Results 21 to 30 of about 10,053,327 (300)

Disentangling Second Harmonic Generation from Multiphoton Photoluminescence in Halide Perovskites using Multidimensional Harmonic Generation [PDF]

, 2020
Metal halide perovskites are an intriguing class of semiconductor materials being explored for their linear and non-linear optical, and potentially ferroelectric properties. In particular, layered two-dimensional Ruddlesden-Popper (RP) halide perovskites
Amelia, Wheaton, Ilia, Guzei, Daniel, Kohler, John, Wright, Darien, Morrow, Meiying, Leng, David, Lafayette, Song, Jin, Matthew, Hautzinger, Jiang, Tang, yongping, fu, Lianna, Dang, Jason, Scheeler   +12 more
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Label-free 3D visualization of cellular and tissue structures in intact muscle with second and third harmonic generation microscopy. [PDF]

, 2011
Second and Third Harmonic Generation (SHG and THG) microscopy is based on optical effects which are induced by specific inherent physical properties of a specimen.
Krombach Fritz, Rehberg, Markus, Fritz Krombach, Steffen Dietzel, Rehberg Markus, Pohl Ulrich, Dietzel, Steffen, Dietzel Steffen, Markus Rehberg, Ulrich Pohl, Pohl, Ulrich, Krombach, Fritz   +11 more
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SECOND HARMONIC GENERATION IN THE CENTROSYMMETRIC ANTIFERROMAGNET LaFeO3

Российский технологический журнал, 2017
The paper presents the results of experimental and theoretical studies of nonlinear optical properties of LaFeO3 thin film, which is antiferromagnetic and centrosymmetric, the latter provides prohibition of second harmonic generation in electric-dipole ...
A. M. Buryakov
doaj   +1 more source

An Investigation into the Role of Capping on Second Harmonic Generation from Nonlinear Organic Polymer and Guest-Host Thin Films by In-situ Poling [PDF]

, 2016
In attempts to fabricate thermally stable second-order nonlinear polymer thin films, we have investigated the second harmonic generation (SHG) from both nonlinear polymer and guest-host thin films. We have also investigated the role of capping on the SHG,
Ushasree, P.M., Ushasree, Palat, Szablewski, M.   +2 more
core   +1 more source

Spatiotemporal phase-matching in capillary high-harmonic generation [PDF]

, 2012
We present a simple phase-matching model that takes into account the full spatiotemporal nature of capillary high-harmonic generation. Spectra predicted from the model are compared to experimental results for a number of gases and are shown to reproduce ...
Rogers, Edward T.F., Praeger, M., Grant-Jacob, James, Stebbings, Sarah L., Frey, Jeremy G., de Paula, A., Rogers, E., de Paula, Ana M., Froud, Christopher A., Brocklesby, William S., Mills, Benjamin, Grant-Jacob, J., Praeger, Matthew, Mills, B., Frey, J., Stebbings, S., Froud, C., Brocklesby, W.   +17 more
core   +1 more source

Plasma-Grating-Enabled Second Harmonic Generation

Ultrafast Science
We present the experimental features of second harmonic emission from an air plasma coexcited by 2 ultrafast laser pulses and propose a theoretical model that describes the observed properties.
Shing Yiu Fu, Daopeng Yuan, X.-C. Zhang
doaj   +1 more source

Second-harmonic generation in SiC polytypes [PDF]

Physical Review B, 1998
LMTO calculations are presented for the frequency dependent second harmonic generation (SHG) in the polytypes 2H, 4H, 6H, 15R and 3C of SiC. All independent tensor components are calculated. The spectral features and the ratios of the 333 to 311 tensorial components are studied as a function of the degree of hexagonality. The relationship to the linear
Rashkeev, Sergey N., Lambrecht, Walter R. L., Segall, Benjamin   +2 more
openaire   +2 more sources

Spatial solitons in quadratic 2D nonlinear photonic crystals [PDF]

, 2007
We report on the first investigations into parametric solitary-wave formation in 2D nonlinear photonic crystals and present experimental results obtained in an hexagonally poled LiNbO3 waveguide designed for twin-beam second harmonic generation at ...
Alessia Pasquazi, Gallo, K, Gaetano Assanto, Pasquazi, A., Katia Gallo, Gallo, K., Pasquazi, A, STIVALA, Salvatore, Stivala, S., Assanto, G., Salvatore Stivala, Assanto, Gaetano, Gallo, Katia,, Pasquazi, Alessia   +13 more
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Electric-field-induced second-harmonic generation

Opto-Electronic Advances
Second-harmonic generation (SHG) is a fundamental nonlinear optical process widely used in photonics; however, it is strictly forbidden in the bulk of centrosymmetric materials due to their inversion symmetry.
Hangkai Fan, Alexey Proskurin, Mingzhao Song, Andrey Bogdanov   +3 more
doaj   +1 more source

Nonlinear plasmonics: second-harmonic generation and multiphoton photoluminescence

PhotoniX, 2023
The study on the nonlinear optical responses arising from plasmonic nanoantennas, known as nonlinear plasmonics, has been massively investigated in recent years.
Jiyong Wang, Lei Zhang, Min Qiu
doaj   +1 more source