PatentDOI
Broadband terahertz generation of metamaterials
TLDR
In this paper, the authors proposed a method to generate single-cycle THz pulses from a few tens of nanometers thin layer of split ring resonators via optical rectification of femtosecond laser pulses.Abstract:
Provided are systems and methods to generate single-cycle THz pulses from a few tens of nanometers thin layer of split ring resonators (SRRs) via optical rectification of femtosecond laser pulses. The emitted THz radiation, with a spectrum ranging from about 0.1 to 4 THz, arises exclusively from pumping the magnetic-dipole resonance of SRRs around 200 THz. This resonant enhancement, together with pump polarization dependence and power scaling of the THz emission, underpins the nonlinearity from optically induced circulating currents in SRRs, with a huge effective nonlinear susceptibility of 0.8×10−16 m2/V that far exceeds surface nonlinearities of both thin films and bulk organic/inorganic crystals and sheet nonlinearities of non-centrosymmetric materials such as ZnTe.read more
Citations
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Journal ArticleDOI
A review of metasurfaces: physics and applications.
TL;DR: Recent progress in the physics of metasurfaces operating at wavelengths ranging from microwave to visible is reviewed, with opinions of opportunities and challenges in this rapidly developing research field.
Journal ArticleDOI
Broadband Metamaterial Absorbers
Peng Yu,Peng Yu,Lucas V. Besteiro,Lucas V. Besteiro,Yongjun Huang,Jiang Wu,Lan Fu,Hark Hoe Tan,Chennupati Jagadish,Gary P. Wiederrecht,Alexander O. Govorov,Alexander O. Govorov,Zhiming Wang +12 more
TL;DR: In this paper, the authors presented a review of the Advanced Optical Materials Hall of Fame article series, which recognizes the excellent contributions of leading researchers to the field of optical materials science. But they did not mention the work of the authors of this article.
Journal ArticleDOI
Extreme terahertz science
TL;DR: In the future, sources of intense terahertz radiation will open up an era of extreme terrahertz science featuring nonlinear light-matter interactions and applications in spectroscopy and imaging as discussed by the authors.
Journal ArticleDOI
Mechanisms and applications of terahertz metamaterial sensing: a review
Wendao Xu,Lijuan Xie,Yibin Ying +2 more
TL;DR: In the present work, the mechanism of THz metamaterial sensing and dry sample and microfluidic sensing applications based on meetamaterials are introduced and new directions of THZ metamMaterial sensing advancement and introduction of two-dimensional materials and nanoparticles for future THz applications are summarized and discussed.
Journal ArticleDOI
Powerful and Tunable THz Emitters Based on the Fe/Pt Magnetic Heterostructure
TL;DR: In this article, the intensity and spectrum of THz wave is demonstrated to be tunable by the magnetic field applied on the patterned magnetic Fe/Pt heterostructures.
References
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Journal ArticleDOI
Cutting-edge terahertz technology
TL;DR: An overview of the status of the terahertz technology, its uses and its future prospects are presented in this article, with a focus on the use of the waveband in a wide range of applications.
Journal ArticleDOI
Metamaterials and negative refractive index.
TL;DR: Recent advances in metamaterials research are described and the potential that these materials may hold for realizing new and seemingly exotic electromagnetic phenomena is discussed.
Journal ArticleDOI
Materials for terahertz science and technology
Bradley Ferguson,Xi-Cheng Zhang +1 more
TL;DR: Terahertz spectroscopy and imaging provide a powerful tool for the characterization of a broad range of materials, including semiconductors and biomolecules, as well as novel, higher-power terahertz sources.
Journal ArticleDOI
Optical negative-index metamaterials
TL;DR: In this paper, a review describes the recent progress made in creating nanostructured metamaterials with a negative index at optical wavelengths, and discusses some of the devices that could result from these new materials.
Journal ArticleDOI
Terahertz semiconductor-heterostructure laser
R. Kohler,Alessandro Tredicucci,Fabio Beltram,Harvey E. Beere,Edmund H. Linfield,Giles Davies,David A. Ritchie,Rita Claudia Iotti,Fausto Rossi +8 more
TL;DR: A monolithic terahertz injection laser that is based on interminiband transitions in the conduction band of a semiconductor (GaAs/AlGaAs) heterostructure is reported, which is very promising for extending the present laser concept to continuous-wave and high-temperature operation, which would lead to implementation in practical photonic systems.