Results 161 to 170 of about 153,767 (320)
Scattering by a semi-infinite impedance strip in a waveguide
, 1965 D. S. Karjala, R. Mittra
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Advanced Optical Materials, EarlyView.This study reveals the critical influence of film thickness and excitation wavelength on the ASE threshold in metal halide perovskites. By optimizing these factors, the ASE threshold is significantly reduced, providing key insights into optical confinement and carrier distribution for advancing electrically pumped perovskite lasers.
Yulin Mao +7 more
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Characteristics of waveguides for long-distance transmission
, 1961 A.E. Karbowiak, L. Solymar
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Advanced Optical Materials, EarlyView.Curcuminoid boron difluoride dyes containing triphenylamine units are prepared and their photophysical and electrochemical properties are investigated. These new light‐emitting dyes are used in organic light‐emitting diodes (OLEDs) emitting at 800 nm with 1% external quantum efficiency, and show low threshold amplified spontaneous emission in thin ...
Anthony D'Aléo +11 more
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Demonstration of a Graphene Adjustable‐Barriers Phototransistor with Tunable Ultra‐High Responsivity
Advanced Optical Materials, EarlyView.A novel graphene‐based phototransistor with a tunable ultra‐high responsivity of 1.7 x 107 AW−1 has been demonstrated. Due to the selected material combination of amorphous silicon, graphene and n‐germanium, the device is potentially capable of dual‐band detection in the VIS‐IR range.
Carsten Strobel +5 more
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Excitation of a Circular Cylindrical Cavity by a Circular Waveguide
, 1964 C. Bjerke, J. Van Bladel
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High Sensitivity Spin Defects in Carbon Implanted Diamond
Advanced Optical Materials, EarlyView.Self‐interstitial spin defects in diamond are fabricated in diamond by high energy carbon irradiation. Along with a systematic characterization of their properties, these spin defects demonstrate high sensitivities surpassing previous studies and coherent manipulation of spin states.
Xingni Chai +6 more
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Advanced Photonics Research, EarlyView.This work demonstrates the use of reactive laser annealing to selectively tune the epsilon‐near‐zero condition of tin‐doped indium oxide patches integrated in silicon waveguides. This postgrowth annealing technique enables flexible control over the optical constants of transparent conducting oxides (TCOs) at critical telecom wavelengths, paving the way
Juan Navarro‐Arenas +6 more
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