Zobrazeno 1 - 10
of 240
pro vyhledávání: '"Simpson, Robert E."'
The optical properties of phase-change materials (PCM) can be tuned to multiple levels by controlling the transition between their amorphous and crystalline phases. In multi-material PCM structures, the number of discrete reflectance levels can be in
Externí odkaz:
http://arxiv.org/abs/2308.04295
Publikováno v:
Adv. Funct. Mater. 2024, 2406800
Biological systems evolve with minimum metabolic costs and use common components, and they represent guideposts toward a paradigm of manufacturing that is centered on minimum energy, local resources, and ecological integration. Here, a new method of
Externí odkaz:
http://arxiv.org/abs/2210.01347
Autor:
Ning, Jing, Zhou, Xilin, Wang, Yunzheng, Yagi, Takashi, Kalikka, Janne, Teo, Siew Lang, Song, Zhitang, Bosman, Michel, Simpson, Robert E.
Phase change memory devices are typically reset by melt-quenching a material to radically lower its electrical conductance. The high power and concomitantly high current density required to reset phase change materials is the major issue that limits
Externí odkaz:
http://arxiv.org/abs/2209.15227
Autor:
Moitra, Parikshit, Wang, Yunzheng, Liang, Xinan, Lu, Li, Poh, Alyssa, Mass, Tobias W. W., Simpson, Robert E., Kuznetsov, Arseniy I., Paniagua-Dominguez, Ramon
All-dielectric metasurfaces provide unique solutions for advanced wavefront manipulation of light with complete control of amplitude and phase at sub-wavelength scales. One limitation, however, for most of these devices is the lack of any post-fabric
Externí odkaz:
http://arxiv.org/abs/2206.07628
Autor:
Ning, Jing, Wang, Yunzheng, Teo, Ting Yu, Huang, Chung-Che, Zeimpekis, Ioannis, Morgan, Katrina, Teo, Siew Lang, Hewak, Daniel W., Bosman, Michel, Simpson, Robert E.
The switchable optical and electrical properties of phase change materials (PCMs) are finding new applications beyond data storage in reconfigurable photonic devices. However, high power heat pulses are needed to melt-quench the material from crystal
Externí odkaz:
http://arxiv.org/abs/2202.04699
Publikováno v:
In Medical Image Analysis May 2024 94
Autor:
Lu, Li, Dong, Zhaogang, Tijiptoharsono, Febiana, Ng, Ray Jia Hong, Wang, Hongtao, Rezaei, Soroosh Daqiqeh, Wang, Yunzheng, Leong, Hai Sheng, Yang, Joel K. W., Simpson, Robert E.
Dielectric optical nanoantennas play an important role in color displays, metasurface holograms, and wavefront shaping applications. They usually exploit Mie resonances as supported on nanostructures with high refractive index, such as Si and TiO2. H
Externí odkaz:
http://arxiv.org/abs/2107.07081
Chalcogenide phase change materials (PCMs) have been extensively applied in data storage, and they are now being proposed for high resolution displays, holographic displays, reprogrammable photonics, and all-optical neural networks. These wide-rangin
Externí odkaz:
http://arxiv.org/abs/2107.02035
We designed and demonstrated a multi-spectral programmable perfect absorber that exploits two different phase-change materials. This programmability is possible by resonantly coupling two phase change materials, a Ge2Sb2Te5 layer to vanadium dioxide
Externí odkaz:
http://arxiv.org/abs/2106.06940
Autor:
Yu, Ting, Ma, Xiaoxuan, Pastor, Ernest, George, Jonathan K., Wall, Simon, Miscuglio, Mario, Simpson, Robert E., Sorger, Volker J.
Deeplearning algorithms are revolutionising many aspects of modern life. Typically, they are implemented in CMOS-based hardware with severely limited memory access times and inefficient data-routing. All-optical neural networks without any electro-op
Externí odkaz:
http://arxiv.org/abs/2102.10398