Results 31 to 40 of about 143,644 (298)
Power scaling of tunable, narrowband, non-resonant PPLN optical parametric oscillators
Journal of the European Optical Society-Rapid PublicationsWe review our recent achievements with narrowband, nanosecond, non-resonant optical parametric oscillators based on periodically-poled LiNbO3, which are pumped at 1064 nm and emit close to degeneracy in the near-IR part of the spectrum between 1860 and ...
Chen Weidong +13 more
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Influence of cation substitution on optical constants of (Cu1-xAgx)7SiS5I mixed crystals
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2020 (Cu1–хAgx)7SiS5I mixed crystals were grown using the vertical zone crystalliza-tion method, they have been shown to crystallize in cubic structure (). The diffuse reflection spectra for the powders of (Cu1–хAgx)7SiS5I mixed crystals were measured at room
I.P. Studenyak +7 more
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Фізика і хімія твердого тіла, 2023 A good quality single crystal of potassium hydrogen sulphate (KHS) has been grown and subjected to characterization techniques including single crystal X-ray diffraction, scanning electron microscope, hardness test, Z-scan and antimicrobial test.
K. Thilaga +2 more
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Optical chaos in nonlinear photonic crystals [PDF]
, 2002 We examine a spatial evolution of lightwaves in a nonlinear photonic crystal with a quadratic nonlinearity when simultaneously a second harmonic and a sum-frequency generation are quasi-phase-matched. We find the conditions of a transition to Hamiltonian
Alekseev, Kirill N. +1 more
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IR Image Upconversion Under Dual-Wavelength Laser Illumination
IEEE Photonics Journal, 2016 We investigate the use of dual-wavelength laser illumination in a nonlinear infrared-to-visible image upconversion system. We show how a two-wavelength laser illumination can combine the enhanced upconversion field-of-view (FOV) characteristic of ...
H. Maestre, A. J. Torregrosa, J. Capmany
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Optical properties of mesoporous photonic crystals, filled with dielectrics, ferroelectrics and piezoelectrics [PDF]
Journal of Advanced Dielectrics, 2017 At present, it is very important to create new types of mirrors, nonlinear light frequency transformers and optical filters with controlled optical properties. In this connection, it is of great interest to study photonic crystals.
V. S. Gorelik, Dongxue Bi, Guang Tao Fei
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Studies on the Crystal Growth and Characterization of Large Size Sr:LCB Single Crystals
Crystals, 2022 Extending the shortest second harmonic generation output wavelength of nonlinear optical crystals into the deep ultraviolet (UV) range is important for their application as frequency conversion devices for an advanced laser.
Xuliang Zhang +4 more
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Low Threshold, Dual-Wavelength, Mid-Infrared Optical Parametric Oscillator
IEEE Photonics Journal, 2019 In this letter, we demonstrated a dual-wavelength (DW) mid-infrared optical parametric oscillator (OPO) that was pumped by two independent fiber lasers fixed at 1018 nm and 1080 nm, and realized phase-matched signal beam coupling by tuning ...
Xi Cheng +6 more
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Quasi-compactons in inverted nonlinear photonic crystals
, 2011 We study large-amplitude one-dimensional solitary waves in photonic crystals featuring competition between linear and nonlinear lattices, with minima of the linear potential coinciding with maxima of the nonlinear pseudopotential, and vice versa ...
Boris A. Malomed +7 more
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IEEE Photonics Journal, 2017 We report a multiwavelength mid-infrared laser based on intracavity difference frequency generation in an MgO-doped periodically poled LiNbO3 optical parametric oscillator, which was pumped by a dual-wavelength fiber MOPA consisting of two parts: dual ...
Peng Wang +4 more
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