نتایج جستجو برای: diode lasers

تعداد نتایج: 40758  

Journal: :journal of dentistry, tehran university of medical sciences 0
zahra bahrololoomi faezeh fotuhi ardakani milad sorouri

objectives: fluoride therapy is important for control and prevention of dental caries. laser irradiation can increase fluoride uptake especially when combined with topical fluoride application. the objective of this study was to compare the effects of co 2 and diode lasers on enamel fluoride uptake in primary teeth. materials and methods: forty human primary molars were randomly assigned to fou...

Journal: :journal of lasers in medical sciences 0
behrooz barikbin laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran skin research center, shahid beheshti university of medical sciences, tehran, iran azin ayatollahi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran somayeh hejazi laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran zahra saffarian laser application in medical sciences research center, shahid beheshti university of medical sciences, tehran, iran sara zamani department of dermatology, rasoul-e- akram hospital, tehran university of medical sciences, tehran, iran

according to the english literature, various lasers and light sources (i,g. argon ion lasers, pulsed ktp lasers, diode lasers and nd:yag lasers, pulsed dye laser(pdl), intense pulsed light sources (ipls) are applicable for the treatment of different vascular lesions. these conditions are the most important indication for laser therapy. this review summarizes the current literature on ipl with r...

Journal: :journal of lasers in medical sciences 0
ena mathur department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india mohit sareen senior lecturer, department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india payal dhaka senior lecturer, department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india pallavi baghla senior lecturer, department of oral medicine and radiology, rajasthan dental college, jaipur, rajasthan, india

introduction: lasers have made tremendous progress in the field of dentistry and have turned out to be crucial in oral surgery as collateral approach for soft tissue surgery. this rapid progress can be attributed to the fact that lasers allow efficient execution of soft tissue procedures with excellent hemostasis and field visibility. when matched to scalpel, electrocautery or high frequency de...

Journal: :journal of lasers in medical sciences 0
farhad hamad mustafa medical physics and radiation science, college of pharmacy, hawler medical university, 44002 erbil, iraq mohamad suhimi jaafar medical physics and laser research group, school of physics, universiti sains malaysia, 11800 penang, malaysia asaad hamid ismail radiation science and medical physics, education college, physics department, salahaddin university, 44002 erbil, iraq kussay nugamesh mutter engineering physics, school of physics, universiti sains malaysia, 11800 penang, malaysia

introduction: to improve laser hair removal (lhr) for dark skin, the fluence rate reaching the hair follicle in lhr is important. this paper presents the results of a comparative study examining the function of wavelength on dark skin types using 755 nm alexandrite and 810 nm diode lasers. methods: the structure of the skin was created using a realistic skin model by the advanced systems analys...

1999
Carl E. Wieman Leo Hollberg

We present a review of the use of diode lasers in atomic physics with an extensive list of references. We discuss the relevant characteristics of diode lasers and explain how to purchase and use them. We also review the various techniques that have been used to control and narrow the spectral outputs of diode lasers. Finally we present a number of examples illustrating the use of diode lasers i...

Journal: :Optics letters 1986
T Y Fan G J Dixon R L Byer

The use of semiconductor diode lasers as pump sources for solid-state lasers was demonstrated as early as 1964.1 In the past few years the dramatic increase in output power of diode lasers 2 has made pumping of solid-state lasers practical. Recently it was shown that diode-laser-pumped Nd:YAG lasers offer advantages over lamp-pumped lasers, including high efficiency3 and good frequency stabilit...

2005
J. Hult I. S. Burns C. F. Kaminski

This paper presents two extended cavity diode laser tuning schemes, implemented using blue diode lasers, the first allows long mode-hop free tuning ranges (>110 GHz), whereas the second allows very high scan rates (>10 kHz). ©2005 Optical Society of America OCIS codes: (140.3600) Lasers, tunable; (140.2020) Diode lasers; (120.4570) Optical design of instruments

Journal: :journal of lasers in medical sciences 0
deise osmari federal university of santa maria (ufsm), santa maria, rs, brazil. ana carolina de oliveira ferreira federal university of santa maria (ufsm), santa maria, rs, brazil. mariana de carlo bello federal university of santa maria (ufsm), santa maria, rs, brazil. alexandre henrique susin department of dentistry, federal university of santa maria (ufsm), santa maria, rs, brazil ana cecília correia aranha department of dentistry at the college of dentistry of são paulo, university of são paulo (usp), são paulo, sp, brazil. marcela marquezan federal university of santa maria (ufsm), santa maria, rs, brazil.

introduction: the purpose of a desensitizing agent is a permanent coating or filling of dentin surface. morphological analysis in vitro of this treated surface is essential to understand the interaction between desensitizing agent and hypersensitive dentin. the aim was to evaluate the morphology of four dentin surface treated with desensitizing agents. methods: this was an in vitro laboratory s...

Journal: :Science 1988
R L Byer

Diode laser-pumped solid-state lasers are efficient, compact, all solid-state sources of coherent optical radiation. Major advances in solid-state laser technology have historically been preceded by advances in pumping technology. The helical flash lamps used to pump early ruby lasers were superseded by the linear flash lamp and arc lamp now used to pump neodymium-doped yttrium-aluminum-garnet ...

Ehsan Birang, Mehrnoosh Tavakoli, Reza Birang,

Objectives The use of lasers for the treatment of periimplant hard and soft tissues is now refmore than ever before. Achieving bone integrity. The aim of this study is to evaluate the effects of Er:YAG, 980 nm and 810 nm diode lasers irradiation on biocompatibility of SLA titanium disks by SaOs2 cells morphology. Methods In this in-vitro study sixty sterile titanium disks with SLA surface were...

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