Results 41 to 50 of about 258,036 (301)
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Histological evaluation of the surgical margins of oral soft tissue incisions using a dual-wavelength diode laser and an Er, Cr:YSGG laser; an ex vivo study [PDF]
Journal of Applied Oral ScienceOral soft tissue lesions require a precise diagnosis by oral biopsy with the ability to recognize these lesions within histopathological levels, so the instrument used for the incisions should be safe and cause little to no harm to the surrounding tissue.
Alaa Jamal Al-ANI +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study investigates how tramp elements from increased scrap usage influence phase transformations in low‐alloyed steel. Combining dilatometry and microscopy reveal that tramp elements delay transformations, reduce critical cooling rates and increase hardenability.
Lukas Hatzenbichler +5 more
wiley +1 more source
THE OUTCOME OF 810 NM SURGICAL DIODE LASER IN THE MANAGEMENT OF ORAL SOFT TISSUE LESIONS
The Iraqi Journal of Medical Sciences, 2016 Background:Surgical diode lasers have been used in oral surgical procedures with beneficial effects as compared to the conventional techniques. Objective:To evaluate the efficacy and safety of 810 nm surgical diode laser in the field of oral and ...
Ammar S Al-Alawi
doaj +4 more sources
Journal of Pharmacy and Bioallied SciencesBackground: Effective pulpal anesthesia is crucial in endodontic practice, particularly in treating symptomatic irreversible pulpitis. This study explores photobiomodulation therapy (PBMT) as a non-invasive adjunct to traditional anesthesia.
Akshita Balivada +5 more
doaj +1 more source
Active laser frequency stabilization using neutral praseodymium (Pr)
, 2009 We present a new possibility for the active frequency stabilization of a laser using transitions in neutral praseodymium. Because of its five outer electrons, this element shows a high density of energy levels leading to an extremely line-rich excitation
A. Friedenauer +27 more
core +1 more source
Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules
Advanced Functional Materials, EarlyView.A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang +7 more
wiley +1 more source
Linewidth Reduction by Feedforward Locking a Laser Diode to a Femtosecond Comb Line
IEEE Photonics Journal, 2016 We propose and demonstrate a novel method to narrow the linewidth of a laser diode at 1550 nm by an electronics-assisted feedforward path and weak locking to a femtosecond comb line simultaneously.
Ziping Zhang +6 more
doaj +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
BDJ OpenAim To assess the impact of 980 nm diode laser-activated irrigation with or without EDTA on the adaptability of root canal filling in oval-shaped canals using a scanning electron microscope.
Sabah M. Sobhy
doaj +1 more source