Results 11 to 20 of about 693,236 (350)
High Power Laser Science and Engineering, 2023 A high-energy, alignment-insensitive, injection-seeded Q-switched Ho:yttrium aluminum garnet (YAG) single-frequency laser is developed. Both the slave Q-switched laser and the seed laser are Ho:YAG ring lasers based on a pair of corner cubic reflectors ...
Dong Yan +8 more
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All-Solid-State Optical Phased Arrays of Mid-Infrared Based Graphene-Metal Hybrid Metasurfaces
Nanomaterials, 2021 Optical phased arrays (OPAs) are essential optical elements in applications that require the ability to manipulate the light-wavefront, such as beam focusing and light steering.
Yue Wang +6 more
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Research of Distance-Intensity Imaging Algorithm for Pulsed LiDAR Based on Pulse Width Correction
Remote Sensing, 2022 Walking error has been problematic for pulsed LiDAR based on a single threshold comparator. Traditionally, walk error must be suppressed by some time discrimination methods with extremely complex electronic circuits and high costs.
Shiyu Yan +4 more
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Tunable graphene phononic crystal [PDF]
Nano Letters, 2020 Abstract In the field of phononics, periodic patterning controls vibrations and thereby the flow of heat and sound in matter. Bandgaps arising in such phononic crystals realize low-dissipation vibrational modes and enable applications towards mechanical qubits, efficient waveguides, and state-of-the-art sensing.
Jan N. Kirchhof +6 more
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High-sensitivity distributed dynamic strain sensing by combining Rayleigh and Brillouin scattering
Opto-Electronic Advances, 2020 The phase-sensitive optical time-domain reflectometry (φ-OTDR) is a good candidate for distributed dynamic strain sensing, due to its high sensitivity and fast measurement, which has already been widely used in intrusion monitoring, geophysical ...
Wang Benzhang +5 more
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A Calibration Method for Time Dimension and Space Dimension of Streak Tube Imaging Lidar
Applied Sciences, 2023 Owing to the special working systems of streak tube imaging lidar (STIL), the time and space dimensions are coupled together on the streak images.
Zhaodong Chen +7 more
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Tunable microfluidic microlenses [PDF]
Applied Optics, 2005 A novel type of liquid microlens, bounded by a microfabricated, distensible membrane and activated by a microfluidic liquid-handling system, is presented. By use of an elastomer membrane fabricated by spin coating onto a dry-etched silicon substrate, the liquid-filled cavity acts as a lens whereby applied pressure changes the membrane distension and ...
Werber, Armin, Zappe, Hans
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Jamming with Tunable Roughness [PDF]
Physical Review Letters, 2020 We introduce a new model to study the effect of surface roughness on the jamming transition. By performing numerical simulations, we show that for a smooth surface, the jamming transition density and the contact number at the transition point both increase upon increasing asphericity, as for ellipsoids and spherocylinders.
Ikeda, Harukuni +3 more
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Sensors, 2021 Combining the merits of non-contact measurement and high sensitivity, the quartz-enhanced photothermal spectroscopy (QEPTS) technique is suitable for measuring acid gases such as hydrogen chloride (HCl).
Yufei Ma +4 more
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Demonstration of multi-pass amplification of 46.9 nm laser pumped by capillary discharge
Matter and Radiation at Extremes, 2023 Using a plane–plane resonator composed of silicon carbide mirrors, we achieve for the first time multi-pass amplification of a 46.9 nm laser pumped by capillary discharge.
Dongdi Zhao +4 more
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