Results 31 to 40 of about 153,313 (366)
Use of diffuse reflections in tunable diode laser absorption spectroscopy: implications of laser speckle for gas absorption measurements [PDF]
, 2008 We report the effects of self-mixing interference on gas detection using tunable diode laser spectroscopy. For very weak feedback, the laser diode output intensity gains a sinusoidal modulation analogous to that caused by low finesse etalons in the ...
Hodgkinson, Jane +2 more
core +1 more source
Diode-pumped garnet crystal waveguide structures fabricated by pulsed laser deposition [PDF]
, 2006 We report progress with diode-pumping of garnet crystal waveguide structures fabricated by PLD. Lasing has been achieved in a single-layer Nd:GGG film, and a four-layer structure with a Nd:GSGG core is currently undergoing laser ...
Shepherd, D.P. +9 more
core +1 more source
Dense wavelength multiplexing for a high power diode laser
, 2022 Paper 61040OAt present methods of polarization and wavelength multiplexing with dielectric coatings are used to increase the brightness of diode lasers.
Traub, M. +3 more
core +1 more source
COMPACT PICOSECOND DIODE LASERS
Instruments and Experimental Techniques, 2022 This article presents the electrical circuit, a description of the design, and results of measurements of the radiative watt–ampere and time characteristics of compact inexpensive emitters based on commercial laser diodes with wavelengths from 405 to 850 nm, which operate in the picosecond (70–180 ps) and nanosecond (0.69–1.2 ns) modes.
Voropai, E. S. +5 more
openaire +2 more sources
Applied Sciences, 2023 Background: Persistent bacterial infections caused by biofilm-associated Enterococcus faecalis are a global public health concern. This study aims to compare the biofilm removal effects of methylene blue (MB) or hydrogen peroxide (HP) mediated ...
Shima Afrasiabi +2 more
doaj +1 more source
Wide-bandwidth mode-hop-free tuning of extended-cavity GaN diode lasers
, 2005 We present a new approach for extended-cavity diode-laser tuning to achieve wide mode-hop-free tuning ranges. By using a multiple piezoactuated grating mount, the cavity length and grating angle in the laser can be adjusted independently, allowing mode ...
Burns, I.S., Kaminski, C.F., Hult, J.
core +1 more source
Compact high-power diode laser pump modules for intersatellite communications
, 2022 S.128-134High reliable diode laser pump modules are essential for free-space optical telecommunications. Besides the reliability, low mass and small dimensions, radiation-hardness and low power-consumption are requirements to be met for space ...
Hoffmann, H.-D. +3 more
core +1 more source
FEBS Letters, EarlyView.Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara +3 more
wiley +1 more source
Bioengineering, 2019 The aim of the study is to test the application of different laser wavelengths, with and without different photosensitizing dyes on different types of cultures. Laser irradiation was realized on Streptococcus mutans in both solid and liquid culture media
Elisabetta Merigo +5 more
doaj +1 more source
Effect of Three Wavelengths of Diode Laser on the Efficacy of Bleaching of Stained Teeth
Frontiers in Dentistry, 2020 Objectives: Light irradiation and heat have been used to accelerate the process of tooth bleaching. This study aimed to assess the efficacy of conventional bleaching compared to laser-bleaching using three different wavelengths of diode lasers ...
Reza Saeedi +4 more
doaj +1 more source