Q-switched laser
Investigation of Effective Parameters on Pulsed Nd:YAG Passive Q-Switched Laser
... passive Q-switched laser with Cr 4+ :YAG crystal, we have investigated the influence of different initial transmission of saturable absorber, reflectivity of the output coupler, diameter of the rod, ...
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Effect of Q switched laser surface texturing of titanium on osteoblast cell response
... Initial work investigated the range of features that could be generated using the laser miller. The textures shown in Figure 2 were generated using a stepped target profile ( Figure 2 d). The lower magnification ...
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Q-switched laser as a source for Thomson scattering from a hollow cathode arc.
... gas discharge. An investigation was made of the effects on the system under normal oscillation, when the parameters temperature, cavity length, and input pumping were varied. Phthalocyanine and cryptocyanine dyes in ...
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Beam spot of Q-switched ND: YAG laser based on raster graphic
... developed Q-switched Nd:YAG laser was employed as source of ...the laser is 1064 nm. The laser was Q-switched Nd:YAG using KD*P as a Pockels ...the ...
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Q switched fibre lasers for distributed sensing applications
... In conclusion the higher threshold obtained by using a short length of fibre to generate the Raman, coupled with the high peak powers from the Q-switched laser, enabled a 1.64pm pulsed s[r] ...
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Numerical Study of Transient Temperature Distribution in Passively Q Switched Yb:YAG Solid State Laser
... passively Q-switched laser, using MATLAB ® PDE toolbox, to solve the parabolic heat ...the Q- switched lasers, the quantitative study of both radial and axial temperature distributions ...
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C Band Q Switched Fiber Laser Using Titanium Dioxide (TiO 2) As Saturable Absorber
... pulsed laser output [1]. Q-switching is obtained by modulating the quality factor Q of laser cavity such that a series of short, intense pulses produced, with a higher Q factor ...
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Low-Fluence 585 nm Q-Switched Nd:YAG Laser: A Novel Laser Treatment for Post-Acne Erythema
... ultrashort Q-switched laser (in the nanosecond domain) at the 585 nm ...the Q-switched Nd:YAG laser can produce a high peak power which, together with the ultra-short pulse ...
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Experimental Study of a Flash-lamp Pumped Passively Q-Switched Nd:YAG Laser Using Cr4+:YAG Saturable Absorber
... free-running laser mode. The laser cavity length (L) was set to ...output laser pulse are shown in Figure ...the laser pulse width is about 80 ...output laser energy versus the ...
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Spectral and temporal control of Q-switched solid-state lasers using intracavity MEMS
... the laser (on or off) can be selected on-demand during Q-switch operation by simultaneously applying a voltage signal to the actuators of the ET micromirror, causing a static angular tilt in or out of ...
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Severe unexpected adverse effects after permanent eye makeup and their management by Q-switched Nd:YAG laser
... Lasers are effective for tattoo removal based on the principle of selective photothermolysis and, in the case of a Q-switched laser, by an additional photoacoustic effect. Choosing the right ...
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CW and passively Q switched double clad planar waveguide lasers
... Thin planar geometry ideal for thermal management Ideal for quasi-three level systems: Nd3+,Yb3+,Tm3+,Er3+ Proximity coupling ⇒ simple and robust ¾ No coupling optics ¾ Compatible with c[r] ...
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Original Article The efficacy of 1064-nm Q-switched Nd: YAG laser combined with tranexamic acid, glutathione, and vitamin C in the treatment of chloasma
... a laser alone. According to a relevant study, the 1064-nm Q-switched Nd: YAG laser, which is effective for treating chloasma and promoting melanin metabolism, is an advanced ...uses ...
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Nonresonant self-injection seeding of a gain-switched diode laser
... The simple estimates (2)–(4) are only valid, first, for very small and, second, in the absence of modulation. Experi- mentally, spectrum narrowing and mode hopping due to external cavity adjustments are indeed observed ...
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A comparative study on efficacy of Q switched neodymium-doped yttrium aluminium garnet (Nd:YAG) laser versus 15% trichloroacetic acid (TCA) peel in the treatment of melasma
... OF Q SWITCHED NEODYMIUM-DOPED YTTRIUM ALUMINIUM GARNET (Nd:YAG) LASER VERSUS 15% TRICHLOROACETIC ACID (TCA) PEEL IN THE TREATMENT OF MELASMA” has been prepared by ...
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Alloying of aluminium surface with Q-switched Nd:YAG laser
... a Q-switched Nd:YAG laser with a fundamental wavelength of 1064 nm and pulse duration of 10 ns was employed as a source of ...The laser was focused by a biconvex lens with focal length of 10 ...
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The new treatment of cafe au lait spot using dr hoon hur’s golden parameter therapy with a high fluence 1064nm q switched nd: yag laser
... traditional laser treatments such as ruby laser, alexandrite laser and 532nm QSNL have been widely used in the treatment of ...traditional laser treatments were unsatisfactory because they ...
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The Q Switched Nd: YAG Laser in Tattoo Removal and the Effect of Lymphatic Elimination: An Experimental Study in Rabbits
... and laser assited methods. Invention of the Q-switch mode, advanced the laser method, to be one of the most effective methods of tattoo ...of Q-switched Nd-YAG laser (532nm, ...
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Mixed-Type Melasma Treated with Low Fluence Q-Switched Nd-YAG 1064 nm Laser: A Case Report
... Background: Melasma is an acquired, chro- nic hypermelanosis condition. Melasma is more common in women of all races and occur espe- cially on the face. The pathogenesis of melasma is very complex and the treatment is ...
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The new treatment of partial unilateral lentiginosis using Dr hoonhur’s golden parameter therapy with a high fluence 1064nm Q switched ND:YAG laser without side effects
... (PUL) is a rare pigmentary skin disease characterized by numerous on an area of normal skinconfined to only one side of the face or body of PUL isnecessary for cosmetically outside effects such as purpura, crust, mottled ...
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