Second harmonic generation & optical guiding
Second harmonic generation in novel optical waveguides
... hexagonal PCF with a defect air-hole was compared with the hexagonal PCF without a defect hole and it was proved that introducing a defect hole does not improve the overlap integral and results in low SH output power. In ...
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Second-harmonic generation
... 2.2 Second-harmonic generation as two-step process Comprehensive theories of second-harmonic generation have been developed in the late sixties by among others Boyd [3, ...
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Optical Second Harmonic Generation Measurements for Characterization of Amorphous Silicon Interfaces
... For the current tri-layer sample and laser conditions, we usually deal with the SHG photon counts <10000/sec. Each photon indicates a voltage pulse of height around 1V with 12ns temporal width. Each pulse is profiled by ...
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Relative bulk and interface contributions to optical second-harmonic generation in silicon
... m Second-harmonic generation 共 SHG 兲 has been widely used to study surfaces and interfaces of centrosymmetric ...fourth—共FHG-兲 harmonic generation on an atomic ...
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Optical characterisation of plasmonic nanostructures on planar substrates using second harmonic generation
... dependent second–harmonic gen- eration (SHG) measurements were performed ex situ on plasmonic nanostructures grown by self–assembly on nanopatterned ...
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Second-harmonic mode coupling in microresonator-based optical frequency comb generation
... of second-order nonlinearity may affect the comb self-starting and mode- locking behaviors, resulting in complex dynamics that is still far from well ...and second-harmonic waves in microcomb ...that ...
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Second-harmonic mode coupling in microresonator-based optical frequency comb generation
... Microresonator-based optical frequency comb (microcomb) generation can potentially achieve ultra- compact volume and low power consumption for portable ...comb generation proves highly important to ...
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Finite Element Study of the Second Order (X²) Nonlinear Process of Second Harmonic Generation in Optical Waveguides
... faltering steps and have guided me through life. To all other members of my immediate family I would also like to say thank you.. The University Librarian is hereby gr[r] ...
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Imaging with Second Harmonic Generation Nanoparticles
... We prepared isolated individual nanoparticles on an indium-tin-oxide (ITO) coated glass substrate for SHG characterization. The ITO-coated glass substrate is conductive which allowed us to image the nanoparticles by ...
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Optical second harmonic generation and pump-probe reflectivity measurements from Si/SiO2 interfaces
... the second interface followed by electron trapping in the SiO 2 of the second ...the second interface and this in turn increases the effective nonlinear susceptibility tensor at the interface which ...
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On the design of enhancement cavities for second harmonic generation
... for second harmonic generation, which in general is also ...four-mirror optical cavity composed of two plane mirrors and two concave mirrors of equal curva- ture, although our results contain ...
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Enhancement of second harmonic generation in DPSS laser
... the optical pump radiation. Solid state laser like Nd:YVO 4 has optical absorption only in relatively narrow wavelength bands; thus only small portion of the broadband flashlamp energy passes can be ...
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Magnetic second harmonic generation from interfaces and nanostructures
... magnetic second-harmonic generation (MSHG) is a more difficult and expensive technique but, uniquely, can measure the surface and interface magnetism ...
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Characterization of domain distributions by second harmonic generation in ferroelectrics
... optimized second harmonic generation method has been explored for ferroelectric domain ...azimuth-polarization-dependent second harmonic generation response, the complex domain ...
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Polarity of Liquid Interfaces by Second Harmonic Generation Spectroscopy
... any second-harmonic light generated from preceding optical ...W. Second-harmonic photons are detected in the reflected direction using single- photon ...the second ...
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Second harmonic generation as a probe of broken mirror symmetry
... In this direction, we choose a material, 1T -TaS 2 , in which vertical mirror plane symmetry is manifestly bro- ken across a phase transition [20, 21]. Using this mate- rial, we demonstrate in this Letter that RA-SHG, an ...
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Ultralow-power second-harmonic generation frequency-resolved optical gating using aperiodically poled lithium niobate waveguides
... − 兲e −j ⍀t 兩 2 . Since in general the duration of the pulses un- der test is less than a few picoseconds 共t s 兲=共t s − 兲. The measured spectrum at each time delay will be the su- perposition of the spectra of all ...
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Photoinduced Second Harmonic Generation for the In2O3 Nanoparticles Embedded into the PMMA Polymers
... * E-mail: [email protected] Received: 19 November 2013 / Accepted: 15 July 2014 / Published: 25 August 2014 PMMA/ In 2 O 3 nanocomposite films for photoinduced nonlinear optics were synthesized. 50% (w/v) solution of ...
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Study of the Transition to Instability in Second-Harmonic Generation with Scale Index Method
... nonlinear optical systems is one of the most important issues in high intensity ...in optical systems has been reported by Savage and Walls for the first time ...
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Second Harmonic Generation in Some Donor Acceptor Substituted Chalcone Derivatives
... 2.2. Solubility and Crystal Growth Growth of organic crystals having well developed faces and good optical quality mainly depends on the selection of suitable solvents. Solvents offering moderate solubili- ...
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