Results 31 to 40 of about 256,237 (204)
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
Noise equivalent circuit of a semiconductor laser diode [PDF]
, 1982 The noise equivalent circuit of a semiconductor laser diode is derived from the rate equations including Langevin noise sources. This equivalent circuit allows a straightforward calculation of the noise and modulation characteristics of a laser diode ...
Harder, Christoph +4 more
core +1 more source
Optical-trapping micromanipulation using 780-nm diode lasers [PDF]
, 1993 We have designed and implemented an optical-trapping configuration that uses near-infrared laser diodes. The highly divergent output beam of the diode laser was collimated by using only one aspheric compact disc lens.
Bakker Schut, T.C. +3 more
core +8 more sources
, 2011 A phase modulated RF current source is applied to an injection locked diode laser operating at $780\unit{nm}$. This produces tunable phase modulated sidebands of the laser suitable for stabilizing the length of an optical transfer cavity using the Pound ...
Burgess, I. B. +4 more
core +1 more source
International Journal of Dentistry, 2021 Aim of the Study. This study aimed to compare the effectiveness of diode laser (980 nm) and erbium-YAG laser (2940 nm) for gum depigmentation. Background.
Zaid Kamel Jnaid Harb +2 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
Means for phase locking the outputs of a surface emitting laser diode array [PDF]
, 1987 An array of diode lasers, either a two-dimensional array of surface emitting lasers, or a linear array of stripe lasers, is phase locked by a diode laser through a hologram which focuses the output of the diode laser into a set of distinct, spatially ...
Lesh, James R.
core +1 more source
Low power laser generated ultrasound : signal processing for time domain data acquisition [PDF]
, 2001 The use of low power modulated laser diode systems has previously been established as a suitable method for non-destructive laser generation of ultrasound.
Cleary, A. +6 more
core +2 more sources
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
Management of Chronic Periodontitis Using Chlorhexidine Chip and Diode Laser-A Clinical Study [PDF]
Journal of Clinical and Diagnostic Research, 2016 Introduction: The use of adjuncts like chlorhexidine local delivery and diode laser decontamination have been found to improve the clinical outcomes of scaling and root planing in non-surgical periodontal therapy in patients with chronic periodontitis.
Kachapilly Arun Jose +5 more
doaj +1 more source