Enhanced resonant second harmonic generation in plasma based on density transition
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
A Dynamical Model of Harmonic Generation in Centrosymmetric Semiconductors [PDF]
We study second and third harmonic generation in centrosymmetric semiconductors at visible and UV wavelengths in bulk and cavity environments. Second harmonic generation is due to a combination of symmetry breaking, the magnetic portion of the Lorentz ...
Akozbek, N. +6 more
core +3 more sources
SECOND HARMONIC GENERATION IN THE CENTROSYMMETRIC ANTIFERROMAGNET LaFeO3
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
Resonant plasmonic nanoparticles for multicolor second harmonic imaging [PDF]
Nanoparticles capable of efficiently generating nonlinear optical signals, like second harmonic generation, are attracting a lot of attention as potential background-free and stable nano-probes for biological imaging.
Accanto, Nicolò +4 more
core +2 more sources
High-Resolution Plasma Membrane-Selective Imaging by Second Harmonic Generation
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
Optical second harmonic generation near a black hole horizon as possible source of experimental information on quantum gravitational effects [PDF]
Optical second harmonic generation near a black hole horizon is suggested as a source of experimental information on quantum gravitational effects. While absent in the framework of general relativity, second harmonic generation appears in the toy models ...
Aktsipetrov +15 more
core +2 more sources
Super/subradiant second harmonic generation [PDF]
A scheme for active second harmonics generation is suggested. The system comprises $N$ three-level atoms in ladder configuration, situated into resonant cavity. It is found that the system can lase in either superradiant or subradiant regime, depending on the number of atoms $N$.
Koganov, Gennady A., Shuker, Reuben
openaire +2 more sources
Polarization-resolved second-harmonic-generation optical coherence tomography in collagen [PDF]
We describe a novel imaging technique, second-harmonic-generation optical coherence tomography (SHOCT). This technique combines the spatial resolution and depth penetration of optical coherence tomography (OCT) with the molecular sensitivity of second ...
Applegate, Brian E. +3 more
core +1 more source
Second harmonic optical coherence tomography [PDF]
Second harmonic optical coherence tomography, which uses coherence gating of second-order nonlinear optical response of biological tissues for imaging, is described and demonstrated. Femtosecond laser pulses were used to excite second harmonic waves from
Campagnola +16 more
core +1 more source
Second Harmonic Generation in Nanostructured Metamaterials [PDF]
16 pages, 7 ...
Meza, Ulises R. +2 more
openaire +2 more sources

