Results 11 to 20 of about 1,945,269 (285)
Limits to Maximum Absorption Length in Waveguide Photodiodes
IEEE Photonics Journal, 2011 The maximum photocurrent, power dissipation, and linearity of waveguide photodiodes are limited by the length over which the input optical power is absorbed.
Shannon M. Madison +5 more
doaj +1 more source
Double tungstate lasers: From bulk toward on-chip integrated waveguide devices [PDF]
, 2007 It has been recognized that the monoclinic double tungstates $KY{(WO_4)}_2$, $KGd{(WO_4)}_2$, and $KLu{(WO_4)}_2$ possess a high potential as rare-earth-ion-doped solid-state laser materials, partly due to the high absorption and emission cross sections ...
Borca, Camelia N. +7 more
core +2 more sources
Polarization-Maintaining Single-Frequency Fiber Laser With Quadruple Wavelengths at the C-Band
IEEE Photonics Journal, 2018 In this paper, a polarization-maintaining quad-wavelength (QW) single-frequency fiber laser (SFFL) at the C-band with the novel and compact structure is demonstrated. Applying the rate equations and multiple coupled nonlinear Schrödinger equations,
Kunyi Li +10 more
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Metamaterial emitter for thermophotovoltaics stable up to 1400 °C
Scientific Reports, 2019 High temperature stable selective emitters can significantly increase efficiency and radiative power in thermophotovoltaic (TPV) systems. However, optical properties of structured emitters reported so far degrade at temperatures approaching 1200 °C due ...
Manohar Chirumamilla +9 more
doaj +1 more source
Transfer Printing of Photonic Nanostructures to Silicon Integrated Circuits [PDF]
, 2018 Optical systems require the integration of technologies fabricated on different materials. We use a transfer printing technique to integrate pre-processed III-V, polymer and silicon membrane devices onto passive optical circuits with nano-metric ...
Guilhabert, Benoit +6 more
core +1 more source
A multicomponent model of the infrared emission from Comet Halley [PDF]
, 1988 A model based on a mixture of coated silicates and amorphous carbon grains produces a good spectral match to the available Halley data and is consistent with the compositional and morphological information derived from interplanetary dust particle ...
Allamandola, Louis J. +4 more
core +2 more sources
Magneto-controlled nonlinear optical materials
, 2004 We exploit theoretically a magneto-controlled nonlinear optical material which contains ferromagnetic nanoparticles with a non-magnetic metallic nonlinear shell in a host fluid.
J. P. Huang, K. W. Yu, Landau L. D.
core +1 more source
Optical excitations in hexagonal nanonetwork materials
, 2002 Optical excitations in hexagonal nanonetwork materials, for example, Boron-Nitride (BN) sheets and nanotubes, are investigated theoretically. The bonding of BN systems is positively polarized at the B site, and is negatively polarized at the N site ...
A. Mielke +12 more
core +3 more sources
Divalent europium-doped near-infrared-emitting phosphor for light-emitting diodes
Nature Communications, 2019 Here the authors report a near-infrared K3LuSi2O7:Eu2+ phosphor for non-visible light source application. The selective site occupation of Eu2+ in LuO6 and K2O6 polyhedrons is found to be responsible for the light emission and these insights could serve ...
Jianwei Qiao +4 more
doaj +1 more source
Materials Design using Correlated Oxides: Optical Properties of Vanadium Dioxide
, 2008 Materials with strong electronic Coulomb interactions play an increasing role in modern materials applications. "Thermochromic" systems, which exhibit thermally induced changes in their optical response, provide a particularly interesting case.
Blümer N. +11 more
core +1 more source