Air Waveguide from “Donut” Laser Beams
نویسندگان
چکیده
منابع مشابه
Enhanced terahertz wave emission from air-plasma tailored by abruptly autofocusing laser beams
KANG LIU, ANASTASIOS D. KOULOUKLIDIS, DIMITRIOS G. PAPAZOGLOU, STELIOS TZORTZAKIS, AND XI-CHENG ZHANG* The Institute of Optics, University of Rochester, 275 Hutchison Road, Rochester, New York 14627, USA Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O. Box 1527, 71110 Heraklion, Greece Department of Material Science and Technology, University of C...
متن کاملMonoenergetic Proton Beams from Laser Driven Shocks
Laser driven ion acceleration (LDIA) has the potential to deliver compact and affordable accelerators for applications in many fields of science and medicine. Specifically, radiotherapy of cancerous tumors requires ion energies in the range of 200-300 MeV/a.m.u. and with energy spreads on the order of 5%, parameters thus far beyond the LDIA experimental results using the most powerful lasers in...
متن کاملLaser-based sensor for detection of hazardous gases in the air using waveguide CO2 laser.
A spectrometer based on the principle of photoacoustic spectroscopy has been developed recently at our laboratory for the detection of hazardous gases such as O3, C2H4, SO2, NO2 and SF6. In most of our earlier works, we employed a mechanical chopper to modulate the laser beam and this chopper modulation has the crucial disadvantage of instability in the chopper frequency. Even a minor shift of ...
متن کاملAiry beams from a microchip laser.
It is theoretically shown that an end-pumped microchip laser formed by a thin laser crystal with plane-plane but slightly tilted facets can emit, under appropriate pumping conditions and near a crystal edge, a truncated self-accelerating Airy output beam.
متن کاملUsing of Broadened Asymmetric Waveguide Structure for 980nm Diode Laser
Laser diode beam divergence is the main parameter for beam shaping and fiber optic coupling. Increasing the waveguide layer thickness is the conventional method to decrease the beam divergence. In this paper, the broadened asymmetric waveguide is introduced to decrease the divergence without increasing the optical power. The asymmetric waveguide was used to shift the vertical optical field to n...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics
سال: 2023
ISSN: ['2624-8174']
DOI: https://doi.org/10.1103/physics.16.11