[PDF] Top 20 Second harmonic generation in novel optical waveguides

... The FEM is a very powerful numerical technique for solving geometrically complicated systems. The basic concept in the FEM is to find a solution for a complicated system by replacing it with a finite number of well ... See full document

... this novel imaging probe is that both the illuminating and emitted light are in the NIR range, allowing for minimal signal loss and deeper penetration of the ... See full document

... samples were cut from a wafer purchased from Crystal Technology, USA. A UV blocking filter (UVBF) was placed between L1 and the LiNbO to block any SHG signal generated 3 along the optical train before the sample. ... See full document

... Using UV direct writing techniques [10] two different methods have been used for creating waveguides in the present study (see Figure 4.4). The first method (a) uses the thermally crosslinked polymer as a core ... See full document

... the scale index in detecting critical value of the electric field. Furthermore, this study reveals the fact that the SHG process can be subjected to a chaotic response without any external feedback. The results of ... See full document

... of optical bi- stability and phase conjugation @ 16 # , transmission of high- Q optical and microwave cavities @ 17 # , cyclotron resonance of an electron in a Penning trap @ 18 # , and underdamped vi- ... See full document

... long-pass optical filter with a cut-on wavelength of 1000 nm was placed before the sample to absorb any 532 nm radiation generated by the optics preceding ... See full document

... The realization of suitable organic NLO material for use in devices is by no means a simple task as material must have unique properties at both the microscopic and mac- roscopic level. Microscopic properties required ... See full document

... an optical field results in a noise floor, which when first discovered, seemed ...an optical field, we examine the in-phase and out-of-phase fluctuations of the field amplitude, known as “quadratures”, then ... See full document

... nanoparticles so obtained were characterized by powder X-ray powder diffraction (XRD), high resolution transmission electron microscopy, FTIR and Raman spectroscopy and were found to be highly crystalline with cubic ... See full document

... Figure C.3 shows the block diagram of the custom made LabView VI used for our measurements. The VI consists of one for-loop, which ensures that every second ten datapoints are stored. Inside the for-loop, a ... See full document

... resonant second-order suscep- tibility in a two-QW active region mid-infrared (MIR) ...nonlinear optical susceptibility and consequently the nonlinear output power for the optimized ... See full document

... applications. Second- harmonic generation (SHG) and other nonlinear mixing processes have the potential to circumvent this ...large second-order susceptibility ( ) and a mechanism to maintain ... See full document

... nonlinear optical nanoantenna composed of a dielectric nanodisk and an adjacent ...the harmonic wavelength, the efficient second-harmonic radiation is generated predominantly along the ... See full document

... as optical second- harmonic generation (SHG), allow the buried interfacial structure of centrosymmetric materials to be explored through thin capping layers, where conventional surface ... See full document

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... 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 from ... See full document

... Laser damage studies on NLO crystals are extremely important as the surface damage of the crystal by high power laser limits its performance in NLO applications. If the material has a low damage threshold, it severely ... See full document

... ated in transmission from crystalline Si nanospheres 共nSi兲 dispersed in glass were enhanced significantly when driven by two beams with crossed polarizations. Enhancement of any nonlinear-optical 共NLO兲 signal is ... See full document

... ABSTRACT: A novel class of semiorganic nonlinear optical materials viz. pure and glycine doped bisthiourea cobalt oxalate have been synthesized by solvent free mechanochemical method. Chemical composition ... See full document