Results 11 to 20 of about 164,526 (254)

Photochemical Method for Laser Absorption

open access: yesNanomaterials, 2022
During the laser application process, laser energy is usually converted into heat energy, causing high temperature, which affects the (high-speed) aircraft in routine flight.
Weiwei Tang   +4 more
doaj   +1 more source

Imaging-based optical barcoding for relative humidity sensing based on meta-tip

open access: yesNanophotonics, 2021
In a wide range of applications such as healthcare treatment, environmental monitoring, food processing and storage, and semiconductor chip manufacturing, relative humidity (RH) sensing is required.
Liu Yin   +6 more
doaj   +1 more source

Realizing depth measurement and edge detection based on a single metasurface

open access: yesNanophotonics, 2023
How to simultaneously obtain the depth, edge, and other light information of the scene to accurately perceive the physical world is an important issue for imaging systems.
Yang Siwen   +10 more
doaj   +1 more source

Extreme Sub-Wavelength Structure Formation from Mid-IR Femtosecond Laser Interaction with Silicon

open access: yesNanomaterials, 2021
Mid-infrared (MIR) wavelengths (2–10 μμm) open up a new paradigm for femtosecond laser–solid interactions. On a fundamental level, compared to the ubiquitous near-IR (NIR) or visible (VIS) laser interactions, MIR photon energies render semiconductors to ...
Kevin Werner, Enam Chowdhury
doaj   +1 more source

Advanced LIGO Laser Systems for O3 and Future Observation Runs

open access: yesGalaxies, 2020
The advanced LIGO gravitational wave detectors need high power laser sources with excellent beam quality and low-noise behavior. We present a pre-stabilized laser system with 70 W of output power that was used in the third observing run of the advanced ...
Nina Bode   +13 more
doaj   +1 more source

High-Q MEMS Resonators for Laser Beam Scanning Displays

open access: yesMicromachines, 2012
This paper reports on design, fabrication and characterization of high-Q MEMS resonators to be used in optical applications like laser displays and LIDAR range sensors.
Ulrich Hofmann   +2 more
doaj   +1 more source

Theoretical Study of the Efficient Ion Acceleration Driven by Petawatt-Class Lasers via Stable Radiation Pressure Acceleration

open access: yesApplied Sciences, 2022
Laser-driven radiation pressure acceleration (RPA) is one of the most promising candidates to achieve quasi-monoenergetic ion beams. In particular, many petawatt systems are under construction or in the planning phase.
Meng Liu   +3 more
doaj   +1 more source

Comparative Performance Analysis of Femtosecond-Laser-Written Diode-Pumped Pr:LiLuF4 Visible Waveguide Lasers

open access: yesPhotonics, 2023
In this work, we present the operation of a femtosecond-laser-written diode-pumped visible waveguide laser based on praseodymium-doped lithium lutetium fluoride.
Davide Baiocco   +4 more
doaj   +1 more source

Fast Simultaneous CO2 Gas Temperature and Concentration Measurements by Quantum Cascade Laser Absorption Spectroscopy

open access: yesApplied Sciences, 2022
A quantum cascade laser-based sensing technique is presented which allows for in situ high-precision temperature and/or CO2 concentration measurements of gases in the room temperature regime with sampling rates up to about 40 kHz.
Frank Herklotz   +5 more
doaj   +1 more source

Inspection of Trivalent Chromium Conversion Coatings Using Laser Light: The Unexpected Role of Interference on Cold-Rolled Aluminium

open access: yesSensors, 2020
Laser-based inspection of trivalent chromium conversion coatings on rough, cold-rolled aluminium substrates is studied from a basic physics perspective by means of angle and wavelength dependent measurements.
Joerg Rischmueller   +5 more
doaj   +1 more source

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