Theoretical study of leaky-mode resonant gratings for improving the absorption efficiency of the uncooled mid-infrared photodetectors
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Physics"
DOI: 10.1063/1.5040373
Abstract: In this work, we studied a new theoretical approach to enhance the PbSe-based uncooled photodetector's performance in the mid-infrared (mid-IR) wavelength region. A one-dimensional grating layer was proposed to be implemented and inserted under the… read more here.
Keywords: absorption; pbse; layer; mid infrared ... See more keywords
Sensitivity analysis of leaky-mode dispersion curves for horizontal stratified models
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DOI: 10.1093/gji/ggaf051
Abstract: The leaky-mode dispersion extracted from seismograms and noise cross-correlation functions has gained lots of attention in recent years. It has been reported that leaky modes can provide constraints for subsurface structures, especially for P-wave velocities,… read more here.
Keywords: leaky modes; leaky mode; sensitivity; mode dispersion ... See more keywords
Leaky Mode Combs in Tilted Fiber Bragg Grating
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DOI: 10.1109/jlt.2019.2947251
Abstract: Leaky modes in tilted fiber Bragg grating (TFBG) present attractive properties but it has been generally underestimated and ignored. Herein, we systematically investigate the enhancement mechanism and the sensing performance of the enhanced leaky mode… read more here.
Keywords: elmr combs; tilted fiber; fiber bragg; leaky mode ... See more keywords
Backside emission leaky-mode modulators.
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DOI: 10.1364/oe.25.020622
Abstract: We report on an advancement to leaky-mode modulators that allows for backside emission from the device. This is accomplished by adding a high spatial frequency surface relief grating (~300 nm period) to the backside of… read more here.
Keywords: emission leaky; leaky mode; mode modulators; backside emission ... See more keywords
Ridge waveguide couplers with leaky mode resonator-like wavelength responses.
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DOI: 10.1364/oe.473131
Abstract: Integrated photonic resonators based on bound states in the continuum (BICs) on the silicon-on-insulator (SOI) platform have the potential for novel, mass-manufacturable resonant devices. While the nature of BIC-based ridge resonators requires the resonators to… read more here.
Keywords: ridge waveguide; leaky mode; couplers leaky; resonator ... See more keywords
Paired leaky mode spatial light modulators with a 28° total deflection angle.
Sign Up to like & getrecommendations! Published in 2017 at "Optics letters"
DOI: 10.1364/ol.42.001345
Abstract: In this Letter, we present a paired set of waveguide spatial light modulators (SLMs) capable of a maximum light deflection nearing 28° for red. This deflection, which is several times larger than the angular sweep… read more here.
Keywords: light modulators; spatial light; deflection; paired leaky ... See more keywords
Enhanced broadband terahertz radiation generation near the reststrahlen band in sub-wavelength leaky-mode LiNbO3 waveguides.
Sign Up to like & getrecommendations! Published in 2018 at "Optics letters"
DOI: 10.1364/ol.43.001694
Abstract: The generation of terahertz (THz) radiation in a compact geometry is crucial for the implementation of on-chip, coherent THz radiation sources. Here, via numerical time-domain simulations, we show that LiNbO3 (LN) waveguides having sub-wavelength core… read more here.
Keywords: sub wavelength; thz; reststrahlen band; leaky mode ... See more keywords