نتایج جستجو برای: pulsed alexadrite laser

تعداد نتایج: 210313  

2008
C V BINDHU S S HARILAL RIJU C ISSAC GEETHA K VARIER V P N NAMPOORI

Abstract. Pulsed photoacoustic measurements have been carried out in toluene at 532 nm wavelength using a Q-switched frequency doubled Nd:YAG laser. The variation of photoacoustic signal amplitude with incident laser power indicates that at lower laser powers one photon absorption takes place at this wavelength while a clear two photon absorption occurs in this liquid at higher laser powers. Th...

Mohammad Mehdi Tehranchi, Seyed Mohammad Hosein Khalkhali, Seyedeh Mehri Hamidi,

We examine the photo-assisted polarization loop in a BiFeO3 thin film under UV light illumination. BiFeO3 thin film prepared by pulsed laser deposition method onto the BaTiO3 thin film and the polarization behavior has been measured under poling voltage. Our results show the engineered polarization due to controllable schottky barrier under inverse poling voltage. This control on schottky barri...

Journal: :Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus 2007
Evelyn A Paysse Mohamed A W Hussein Aaron M Miller Kathryn M Brady McCreery David K Coats

OBJECTIVE To compare structural and functional outcomes and efficiency of diode laser photocoagulation for retinopathy of prematurity (ROP) when delivered in a pulsed mode versus a near-continuous mode. METHODS A retrospective study was conducted of 138 patients who underwent diode laser photocoagulation for threshold ROP using either pulsed or near-continuous delivery. Laser-related complica...

ژورنال: سنجش و ایمنی پرتو 2020

Photoacoustic (PA) imaging of biological tissues using laser diodes instead of conventional Q switched pulsed systems provides an attractive alternative for biomedical applications. However, the relatively low energy of laser diodes operating in the pulsed regime, results in generation of very weak acoustic waves, and low signal-to-noise ratio (SNR) of the detected signals. This problem can be ...

2000

Submit Manuscript | http://medcraveonline.com electromagnetic wave was firstly shown by Oleinik [4]. However, the theoretical proof of the attraction possibility was given by Kazantsev and Sokolov for interaction of classical relativistic electrons in the field of a plane wave [5]. It is worth noting the work [6]. It is very important to point out, that attraction of classical electrons in the ...

2007

PULSED LASER ABLATION DEPOSITION AND LASER INTERACTION WITH MATERIALS 2.

2018

Submit Manuscript | http://medcraveonline.com electromagnetic wave was firstly shown by Oleinik [4]. However, the theoretical proof of the attraction possibility was given by Kazantsev and Sokolov for interaction of classical relativistic electrons in the field of a plane wave [5]. It is worth noting the work [6]. It is very important to point out, that attraction of classical electrons in the ...

Journal: :نشریه دانشکده فنی 0
پازنده j-tardieu c.marsal

in recent years an abundance of theoretical and experimental works concerning infrared photochemistry has been accomplished. it coincides with the possibility of using intense infrared laser radiation to dissociate molecules in order to induce a selective laser photochemistry. however, the major fraction of these works is concerned with the pulsed photolysis in order to minimize the temperature...

2014
Chen Chia WANG Sudhir TRIVEDI Susan KUTCHER Feng JIN Narasimha S. PRASAD

We demonstrate experimentally the detection of detailed human cardiac mechanical activity in a remote, non-contacting, and non-ionizing manner using a pulsed laser vibrometer. The highly sensitive pulsed laser vibrometer allows the detection of the temporally-phased mechanical events occurring in individual cardiac cycles even from the surface of clothing-covered extremities of the subjects. Fi...

2009
T. Harada I. Ohkubo M. Oshima

Epitaxial La0:6Sr0:4MnO3 (LSMO) thin films were grown by pulsed laser deposition. Relationships between magnetic properties of LSMO epitaxial thin films and ablation conditions such as ablated spot area and total incident laser energy in a pulsed laser deposition technique were studied. Ablated spot area was controlled by changing the focus lens position and total laser energy. Epitaxial growth...

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