Dielectric metasurfaces for shaping optical fields: from deep-UV to the terahertz (Conference Presentation)

Author(s):  
Amit Kumar Agrawal
Keyword(s):  
2020 ◽  
Vol 140 (7) ◽  
pp. 152-157
Author(s):  
Hirofumi Chiba ◽  
Yukio Suzuki ◽  
Yoshiaki Yasuda ◽  
Mitsuyasu Kumagai ◽  
Takaaki Koyama ◽  
...  

Author(s):  
Tomoyasu SADO ◽  
Kumiko OGUMA ◽  
Takashi HASHIMOTO ◽  
Shinobu KAZAMA ◽  
Satoshi TAKIZAWA

2019 ◽  
Vol 512 ◽  
pp. 213-218 ◽  
Author(s):  
Wenxian Yang ◽  
Yukun Zhao ◽  
Yuanyuan Wu ◽  
Xuefei Li ◽  
Zhiwei Xing ◽  
...  

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Nakao Hayashi ◽  
Chunhua Li ◽  
Pavel I. Naumkin

We consider the initial value problem for the nonlinear dissipative Schrödinger equations with a gauge invariant nonlinearityλup-1uof orderpn<p≤1+2/nfor arbitrarily large initial data, where the lower boundpnis a positive root ofn+2p2-6p-n=0forn≥2andp1=1+2forn=1.Our purpose is to extend the previous results for higher space dimensions concerningL2-time decay and to improve the lower bound ofpunder the same dissipative condition onλ∈C:Im⁡ λ<0andIm⁡ λ>p-1/2pRe λas in the previous works.


1996 ◽  
Author(s):  
Klony S. Lieberman ◽  
Hanan Terkel ◽  
Michael Rudman ◽  
A. Ignatov ◽  
Aaron Lewis

2021 ◽  
Author(s):  
Yanqiang Li ◽  
Zhengyang Zhou ◽  
Sangen Zhao ◽  
Fei Liang ◽  
Qingran Ding ◽  
...  
Keyword(s):  

2020 ◽  
Vol 117 (26) ◽  
pp. 261101
Author(s):  
Suhyun Kim ◽  
Jihyun Kim

Author(s):  
Hai Bi ◽  
Chao Jing ◽  
Peter Hasch ◽  
Yuxiang Gong ◽  
Daniel Gerster ◽  
...  

Nanophotonics ◽  
2020 ◽  
Vol 9 (11) ◽  
pp. 3535-3544 ◽  
Author(s):  
Laura Mercadé ◽  
Leopoldo L. Martín ◽  
Amadeu Griol ◽  
Daniel Navarro-Urrios ◽  
Alejandro Martínez

AbstractCavity optomechanics has recently emerged as a new paradigm enabling the manipulation of mechanical motion via optical fields tightly confined in deformable cavities. When driving an optomechanical (OM) crystal cavity with a laser blue-detuned with respect to the optical resonance, the mechanical motion is amplified, ultimately resulting in phonon lasing at MHz and even GHz frequencies. In this work, we show that a silicon OM crystal cavity performs as an OM microwave oscillator when pumped above the threshold for self-sustained OM oscillations. To this end, we use an OM cavity designed to have a breathing-like mechanical mode at 3.897 GHz in a full phononic bandgap. Our measurements show that the first harmonic of the detected signal displays a phase noise of ≈−100 dBc/Hz at 100 kHz. Stronger blue-detuned driving leads eventually to the formation of an OM frequency comb, whose lines are spaced by the mechanical frequency. We also measure the phase noise for higher-order harmonics and show that, unlike in Brillouin oscillators, the noise is increased as corresponding to classical harmonic mixing. Finally, we present real-time measurements of the comb waveform and show that it can be fitted to a theoretical model recently presented. Our results suggest that silicon OM cavities could be relevant processing elements in microwave photonics and optical RF processing, in particular in disciplines requiring low weight, compactness and fiber interconnection.


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