second-harmonic generation laser
Enhancement of second harmonic generation in DPSS laser
... solid-state laser (DPSSL) with high efficiency, high output power, a good spatial beam profile, and good stability is highly desired for use in a lot of applications such as material processing holography, range ...
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The quantum mechanics of electro-optic feedback, second harmonic generation, and their interaction
... In order to effectively reduce the noise of the laser for the purpose of driving the second harmonic generator, the linewidth of the mode cleaner had to be made sufficiently small. This meant that ...
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Angular Dependence of the Second Harmonic Generation Induced by Femtosecond Laser Irradiation in Silica Based Glasses: Variation with Writing Speed and Pulse Energy
... Because EBSD is the tool for pointing out texture, we intend to get similar information with this method. A texture has actually been detected and is shown in Figure 8 using pole figures. At low pulse energy (Figure ...
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Second Harmonic Generation in Some Donor Acceptor Substituted Chalcone Derivatives
... the chalcones, differential thermal analysis (DTA) and thermogravimetric analysis (TGA) of the chalcones were carried out using the Shimadzu DT-40 simultaneous DTA/TGA analyzer with a heating rate of 10˚C/min un- der the ...
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Synthesis and Functionalization of Second Harmonic Generation Nanocrystals and Their Application in Biological Imaging
... of second harmonic genera- tion (SHG), which addresses some of the limitations inherent to uorescent ...materials. Second harmonic generation is a nonlinear process that relies on light ...
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Third-harmonic generation of femtosecond laser radiation in beta-BaB2O4 crystals
... P P calculated using Eq. (1) for the range of P < 90 GW/cm 2 is displayed in Fig. 2. The results show that the theoretical efficiency of transformation into the third-harmonic radiation amounts to 3 per ...
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A new mode of contrast in biological second harmonic generation microscopy
... Second Harmonic Generation Imaging using Fixed Wavelength ...differing laser powers for the two regions (60 mW and 10 mW respectively), due to variations in the intensity of the SHG signal ...
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Second harmonic generation in sodium vapour induced by a magnetic field
... or second harmonic frequency, despite the r e s t r i c t i o n s mentioned ...the laser pulse and the medium, or by imposing an asymmetry on the system by using a n o n - c o l l i n e a r beam ...
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Echo enabled harmonic generation free electron laser in a mode-locked configuration
... The underlying process is detailed in fig. 3 which shows the effects of the EEHG process upon the higher energy electrons of the initially modulated beam. The higher energy electrons are seen to form relatively tight ...
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Second-harmonic generation and the influence of flexoelectricity in the nematic phases of bent-core oxadiazoles
... Nd:YAG laser (Spectron Lasers, SL804 1615) was used to pro- vide a linearly polarised, near infrared (NIR) funda- mental beam of wavelength 1064 nm and diameter ...
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Cyclotron resonance of the magnetic ratchet effect and second harmonic generation in bilayer graphene
... Recently, there has been interest in the magnetic ratchet effect in two-dimensional electron systems such as semi- conductor quantum wells [1–6], graphene [7–9], and bilayer graphene [10]. It is a nonlinear effect ...
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Considerably Enhanced Second-Harmonic Generation in Resonant U-Shaped Nano-Structures
... Habib Khoshsima was born in Tabriz, Iran, in 1970. He received the B.Sc. degree in atomic and molecular physics from the University of Tabriz, Tabriz, Iran, in 1983 and the M.Sc. and Ph.D. degrees in Laser Physics ...
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Genetic algorithm applied to the optimization of quantum cascade lasers with second harmonic generation
... the laser transi- tion, while the resonance of the second cascade can be achieved by relative thickness variations of the two QWs and the barrier between ...
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Optical characterisation of plasmonic nanostructures on planar substrates using second harmonic generation
... femtosecond laser tuned to a wavelength of 800 ...Ti:sapphire laser pulses of an average power of 200 mW at the samples were used, at a repitition rate of 76 ...diode–pumped laser system is very ...
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General analysis of type I second harmonic generation with elliptical Gaussian beams
... diode laser, first with the investi- gation of a specific example of type II phase matching 20 and then with the qualitative matching of an elliptical beam into an enhancement cavity 21 ; the latter technique was ...
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Growth and Characterization of Guanidinium Trifluoroacetate – Second Harmonic Generation from a Centrosymmetric Crystal
... generation (SHG) efficiency has been observed in this crystal though it crystallizes in centrosymmetric space group. Bulk single crystal of GTFA with a size of 22 x 7 x 2mm 3 is successfully grown by submerged ...
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On the design of enhancement cavities for second harmonic generation
... a laser diode, via an o-axis spherical mirror, to the optimal beam for second harmonic generation, which in general is also ...fundamental laser beam, an arbi- trary choice of mirror ...
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X-ray spectroscopy of super-intense laser-produced plasmas for the study of nonlinear processes. Comparison with PIC simulations
... femto-second laser plasmas leads to a better understanding of nonlinear physical processes, such as TPD, PDI, SHG, in these ...intense laser light into the second harmonic ...
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Performance of ND:YVO4 diode pumped solid state laser in second harmonic generation and Q-switching
... state laser become much more popular because it is portable and much cheaper compare to the other high power laser ...DPSS laser has multipurpose application including for medical, industrial and ...
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Chemical applications of escience to interfacial spectroscopy
... of Second Harmonic ...for laser driven surface spec- troscopy to ab-initio chemical property calculation, and the use of statistical methods to improve laboratory ...
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