Results 11 to 20 of about 40,871 (163)

Second harmonic generation from GaAs-Au subwavelength relief gratings

Results in Physics, 2022
We study numerically the second-harmonic generation (SHG) from subwavelength GaAs relief gratings with and without Au nano-stripes on the bottom of grating troughs.
C.J. Valencia-Caicedo, E.I. Chaikina, A.V. Khomenko   +2 more
doaj   +1 more source

Second harmonic generation in graphene [PDF]

JETP Letters, 2011
5 pages, 3 ...
openaire   +2 more sources

Second harmonic generation from the `centrosymmetric' crystals

IUCrJ, 2015
Second harmonic generation (SHG) is a well known non-linear optical phenomena which can be observed only in non-centrosymmetric crystals due to non-zero hyperpolarizability.
Venkatram Nalla, Raghavender Medishetty, Yue Wang, Zhaozhi Bai, Handong Sun, Ji. Wei, Jagadese J. Vittal   +6 more
doaj   +1 more source

Vertical Second Harmonic Generation in Asymmetric Dielectric Nanoantennas

IEEE Photonics Journal, 2020
High-permittivity III–V semiconductor nanocavities have shown huge potential for enhanced nonlinear light–matter interactions at the nanoscale. In particular, Second Harmonic (SH) generation in AlGaAs nanoantennas can be extremely efficient;
Davide Rocco, Carlo Gigli, Luca Carletti, Giuseppe Marino, Maria Antonietta Vincenti, Giuseppe Leo, Costantino De Angelis   +6 more
doaj   +1 more source

Resonant second harmonic generation in random dielectric structures [PDF]

Journal of the European Optical Society-Rapid Publications, 2006
We show that resonant second harmonic generation can be obtained in random dielectric structures. The scheme is based on internal resonances due to the optical counterpart of Anderson localization.
Centini Marco, Felbacq Didier, Wiersma Diederick S., Sibilia Concita, Scalora Michael, Bertolotti Mario   +5 more
doaj   +1 more source

Second Harmonic Generation in Nanostructured Metamaterials [PDF]

Latin America Optics and Photonics Conference, 2014
16 pages, 7 ...
Meza, Ulises R., Mendoza, Bernardo S., Mochán, W. Luis   +2 more
openaire   +2 more sources

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

iScience, 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, Masato Yasui, Mutsuo Nuriya   +2 more
doaj   +1 more source

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

Micromachines, 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, Marco Ravaro, Stéphan Suffit, Pascal Filloux, Aristide Lemaître, Ivan Favero, Giuseppe Leo   +6 more
doaj   +1 more source

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

Enhanced resonant second harmonic generation in plasma based on density transition

Nukleonika, 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