Results 41 to 50 of about 256,237 (204)

Discrete mode laser diodes with ultra narrow linewidth emission <3kHz [PDF]

, 2008
Ex-facet, free-running ultra-low linewidth (
Anandarajah, Prince M., Barry, Liam P., Cai, B., Herbert, C., Jones, D., Kaszubowska-Anandarajah, Aleksandra, Kelly, Brian, O'Carroll, John, O'Gorman, J., Perry, Philip, Phelan, Richard, Rensing, Marc, Stopford, Jennifer   +12 more
core   +1 more source

Re-mineralization capability of two natural nano-plant extracts on early enamel caries using diode laser

Indian Journal of Dental Sciences, 2022
Background: To investigate diode laser application and two natural nano-plant extracts effect on the re-mineralization and surface micro-hardness of early enamel carious lesions.
Lamiaa Mahmoud Moharam, Doaa Mohamed Sadony   +1 more
doaj   +1 more source

A Comparative Evaluation of the Effect of Photobiomodulation on the Depth of Anaesthesia During Endodontic Treatment of Teeth with Symptomatic Irreversible Pulpitis—A Prospective Clinical Trial

Journal of Pharmacy and Bioallied Sciences
Background: 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, R Vinay Chandra, D Krithika, B Arvind, Mrinalini Jaichander, Priyanka Girish   +5 more
doaj   +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 Science
Oral 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, Hanan J TAHER, Ammar Saleh ALALAWI   +2 more
doaj   +1 more source

Investigations of laser pumped gas cell atomic frequency standard [PDF]

, 1982
The performance characteristics of a rubidium gas cell atomic frequency standard might be improved by replacing the standard rubidium discharge lamp with a single mode laser diode. Aspects of the laser pumped gas cell atomic clock studied include effects
Camparo, J. C., Fueholz, R. P., Volk, C. H.   +2 more
core   +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

Digital control of diode laser for atmospheric spectroscopy [PDF]

, 1985
A system is described for remote absorption spectroscopy of trace species using a diode laser tunable over a useful spectral region of 50 to 200 cm(-1) by control of diode laser temperature over range from 15 K to 100 K, and tunable over a smaller region
Menzies, R. T., Rutledge, C. W.
core   +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, Yitang Dai, Pan Ou, Feifei Yin, Yue Zhou, Jianqiang Li, Kun Xu   +6 more
doaj   +1 more source

Impact of 980 nm diode laser activated irrigation on adaptability of root canal filling in oval-shaped canals

BDJ Open
Aim 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

Effect of Temperature Tuning on Diode Laser Performance [PDF]

Engineering and Technology Journal, 2009
In this work, an expermental study on wavelength tunning for diode laser adopting temperature behavior varition process is carried out .Temperature effect on the characteristics of a stripe Double Heterostructure CW (GaAlAs) diode laser is shown .
Zainab T. Hussain, Adawiya J. Haider
doaj   +1 more source