Results 21 to 30 of about 1,107 (175)
Chaotic microlasers caused by internal mode interaction for random number generation
Light: Science & Applications, 2022 Chaotic output of a self-chaotic microlaser with the typical wide lasing spectra, as shown, was applied for high speed random number generation.
Chun-Guang Ma +4 more
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Orbital Angular Momentum Microlaser [PDF]
Conference on Lasers and Electro-Optics, 2016 Microlasers with a twist Structured light, in the form of helical wavefronts, provides an additional degree of freedom to encode information for optical communications. Creating light beams with the desired amount of optical angular momentum, or twist, has usually been achieved with bulk optic devices. Miao et al.
Pei, Miao +6 more
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Möbius strip microlasers [PDF]
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2021 Direct laser writing [1] enables the fabrication of almost arbitrary three-dimensional (3d) microstructures with feature sizes of less than 1 µ m and allows to create 3d organic microlasers such as pyramids with high quality and low surface roughness [2] .
Stefan Bittner +11 more
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International Journal of Extreme Manufacturing, 2023 Lead halide perovskites have attracted considerable attention as potential candidates for high-performance nano/microlasers, owing to their outstanding optical properties. However, the further development of perovskite microlaser arrays (especially based
Wangqi Mao +7 more
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Impact of Cavity Geometry on Microlaser Dynamics
Physical Review Letters, 2023 We experimentally investigate spatio-temporal lasing dynamics in semiconductor microcavities with various geometries, featuring integrable or chaotic ray dynamics. The classical ray dynamics directly impacts the lasing dynamics, which is primarily determined by the local directionality of long-lived ray trajectories.
Kyungduk Kim +5 more
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Laser particles with omnidirectional emission for cell tracking
Light: Science & Applications, 2021 The ability to track individual cells in space over time is crucial to analyzing heterogeneous cell populations. Recently, microlaser particles have emerged as unique optical probes for massively multiplexed single-cell tagging.
Shui-Jing Tang +6 more
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CHAOTIC MICROLASERS BASED ON DYNAMICAL LOCALIZATION [PDF]
International Journal of Bifurcation and Chaos, 2004 We report the first direct observation of lasing action from a dynamically localized mode in a microdisk resonator with rough boundary. In contrast to microlasers based on stable ray trajectories, the performance of our device is robust with respect to the boundary roughness and corresponding ray chaos, taking advantage of Anderson localization in ...
Hui Cao +3 more
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Nature Communications, 2021 Upconversion microlasers present a lot of advantages but also require high pumping powers. Here the authors present a high-performing microlaser based on anti-Stokes-shift in upconversion nanoparticles synthesized using a technique of liquid quenching.
Byeong-Seok Moon +5 more
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Study of the Quantum Efficiency of Semiconductor Quantum Dot Pulsed Micro-Laser [PDF]
Journal of Optoelectronical Nanostructures, 2021 تعامل میدان الکترومغناطیسی حفره با انتشار دهنده دو سطح توسط الکترودینامیک کوانتوم حفره (CQED) توصیف می شود. میکرو لیزر پالسی آرایه ای از نقاط کوانتومی نیمه هادی (QD) است که در یک میکرو حفره نوری تعبیه شده است.
Mohammad Reza Mohebbifar
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The wonders of the microlaser [PDF]
Nature, 1995 A group at MIT has managed to build and operate a laser that functions as such even when the average number of photons in the optical cavity is less than one.
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