cavity surface‐emitting lasers (spin‐VCSELs) with high birefringence have recently been demonstrated to offer very high potential for optical data‐transmission systems that outperform their counterparts ...
Markus Lindemann, Natalie Jung, Nicolas Manrique‐Nieto, Tobias Pusch, Rainer Michalzik, Nils C. Gerhardt, Martin R. Hofmann   +6 more
doaj   +1 more source

Planar terahertz metamaterials for strain sensing

, 2012
Extent: 2p.We present two designs of planar terahertz metamaterials for strain sensing. A series of resonance frequency shifts are obtained with differing gap widths when the sensor is under mechanical compression.
Abbott, D., Shah, C., Sriram, S., Ung, B., Charan M. Shah, Madhu Bhaskaran, Withayachumnankul, W., Chang, S., Jining Li, Shengjiang Chang, Bhaskaran, M., Derek Abbott, Benjamin S. Y. Ung, Li, J., Sharath Sriram, Withawat Withayachumnankul   +15 more
core   +1 more source

All-silicon terahertz components towards efficient integrated systems

, 2020
Efficient integrated systems can be considered as a next milestone for practical applications of terahertz technology. Various types of integrated platforms have been directly scaled from either the microwave or optical domain, with benefits and ...
Weijie Gao, Gao, W., Christophe Fumeaux, Fumeaux, C., Withawat Withayachumnankul, Withayachumnankul, W.   +5 more
core   +1 more source

Terahertz spectrum analyzer based on a terahertz frequency comb

Optics Express, 2008
Precision frequency measurements of terahertz (THz) waves are required to establish metrology in the THz spectral region. However, frequency measurement techniques in this region are immature. We propose a THz spectrum analyzer to measure the absolute frequency and spectral shape of continuous-wave THz waves.
Shuko, Yokoyama, Ryotaro, Nakamura, Masaki, Nose, Tsutomu, Araki, Takeshi, Yasui   +4 more
openaire   +2 more sources

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

Dual Low-Rank Constrained Self-Representation Learning for Unsupervised SAR Image Change Detection

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Change detection (CD) in bitemporal synthetic aperture radar images has been an important research direction in remote sensing intelligent interpretation.
Weisong Li, Yinwei Li, Yiming Zhu
doaj   +1 more source

Terahertz Non-Destructive Testing and Imaging of High-Voltage Cables

Frontiers in Physics, 2022
The evaluation of the internal defects in high-voltage cross-linked polyethylene cables is highly crucial for the security and reliability of power transmission.
Zhang Zhenwei, Zhang Zhenwei, Xu Jing, Jia Rui, Wu Yinghong, Guan Hao, Han Siyi, Zhang Cunlin, Zhao Yuejin   +8 more
doaj   +1 more source

Tunable photonic crystal filter for terahertz frequency applications [PDF]

, 2003
In this Paper we investigate a tunable metallic photonic crystal filter with a novel mechanical tuning method, suitable for use in terahertz frequency applications.
Blaikie, R.J., Drysdale, T.D., Tim D. Drysdale, Richard J. Blaikie, Cumming, D.R.S., David R. S. Cumming   +5 more
core   +1 more source

3D Anodic Alumina Nanoarchitectures: A Decade of Progress from Foundational Science to Functional Metamaterials

Advanced Materials, EarlyView.
Ordered three‐dimensional anodic aluminum oxide (3D‐AAO) nanoarchitectures with longitudinal and transverse pores enable architecture‐driven metamaterials. The review maps fabrication advances, including hybrid pulse anodization, and shows how 3D‐AAO templates tailor properties across magnetism, energy, catalysis, and sensing.
Marisol Martín‐González
wiley   +1 more source

Terahertz magnetic plasmon waveguides

, 2012
Extent: 2p.A design of subwavelength terahertz waveguides is presented in this manuscript. The structure is composed of a linear chain of split-ring resonators (SRRs), i.e., artificial magnetic atoms. The energy transport along the chain can be described
Markus Walther, Abbott, D., Derek Abbott, Christophe Fumeaux, Walther, M., Kaltenecker, K., Liu, H., Fumeaux, C., Korbinian Kaltenecker, Hui Liu, Withawat Withayachumnankul, Withayachumnankul, W.   +11 more
core   +1 more source