Results 11 to 20 of about 153,313 (366)

Optical trapping with superfocused high-M2 laser diode beam [PDF]

open access: yes, 2015
Many applications of high-power laser diodes demand tight focusing. This is often not possible due to the multimode nature of semiconductor laser radiation possessing beam propagation parameter M2 values in double-digits.
Kuchinskii, V. I.   +36 more
core   +1 more source

Postoperative assessment of diode laser zinc oxide eugenol and mineral trioxide aggregate pulpotomy procedures in children: A comparative clinical study

open access: yesJournal of Indian Society of Pedodontics and Preventive Dentistry, 2018
Aim: The present study is an attempt to compare and evaluate postoperative assessment of diode laser zinc oxide eugenol (ZOE) pulpotomy and diode laser mineral trioxide aggregate (MTA) pulpotomy procedures in children.
Bang Pratima   +6 more
doaj   +1 more source

Bactericidal effect of a diode laser on Enterococcus faecalis in human primary teeth—an in vitro study

open access: yesBMC Oral Health, 2018
Background In recent years, the diode laser (810 nm) has been used for root canal disinfection, which plays an important role in endodontic therapy.
Shanshan Dai   +5 more
doaj   +1 more source

A Scoping Review of the Efficacy of Diode Lasers Used for Minimally Invasive Exposure of Impacted Teeth or Teeth with Delayed Eruption

open access: yesPhotonics, 2022
Background: The use of diode lasers for oral surgery soft tissue procedures is associated with less pain and bleeding, quick recovery, and better surgical site visibility.
Ali Borzabadi-Farahani
doaj   +1 more source

Efficacy of mitomycin C in modified transcanalicular diode laser dacryocystorhinostomy [PDF]

open access: yesRevista Brasileira de Oftalmologia, 2022
Objective: To evaluate the efficacy of mitomycin C in anatomical and functional success after modified transcanalicular diode laser dacryocystorhinostomy. Methods: A prospective, double-blinded, randomized placebo-controlled study compared the effect of
Eduardo Damous Feijó   +5 more
doaj   +1 more source

Investigation into the integration of a resonant tunnelling diode and an optical communications laser: model and experiment [PDF]

open access: yes, 2007
A resonant tunnelling diode has been monolithically integrated with an optical communications laser [the resonant tunnelling diode (RTD-LD)] to form a simple optoelectronic integrated circuit (OEIC) that is a novel bistable device suitable for an optical
T.J. Slight   +3 more
core   +1 more source

230 mW of blue light from a thulium-doped upconversion fiber laser [PDF]

open access: yes, 1997
We demonstrate a powerful diode-pumped blue laser source, consisting of a 7W diode at 807nm that pumps a Nd:YAG laser giving 1.6W with good beam quality at 1123nm, and a thulium-doped upconversion fiber laser.
Tropper, A.C.   +5 more
core   +1 more source

Distributed and Side-Pumped Fiber Laser Using a Laser Diode Bar Stack

open access: yesIEEE Access, 2018
A distributed, side-pumped Yb3+-doped fiber laser is demonstrated using a laser diode stack as a pump source. Four subwavelength gratings fabricated on the same fused-silica substrate were aligned with four laser diode bars of the laser diode stack ...
Yin-Wen Lee   +6 more
doaj   +1 more source

Volume Bragg grating external cavities for the passive phase locking of high-brightness diode laser arrays : theoretical and experimental study [PDF]

open access: yes, 2011
We describe the theoretical modeling of the external-cavity operation of a phase-locked array of diode lasers in two configurations, the self-imaging cavity based on the Talbot effect and the angular-filtering cavity. Complex filtering functions, such as
Jun Lim   +19 more
core   +1 more source

Integration of a resonant tunneling diode and an optical communications laser [PDF]

open access: yes, 2006
We report on the first integration of a resonant tunneling diode and an optical communications laser operating at around 1.5 /spl μm.
Stanley, CR   +14 more
core   +1 more source

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