نتایج جستجو برای: solid state laser

تعداد نتایج: 1173418  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده علوم 1387

چکیده ندارد.

Journal: :journal of dentistry, tehran university of medical sciences 0
jaber yaghini narges naghsh elaheh attaei reza birang ehsan birang

objectives: scaling and root planing (srp) is one of the most commonly used procedures during periodontal treatment. the aim of this study was to evaluate the root surface roughness after srp with erbium: yttrium aluminum garnet (er:yag) laser compared to ultrasonic and hand instruments.   materials and methods: in this experimental study, 56 extracted sound single-rooted teeth with moderate le...

Journal: :iranian journal of microbiology 0
hassan ammoneh department of molecular biology and biotechnology, aecs, damascus, syria. muhanad harba department of molecular biology and biotechnology, aecs, damascus, syria. yasser akeed department of molecular biology and biotechnology, aecs, damascus, syria. mohanad al-halabi department of molecular biology and biotechnology, aecs, damascus, syria. yasser bakri department of molecular biology and biotechnology, aecs, damascus, syria.

background and objectives: bacillus species are attractive industrial organisms due to their rapid growth rates leading to a short fermentation cycle and for their capacity to secrete important enzymes and proteins such as xylanase into the extracellular medium. considering the industrial importance of xylanase, in this current study, bacillus spp. were isolated from different soils and were sc...

2003
G. Travish J. K. Crane A. Tremaine

High average-power free-electron lasers may be useful for pumping high peak-power solid-state laser-amplifiers. At very high peak-powers, the pump source for solid-state lasers is non-trivial: flash lamps produce thermal problems and are unsuitable for materials with short florescence-times, while diodes can be expensive and are only available at select wavelengths. FELs can provide pulse train...

Journal: :Optics letters 2017
Yong Sing You Mengxi Wu Yanchun Yin Andrew Chew Xiaoming Ren Shima Gholam-Mirzaei Dana A Browne Michael Chini Zenghu Chang Kenneth J Schafer Mette B Gaarde Shambhu Ghimire

Solid-state high-harmonic sources offer the possibility of compact, high-repetition-rate attosecond light emitters. However, the time structure of high harmonics must be characterized at the sub-cycle level. We use strong two-cycle laser pulses to directly control the time-dependent nonlinear current in single-crystal MgO, leading to the generation of extreme ultraviolet harmonics. We find that...

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