Results 31 to 40 of about 275,683 (312)

SECOND HARMONIC GENERATION IN THE CENTROSYMMETRIC ANTIFERROMAGNET LaFeO3

open access: yesРоссийский 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

High-Resolution Plasma Membrane-Selective Imaging by Second Harmonic Generation

open access: yesiScience, 2018
Summary: The plasma membrane is the site of intercellular communication and subsequent intracellular signal transduction. The specific visualization of the plasma membrane in living cells, however, is difficult using fluorescence-based techniques owing ...
Takaha Mizuguchi   +2 more
doaj   +1 more source

Second-Harmonic Generation in Suspended AlGaAs Waveguides: A Comparative Study

open access: yesMicromachines, 2020
Due to adjustable modal birefringence, suspended AlGaAs optical waveguides with submicron transverse sections can support phase-matched frequency mixing in the whole material transparency range, even close to the material bandgap, by tuning the width-to ...
Iännis Roland   +6 more
doaj   +1 more source

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

open access: yes, 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.   +22 more
core   +1 more source

Detection of second-order nonlinear optical magnetization by mapping normalized Stokes parameters [PDF]

open access: yes, 2013
A measurable magnetic (nonlocal) contribution to the second harmonic generation (SHG) of nonmagnetic materials is an intriguing issue related to chiral materials, such as biomolecules.
Larciprete, Maria Cristina   +11 more
core   +1 more source

Second-harmonic generation in SiC polytypes [PDF]

open access: yesPhysical 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.   +2 more
openaire   +2 more sources

Enhanced resonant second harmonic generation in plasma based on density transition

open access: yesNukleonika, 2015
Resonant second harmonic generation of a relativistic self-focusing laser in plasma with density ramp profile has been investigated. A high intense Gaussian laser beam generates resonant second harmonic beam in plasma with density ramp profile.
Kant Niti, Thakur Vishal
doaj   +1 more source

Optical second-harmonic generation from the anatase TiO_2(101) face [PDF]

open access: yes, 2000
We have observed optical second harmonic generation (SHG) from the (101) face of anatase TiO_2. The SH intensity from the TiO_2 (101) face in air as a function of the sample rotation angle around the surface normal gives asymmetric patterns for all ...
Kurita, S.   +15 more
core   +1 more source

Plasma-Grating-Enabled Second Harmonic Generation

open access: yesUltrafast 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

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

open access: yes, 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   +12 more
core   +1 more source

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