Results 41 to 50 of about 227,483 (326)

The Berkeley tunable far infrared laser spectrometers [PDF]

, 1991
A detailed description is presented for a tunable far infrared laser spectrometer based on frequency mixing of an optically pumped molecular gas laser with tunable microwave radiation in a Schottky point contact diode.
Blake, G. A., Busarow, K. L., Cohen, R. C., Gwo, D.-H., Laughlin, K. B., Saykally, R. J., Schmuttenmaer, C. A., Steyert, D. W.   +7 more
core   +1 more source

Assisting gas effect on cutting process of Formica and Emery paper using low power (1.6 Watt) laser diode

Tikrit Journal of Pure Science, 2023
1.6 W diode laser operating at 808nm was used to cut Formica and Emery paper. The laser light was concentratedon the samples’ surfaces by using a positive lens.
Walid K. Hamoudi, Abdul-Majeed E. Ibrahim, Akram A. Khalaf   +2 more
doaj   +1 more source

A histological evaluation of the surgical margins from human oral fibrous-epithelial lesions excised with CO2 laser, Diode laser, Er:YAG laser, Nd:YAG laser, electrosurgical scalpel and cold scalpel

Medicina Oral, 2019
Background We aim to evaluate the presence of histological artefacts in the surgical margins of human oral fibro-epithelial hyperplasias excised with lasers of different wavelengths, and also electrosurgical scalpel and cold scalpel.
L. Monteiro, M. Delgado, Fernanda Garcês, M. Machado, Fernando Ferreira, Marco Martins, F. Salazar, J. Pacheco   +7 more
semanticscholar   +1 more source

Novel Broadband Amplifier for Mid-Infrared Semiconductor laser and applications in spectroscopy [PDF]

, 2010
An amplifier design for broadband Mid-IR buried-hetero (BH) structure epitaxial laser is presented, and external cavity design based on this amplifier is described.
Deev, Andrei, Li, Zhenyu, Scherer, Axel, Tang, Yongchun, Wu, Sheng   +4 more
core   +1 more source

A comparative study of the surface glaze characteristics of concrete treated with CO2 and high power diode lasers. Part II: mechanical, chemical and physical properties [PDF]

, 2000
The hardened ordinary Portland cement (OPC) surface layer of concrete which was glazed using a CO2 and a high power diode laser (see Part I of this paper) has been tested in order to determine the mechanical, chemical and physical characteristics of ...
Bungey, Carino, Dickson, Hall, J. Lawrence, L. Li, Lawrence, Petitbon, Petitbon, Vargin, Wilson   +10 more
core   +1 more source

Aesthetic Treatment Outcomes of Capillary Hemangioma, Venous Lake, and Venous Malformation of the Lip Using Different Surgical Procedures and Laser Wavelengths (Nd:YAG, Er,Cr:YSGG, CO2, and Diode 980 nm)

International Journal of Environmental Research and Public Health, 2020
Different approaches with different clinical outcomes have been found in treating capillary hemangioma (CH), venous lake (VL), or venous malformations (VM) of the lips.
S. Nammour, Marwan El Mobadder, M. Namour, Amaury Namour, J. Arnabat-Domínguez, K. Grzech-Leśniak, A. Vanheusden, P. Vescovi   +7 more
semanticscholar   +1 more source

CO2 and Diode Lasers vs. Conventional Surgery in the Disinclusion of Palatally Impacted Canines: A Randomized Controlled Trial

Photonics, 2023
Background: The aim of this RCT is to show the effectiveness of laser technology for the exposure of palatally impacted canines, using a CO2 or diode laser, and to evaluate the possible bio-stimulation effect of the laser on the spontaneous eruption of ...
A. Impellizzeri, M. Horodynski, G. Palaia, G. La Monaca, D. Pergolini, A. Polimeni, U. Romeo, G. Galluccio   +7 more
semanticscholar   +1 more source

Research on the Seed Respiration CO2 Detection System Based on TDLAS Technology

International Journal of Optics, 2023
The traditional detection method of CO2 concentration in seed respiration has defects such as low detection accuracy, low detection efficiency, and inability to monitor in real time.
Lu Gao, Ying Zang, Guangwu Zhao, Hengnian Qi, Qizhe Tang, Qingshan Liu, Liangquan Jia   +6 more
doaj   +1 more source

Comparative evaluation of the efficacy of co2 and diode laser in the treatment outcome of oral homogeneous leukoplakia

Journal of Indian Academy of Oral Medicine and Radiology, 2021
Background: “L.A.S.E.R” an acronym for “Light Amplification by Stimulated Emission of Radiation” works as an alternative to conventional surgical systems. It has many advantages and is widely used in the treatment of both oral hard and soft tissues.
Amrita Gupta, Sandeep S Pagare, Sunanda Bhatnagar, Mandavi Waghmare, Sonal Vahanwala   +4 more
doaj   +1 more source

Diode laser photoacoustic spectroscopy of CO2, H2S and O2 in a differential Helmholtz resonator for trace gas analysis in the biosciences and petrochemistry

Analytical and Bioanalytical Chemistry, 2019
Photoacoustic spectroscopy in a differential Helmholtz resonator has been employed with near-IR and red diode lasers for the detection of CO2, H2S and O2 in 1 bar of air/N2 and natural gas, in static and flow cell measurements.
Saeed Alahmari, Xiu-Wen Kang, M. Hippler
semanticscholar   +1 more source