Results 21 to 30 of about 3,944,107 (299)
Observation of Ultrashort Laser Pulse Evolution in a Silicon Photonic Crystal Waveguide
Micromachines, 2021 Using the sum frequency generation cross-correlation frequency-resolved optical gating (SFG-XFROG) measurement setup, we observed the soliton evolution of low energy pulse in an Si photonic crystal waveguide, and it exhibited the pulse broadening, blue ...
Xiaochun Wang +4 more
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Agronomy, 2022 Monitoring agricultural drought via ground hyper-spectral remote sensing has always been a hot topic in the fields of agriculture and meteorology.
Qiang Li, Maofang Gao, Zhao-Liang Li
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New Journal of Physics, 2020 In magnetic semiconductors the optical spectrum and, in particular, the absorption edge representing the band-gap are strongly affected by the onset of the magnetic order. This contribution to the band-gap energy has hitherto been described theoretically
D. Bossini +6 more
semanticscholar +1 more source
Anomalous blue-shift of terahertz whispering-gallery modes [PDF]
International Conference on Infrared, Millimeter, and Terahertz Waves, 2019 We report on the first demonstration of an anomalous blue-shift of whispering-gallery modes (WGMs) using metallic substrates. The results allow for frequency tuning of WGMs essential for numerous applications, and establish novel insights into the ...
D. Vogt +3 more
semanticscholar +1 more source
Rough initial data and the strength of the blue-shift instability on cosmological black holes with Λ > 0 [PDF]
Classical and quantum gravity, 2018 We consider the wave equation on Reissner–Nordström–de Sitter and more generally Kerr–Newman–de Sitter black hole spacetimes with . The strength of the blue-shift instability associated to the Cauchy horizon of these spacetimes has been the subject of ...
Mihalis Dafermos +1 more
semanticscholar +1 more source
Applied Sciences, 2019 Higher order plasmonic resonance modes and their frequency blue shifts in silver-coated silica nanoparticle antennas are studied. Synthesizing them with a wet chemistry method, silica (SiO2) nanoparticles were enclosed within silver shells with different
Atta Ur Rahman +7 more
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Applied Sciences, 2020 We experimentally measured the femtosecond pulse transmission through a silicon-on-insulator (SOI) nanowire waveguide under different temperatures and input pulse energy with a cross-correlation frequency-resolved optical gating (XFROG) measurement setup.
Xiaochun Wang +4 more
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Highly efficient XUV generation via high-order frequency mixing
New Journal of Physics, 2020 The efficient generation of the coherent XUV light via frequency conversion of intense laser drivers is a problem of both fundamental and technological importance.
M A Khokhlova, V V Strelkov
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Blue-light background impairs visual exogenous attention shift
Scientific Reports, 2023 Previous research into the effects of blue light on visual-spatial attention has yielded mixed results due to a lack of properly controlling critical factors like S-cone stimulation, ipRGCs stimulation, and color.
Chien-Chun Yang +2 more
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Response of Photonic Hydrogels of Homogeneous Particles to Uranyl Ions in Aqueous Solutions
Photonic Sensors, 2023 We study here the response of photonic hydrogels (PHs), made of photonic crystals of homogeneous silica particles in polyacrylamide hydrogels (SPHs), to the uranyl ions UO 2 2+ in aqueous solutions. It is found that the reflection spectra of the SPH show
R. G. Joshi +4 more
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