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High Reflectivity YDH/SiO2 Distributed Bragg Reflector for UV-C Wavelength Regime
Published 2018-01-01“…A distributed Bragg reflector (DBR) composed of Y<sub>2</sub>O<sub>3</sub>-doped HfO<sub>2</sub> (YDH)/SiO<sub>2</sub> layers with high reflectivity spectrum centered at a wavelength of ∼240 nm is fabricated using radio-frequency magnetron sputtering. …”
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Determination of Reactive RF-Sputtering Parameters for Fabrication of SiOx Films With Specified Refractive Index, for Highly Reflective SiOx Distributed Bragg Reflector
Published 2017-01-01“…The functionality of using the proposed method in fabricating optical components was further evaluated by fabricating a distributed Bragg reflector (DBR) consisting of 4.5 pairs, whose refractive indices of the layers were determined by the proposed method. …”
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A Novel Method for Characterization of Distributed Bragg Reflectors in Photonic Integrated Circuits
Published 2018-01-01“…We present a novel and accurate method for characterizing the reflection spectra of distributed Bragg reflectors using optical frequency domain reflectometry. …”
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Accumulation of Distributed Phase Shift in Distributed-Feedback Resonators
Published 2019-01-01“…Distributed-feedback waveguide lasers based on Bragg-grating resonators generate ultranarrow-linewidth emission. …”
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An Enhanced Distributed Acoustic Sensor With Large Temperature Tolerance Based on Ultra-Weak Fiber Bragg Grating Array
Published 2020-01-01“…An enhanced distributed optical fiber sensor based on broadband ultra-weak fiber Bragg grating array (UWFBG) for dynamic strain measurement with large temperature tolerance range was proposed and experimentally demonstrated. …”
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Modeling the Diffraction Efficiency of Reflective-Type PQ-PMMA VBG Using Simplified Rate Equations
Published 2018-01-01“…The concentration distributions were used to predict the diffraction efficiency of PQ-PMMA-based volume Bragg gratings (VBGs) by using the transfer matrix method. …”
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Multifunctional metamorphic III-V distributed Bragg reflectors grown on Si substrate for resonant cavity surface emitting devices
Published 2025-07-01“…Here, we propose multifunctional metamorphic In0.1Ga0.9As/AlAs distributed Bragg reflectors (DBRs) on Si which serve as a bottom mirror with a high reflectivity of 99.8% while simultaneously reducing the crystalline defect density by a factor of three, compared to GaAs/AlAs DBR on Si. …”
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Time-Division-Multiplexed Energy Harvesting From Quasi-Distributed Fiber Bragg Grating Arrays (FBGAs) Sensing Networks
Published 2025-01-01“…This work presents a new approach to energy harvesting (EH) from a quasi-distributed sensing network of fiber Bragg grating arrays (FBGAs). …”
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Enhancing the Light-Extraction Efficiency of an AlGaN Nanowire Ultraviolet Light-Emitting Diode by Using Nitride/Air Distributed Bragg Reflector Nanogratings
Published 2017-01-01“…Here, to enhance the LEE of the device, we demonstrate an AlGaN nanowire light-emitting diode (NW-LED) integrated with nitride/air distributed Bragg reflector (DBR) nanogratings. Compared to a control device (only mesa), the AlGaN NW-LED with the nitride/air DBR nanogratings exhibits enhancement in the light output power and external quantum efficiency (EQE) by a factor of ∼1.67. …”
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Optically pumped GaN-based vertical cavity surface emitting laser with strain-compensated AlGaN/InGaN distributed Bragg reflector
Published 2025-01-01“…We proposed a strain-compensated distributed Bragg reflector (DBR) with high reflectivity and a practical growth time. …”
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Artificial Intelligence‐Enhanced Metamaterial Bragg Multilayers for Radiative Cooling
Published 2025-02-01“…The original structure is made of SiO2/Si nanometer‐thick layers that make a Bragg mirror for wavelengths in the solar irradiance window (0.3–4 μm). …”
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Real-Time Train Wheel Condition Monitoring by Fiber Bragg Grating Sensors
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A High Performance Distributed Optical Fiber Sensor Based on Φ-OTDR for Dynamic Strain Measurement
Published 2017-01-01“…In this newly designed system, ultraweak fiber Bragg gratings (UWFBGs) are sparsely embedded in the sensing fiber. …”
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Monolithically Integrated Multiwavelength Laser With Optical Feedback: Damped Relaxation Oscillation Dynamics and Narrowed Linewidth
Published 2018-01-01“…This is due to the combined filtering functions of an arrayed waveguide grating and a distributed Bragg reflector. A method that makes use of weak optical feedback is demonstrated to improve the stability of each single-mode. …”
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Proposal for Slepian-States-Based DV- and CV-QKD Schemes Suitable for Implementation in Integrated Photonics Platforms
Published 2019-01-01“…Critically, generation, processing, and detection of Slepian states can be reliably implemented in an integrated quantum photonics platform, based on both reflective and transmissive waveguide Bragg gratings (WBGs). …”
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Fiber Bragg Grating Sensor Interrogation Using Tunable Erbium-Doped Fiber Ring Laser Source
Published 2021-04-01“…Fiber Bragg gratings (FBG) are ideal sensors for temperature, strain or vibration sensing applications with their advantages over conventional electronics sensor systems. …”
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High Performance Wide Angle DBR Design for Optoelectronic Devices
Published 2021-01-01“…To improve the performance of optoelectronic devices, a high performance wide angle SiO<sub>2</sub>/Ti<sub>3</sub>O<sub>5</sub> Distributed Bragg Reflector (DBR) mirror was designed and fabricated on double polished sapphire substrate. 17-pairs gradually varied DBR structure was applied in order to acquire a broad stopband reflectivity over 95% from 400 nm to 800 nm, covering the whole visible light region. …”
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Weak Fiber Bragg Grating Array-Based In Situ Flow and Defects Monitoring During the Vacuum-Assisted Resin Infusion Process
Published 2024-11-01“…The monitoring criteria were analyzed and the results were compared with the visual inspection, showing good agreement and indicating the ability of the fiber Bragg grating array. Finally, defects including dry spots and voids were introduced and reflected in the maximum changed strains of FBGs due to the smaller stress relaxation, indicating the potential to characterize the local flow state and permeabilities experimentally based on these quasi-distributed sensing methods.…”
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