Results 21 to 30 of about 63,654 (313)

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

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

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

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

Optical second harmonic generation phase measurement at interfaces of some organic layers with indium tin oxide [PDF]

open access: yes, 2014
We observed phase shift in optical second harmonic generation (SHG) from interfaces of indium tin oxide (ITO)/copper phthalocyanine (CuPc) and ITO/pentacene. Phase correction due to Fresnel factors of the sample was taken into account.
Murata, Hideyuki   +4 more
core   +1 more source

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

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

Metal-Interface Second Harmonic Generation from Pt/Cu Bimetallic Nanowire Arrays on NaCl(110) Faceted Templates [PDF]

open access: yes, 2009
We have obtained the azimuthal angle dependence of the second harmonic (SH) intensity from bimetallic Pt/Cuand Pt/SiO/Cu nanowire arrays. The arrays were fabricated by shadow deposition on NaCl(110) faceted templates.The SH intensity from the Pt/Cu ...
Nguyen, Anh Tuan, Mizutani, Goro
core   +1 more source

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