Results 111 to 120 of about 42,237 (297)

Switchable Terahertz Beam Steering with Near‐Perfect Ordinary Transmission

Advanced Photonics Research, EarlyView.
This study introduces a reconfigurable metasurface that enables switchable terahertz beam steering upon actuation by a global temperature change. At room temperature, it achieves a true “OFF” state with nearly 100% transmission, behaving as if the metasurface is not present, thereby not distorting incoming light.
Zhixiang Huang, Jie Ji, Ke Ma, Eric Herrmann, Riad Yahiaoui, S M Jahadun Nobi, Fei Ding, Peter Uhd Jepsen, Thomas A. Searles, Binbin Zhou, Zizwe Chase, Xi Wang   +11 more
wiley   +1 more source

EFFECTS OF ULTRAVIOLET AND VISIBLE LIGHT ON SYNTHETIC SAPPHIRE [PDF]

, 1976
N. Kristianpoller, A. Rehavi
openalex   +1 more source

Design and Characterization of Low‐Threshold InP Nanowire Photonic Crystal Surface‐Emitting Lasers

Advanced Photonics Research, EarlyView.
The lasing performance of nanowire (NW) photonic crystal surface‐emitting lasers (PCSELs) is highly sensitive to changes in the photonic crystal lattice constant and the NW diameter. This study systematically investigates the threshold power and the threshold gain for different PCSEL geometries.
Navoda Jayawardana, Matthew T. Larson, Chia‐Wei Tu, Naiyin Wang, Wei Wen Wong, Hark Hoe Tan, Chennupati Jagadish, Heidrun Schmitzer, Hans‐Peter Wagner   +8 more
wiley   +1 more source

Influence of Synthesis Parameters on Structure and Characteristics of the Graphene Grown Using PECVD on Sapphire Substrate

Nanomaterials
The high surface area and transfer-less growth of graphene on dielectric materials is still a challenge in the production of novel sensing devices. We demonstrate a novel approach to graphene synthesis on a C-plane sapphire substrate, involving the ...
Šarūnas Jankauskas, Šarūnas Meškinis, Nerija Žurauskienė, Asta Guobienė   +3 more
doaj   +1 more source

Sapphires from Australia [PDF]

, 1985
Terrence Coldham
openalex   +1 more source

Realization of Aqueous Processed LiNi0.5Mn1.5O4 through the pH Optimization of Polyacrylate Binders

Advanced Sustainable Systems, EarlyView.
Partly neutralized polyacrylate binders enable aqueous processing of LiNi0.5Mn1.5O4 (LNMO) cathodes by buffering the slurry pH within the aluminum current collector's passivation region. Optimal performance is achieved at binder pH 5, matching polyvinylidene difluoride (PVDF)‐based systems in LNMO‖Li4Ti5O12 (LTO) full cells, while higher pH leads to ...
Killian Stokes‐Rodriguez, Julia Lütke Fremann, Anders Brennhagen, Alexey Koposov, Julian R. Tolchard, Annett Thøgersen, Frode Håskjold Fagerli, Nils Peter Wagner   +7 more
wiley   +1 more source

Superconductor-sapphire cavity for an all-cryogenic SCSO [PDF]

, 1983
D. M. Strayer, G.J. Dick, E. Tward
openalex   +1 more source

VOx‐Based Non‐Volatile Radio‐Frequency Switches for Reconfigurable Filter

Advanced Science, EarlyView.
Vanadium oxide‐based memristor devices achieve high performance for next‐generation non‐volatile memory and RF switches. These devices demonstrate a cutoff frequency of ≈4.5 THz, low insertion loss (<0.46 dB), and high isolation (>20 dB) from 0.1 to 20 GHz with stable operation extended to 67 GHz.
Dabin Seo, Dahyeon Kim, Jiyeon Ryu, Changwoo Pyo, Seungchan Lee, Tae‐Sik Yoon, Myungsoo Kim   +6 more
wiley   +1 more source

Color Mechanism Analysis and Origin Comparison of Pink-Purple Sapphires from Vietnam and Madagascar

Crystals
Extensive research has already been conducted on sapphires, yet there remains a notable absence of methods available to identify the provenance of pink-purple sapphires, particularly those originating from Vietnam and Madagascar. This study examined pink-
Qiurong Guo, Pengyu Li, Mingying Wang, Siyi Zhao, Sichun Yang, Guanghai Shi   +5 more
doaj   +1 more source

Erratum: Recrystallization of silicon‐on‐sapphire by cw Ar laser irradiation: Comparison between the solid‐ and the liquid‐phase regimes [PDF]

, 1981
I. Golecki, G. Kinoshita, A. Gat, B.M. Paine   +3 more
openalex   +1 more source