Results 41 to 50 of about 275,683 (312)

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

, 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, Matsushima, Toshinori, Ngah Demon, Siti Zulaikha, Mizutani, Goro, Miyauchi, Yoshihiro   +4 more
core   +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

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

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

, 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

Experimental and theoretical study of second and third harmonic generation in amorphous silicon

, 2022
We report contrasted experimental and theoretical results on second and third harmonic generation from an amorphous silicon nanolayer. We perform this study by analysing the harmonic optical signals generated when fs and ps pulses tuned at 800nm and ...
Scalora, Michael, Trull Silvestre, José Francisco, Vilaseca Alavedra, Ramon, Rodríguez Suñé, Laura, Cojocaru, Crina, Akozbek, Neset   +5 more
core   +1 more source

Second harmonic generation confocal microscopy of collagen type I from rat tendon cryosections

, 2006
We performed second harmonic generation (SHG) imaging of collagen in rat-tendon cryosections, using femtosecond laser scanning confocal microscopy, both in backscattering and transmission geometries.
Theodossiou, Theodossis A., Thrasivoulou, C, Chidi Ekwobi, Ekwobi, Chidi, Theodossiou, TA, Becker, DL, Becker, David L., David L. Becker, Christopher Thrasivoulou, Thrasivoulou, Christopher, Theodossis A. Theodossiou, Ekwobi, C   +11 more
core   +1 more source

Optical second harmonic generation at heterojunction interfaces of a molybdenum trioxide layer and an organic layer [PDF]

, 2010
We have observed optical second harmonic generation (SHG) from a space charge layer (SCL) in a stacked indium tin oxide (ITO)/molybdenum trioxide (MoO_3)/N−N′-diphenyl-N−N′-bis(1-naphthly)-1,1′-biphenyl-4,4′-diamine (α-NPD) system.
Mizutani, G., A. B. El Basaty, Murata, H., G. Mizutani, Basaty, A. B. EL, H. Murata, T. Matsushima, Miyauchi, Y., Matsushima, T., Y. Miyauchi   +9 more
core   +1 more source

Second Harmonic Generation in a Photonic Crystal [PDF]

Optics and Photonics News, 1997
Phase matched second harmonic generation is observed experimentally in a centrosymmetric crystalline lattice of dielectric spheres of optical dimensions. The inversion symmetry is broken locally at the surface of each sphere in such a way that the scattered second harmonic light interferes constructively leading to a nonvanishing macroscopic field ...
Martorell, Jordi, Vilaseca, Ramon, Corbalán, Ramón, American Physical Society   +3 more
openaire   +4 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Strong-field-assisted x-ray second harmonic generation

Physical Review Research
We theoretically demonstrate x-ray second harmonic generation (SHG) with strong-field-driven high harmonic generation (HHG) from core electrons in gas-phase atoms, highlighting its potential as a powerful spectroscopic tool for studying atomic and ...
Xinhua Xie (谢新华)
doaj   +1 more source