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An Experimental Study on the Reflection Characteristics of Laser Echo Light Waves
Published 2025-04-01“…Studying the reflection characteristics of laser echoes is of great significance to wireless optical communication systems. …”
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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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Static short-range laser circumferential detection using a transmissive-reflective optical architecture
Published 2025-07-01“…Abstract To address the problem of short-range laser circumferential detection, this paper proposes a static detection method based on a transmissive-reflective combined optical system, Building upon previous research on dynamic circumferential scanning mechanisms. …”
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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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Melt pool dynamics and pore formation in selective laser melting: Mechanisms and microstructural insights
Published 2025-06-01“…In the keyhole mode, protrusions on the front and rear keyhole walls, driven by recoil pressure and reflected laser rays, merge to trap gas, causing truncation and pore formation. …”
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A Rapidly Tunable Laser System for Measurements of NH<sub>2</sub> at 597 nm Behind Reflected Shock Waves
Published 2024-12-01“…Distributed feedback lasers, which feature rapid wavelength tunability, are not presently available in the yellow and orange spectral regions, impeding spectroscopic studies of short-lived species that absorb light in this range. …”
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Study on a DFB Laser Diode Based on Sampled Grating Technique for Suppression of the Zeroth Order Resonance
Published 2017-01-01“…A distributed feedback (DFB) semiconductor laser based on sampled grating with multiple sections, i.e., a straight, a bent, and a tilted waveguide, is proposed to suppress the <inline-formula><tex-math notation="LaTeX">$0{\rm{th}}$ </tex-math></inline-formula>-order resonance. …”
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Near-wall dynamics of single cavitation bubbles imaged by total internal reflection fluorescence
Published 2025-09-01“…This study introduces total internal reflection fluorescence (TIRF) as a method for investigating the dynamics of a single laser-induced cavitation bubble in water within a thin layer near a solid surface. …”
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Monolithically Integrated Multiwavelength Laser With Optical Feedback: Damped Relaxation Oscillation Dynamics and Narrowed Linewidth
Published 2018-01-01“…An InP-based, monolithically integrated multiwavelength laser with optical feedback is presented. We demonstrate the performance of the dual-wavelength operation. …”
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Impact of Spatial Hole Burning and Linewidth Enhancement Factor on Distributed-Feedback Quantum Cascade Lasers: A Comprehensive Design Analysis
Published 2024-01-01“…In this article, we use a time-domain traveling-wave approach with a coupled-mode theory to describe the dynamics of a mid-Infrared (MIR) Quantum Cascade Laser (QCL) in the Distributed-Feedback (DFB) configuration. …”
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Study of particle size distribution of environment certified reference material
Published 2017-05-01“…The multimodal distributions ofparticle sizes of investigated CRMs clearly reflect the differences in mineral and chemical compositions. …”
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Femtosecond laser-induced optical breakdown and cavitation dynamics in water imaged with an x-ray free-electron laser
Published 2025-07-01“…Specifically, we quantify the decrease of the expansion velocity with the number of auxiliary cavitation events due to a redistribution of the deposited laser energy. We also report events with (multi)filamentation reflecting instabilities in the initial distribution of the laser intensity upon formation of the plasma. …”
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Operando X‐Ray Tomoscopy of Laser Beam Welding
Published 2025-03-01“…Here, a recently developed X‐ray tomoscopy setup is applied, providing one hundred 3D images per second to capture the temporal evolution of the melt pool in an AlSi9Cu3(Fe) die‐casting while a laser beam advances. The number of pores, their size, shape and distribution are quantified with 10 ms time resolution and reflect a complex dynamic pattern. …”
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SOME ASPECTS OF SCANNING LASER OPHTHALMOSCOPY IN THE DIAGNOSTICS OF OPHTHALMOPATHOLOGY
Published 2017-10-01“…After the conducted research features and regularities of the reflectivity distribution of laser beams from the fundus structures are revealed. …”
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Wavelength Demodulating Algorithm of FBG Dynamic Tuned by DFB Laser
Published 2019-04-01“…The central wavelength of the reflecting spectra in FBG was obtained by the standard Fabry-Perot transmission spectra based on the law between the dynamic scanning wavelength and scanning time of Distributed Feedback laser (DFB). …”
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Thermal analysis of a reflection mirror by fluid and solid heat transfer method
Published 2024-11-01“…High-repetition-rate free-electron lasers impose stringent requirements on the thermal deformation of beamline optics. …”
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Analyzing the utilization of high-voltage electric fields for laser material processing
Published 2025-12-01“…However, process emissions such as the metal vapor plume pose a challenge, as they can impair the efficiency and precision of the laser process through reflection, absorption, and scattering. …”
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