نتایج جستجو برای: low power laser

تعداد نتایج: 1759206  

Journal: :Optics express 2011
Walter Lubeigt Vasili G Savitski Gerald M Bonner Sarah L Geoghegan Ian Friel Jennifer E Hastie Martin D Dawson David Burns Alan J Kemp

Low-birefringence (Δn<2x10(-6)), low-loss (absorption coefficient <0.006 cm(-1) at 1064 nm), single-crystal, synthetic diamond has been exploited in a CW Raman laser. The diamond Raman laser was intracavity pumped within a Nd:YVO4 laser. At the Raman laser wavelength of 1240 nm, CW output powers of 1.6 W and a slope efficiency with respect to the absorbed diode-laser pump power (at 808 nm) of ~...

2018
Kumar Biswajit Debnath Monjur Mourshed

7 Emerging economies with rapidly growing population and energy demand, own some of the most 8 expensive power plants in the world. We hypothesized that corruption has a relationship with the 9 capital cost of power plants in developing countries such as Bangladesh. For this study, we analyzed 10 the capital cost of 61 operational and planned power plants in Bangladesh. Initial comparison study...

2004
L. G. Van Willigenburg J. Bontsema W. L. De Koning

So far, researchers have developed simplified models to control the so called Acurex field, which is a solar power plant situated in Tabernas in Spain, used mainly for research purposes. Most of these simplified models for control have been used in simulation. Some have also been used in control experiments. Usually an advanced model of the plant was used to identify and verify the simplified m...

جلوانی, سعید, کوشکی, عزیز مراد,

To obtain the maximum output power of a fast-axial-flow CW-CO2 laser, gas flow velocity can be optimized by using genetic algorithms. Our theoretical approach shows that the gas flow velocity after optimization increases the laser output power substantially from 500W, obtained in our present system, to 2203W.

Journal: :journal of lasers in medical sciences 0
ardavan etemadi sima shahabi nasim chiniforush edris pordel zahra azarbayejani soolmaz heidari

introduction: the aim of this study was to evaluate the composite surface treated by different powers of erbium-doped yttrium aluminum garnet (er:yag) laser in comparison with bur preparation via scanning electron microscope. methods: fourteen composite resin blocks with 15× 10 × 10 mm dimensions were used in this study. the samples were divided to seven groups as follow: group 1 (power: 1 w, e...

2012
Jih-Huah Wu Wen-Dien Chang Chang-Wei Hsieh Joe-Air Jiang Wei Fang Yi-Chia Shan Yang-Chyuan Chang

Conventional laser stimulation at the acupoint can induce significant brain activation, and the activation is theoretically conveyed by the sensory afferents. Whether the insensible low-level Laser stimulation outside the acupoint could also evoke electroencephalographic (EEG) changes is not known. We designed a low-level laser array stimulator (6 pcs laser diode, wavelength 830 nm, output powe...

Journal: :THE JOURNAL OF JAPAN SOCIETY FOR LASER SURGERY AND MEDICINE 1997

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