Results 11 to 20 of about 6,930 (295)

Nonlinear absorption and nonlinear refraction: Maximizing the merit factors [PDF]

SPIE Proceedings, 2012
Both nonlinear absorption and nonlinear refraction are effects that are potentially useful for a plethora of applications in photonics, nanophotonics and biophotonics.
Mazur, L.,, J. Szeremeta, D. Wawrzynczyk, Hanczyc, Piotr,, M. Samoc, Gordel, M.,, Nyk, M.,, Wielgus, M., Gordel, M., Matczyszyn, K., Nyk, M., J. Olesiak-Banska, M. P. Cifuentes, Olesiak-Banska, J.,, Szeremeta, J.,, K. Matczyszyn, Kolkowski, R.,, B. Straszak, Mazur, L., Kolkowski, R., Straszak, B., M. Wielgus, Wawrzynczyk, D.,, Humphrey, M. G., L. Mazur, Wielgus, M.,, P. Hanczyc, Olesiak-Banska, J., Samoc, Marek, M. G. Humphrey, R. Kolkowski, Wawrzynczyk, D., Samoc, Marek,, Matczyszyn, K.,, Straszak, B.,, Szeremeta, J., M. Gordel, Cifuentes, M. P.,, Cifuentes, M. P., Samoc, M., Humphrey, M. G.,, Hanczyc, Piotr, M. Nyk   +42 more
core   +2 more sources

Efficient Tuning of the Third-Order Nonlinear Optical Properties of Some Functionalized Boron-Dipyrromethene Dyes [PDF]

Nanomaterials
In the present work, the third-order nonlinear optical (NLO) response of some recently synthesized, functionally substituted Boron–Dipyrromethene (BODIPY) derivatives is studied, and their nonlinear optical properties are investigated using the Z-scan ...
Ioannis Orfanos, Panagiotis Aloukos, Antonia Kaloudi-Chantzea, George Pistolis, Stelios Couris   +4 more
doaj   +2 more sources

Negative refraction, gain and nonlinear effects in hyperbolic metamaterials

Optics Express, 2013
The negative refraction and evanescent-wave canalization effects supported by a layered metamaterial structure obtained by alternating dielectric and plasmonic layers is theoretically analyzed. By using a transmission-line analysis, we formulate a way to
, Nasim Mohammadi Estakhri, Francesco Monticone   +2 more
exaly   +2 more sources

Transformation from Self-Focusing to Self-Defocusing of Silver Nanoparticles

Nanomaterials, 2021
The nonlinear refraction of silver nanoparticles (AgNPs) in n-hexane was studied by using the closed-aperture Z-scan technique with a 532 nm nanosecond laser.
Jijuan Jiang, Yang Jia, Tong Wu, Yachen Gao   +3 more
doaj   +1 more source

Spatial Self-Phase Modulation in Graphene-Oxide Monolayer

Crystals, 2023
The spatial self-phase modulation (SSPM) of the optical field revealed the magnitude and polarity of nonlinear refraction coefficients of the graphene-oxide (GO) atomic layers in an aqueous base solution with a resonant excitation using a chopped quasi ...
Tikaram Neupane, Bagher Tabibi, Wan-Joong Kim, Felix Jaetae Seo   +3 more
doaj   +1 more source

Nonlinear Refraction and Absorption in Polymers Used for Femtosecond Direct Laser Writing [PDF]

ACS Omega
Renan Cunha, João V. P. Valverde, Leonardo De Boni, Lino Misoguti, Cleber Renato Mendonça   +4 more
doaj   +2 more sources

Formation of plasmon-exciton nanostructures based on quantum dots and metal nanoparticles with a nonlinear optical response

Конденсированные среды и межфазные границы, 2023
The establishment of the conditions for the formation of nanostructures with plasmon-exciton interaction based onquantum dots and plasmonic nanoparticles that provide unique nonlinear optical properties is an urgent task.
Andrey I. Zvyagin, Tamara A. Chevychelova, Aleksey S. Perepelitsa, Mikhail S. Smirnov, Oleg V. Ovchinnikov   +4 more
doaj   +1 more source

Femtosecond Optical Nonlinearity of Nanodiamond Suspensions

Applied Sciences, 2021
High pressure-high temperature (HP-HT) nanodiamonds and detonation nanodiamonds have unique optical properties and are promising materials for various applications in photonics.
Gennady M. Mikheev, Viatcheslav V. Vanyukov, Tatyana N. Mogileva, Konstantin G. Mikheev, Alexander N. Aleksandrovich, Nicholas A. Nunn, Olga A. Shenderova   +6 more
doaj   +1 more source

Size Dependence of the Resonant Third-Order Nonlinear Refraction of Colloidal PbS Quantum Dots

Photonics, 2020
Due to their high resonant third-order nonlinear response, lead sulfide quantum dots (QDs) are potential materials for applications in the field of nonlinear optics.
Ivan D. Skurlov, Evgeniia A. Ponomareva, Azat O. Ismagilov, Sergey E. Putilin, Ilia A. Vovk, Anastasiia V. Sokolova, Anton N. Tcypkin, Aleksandr P. Litvin   +7 more
doaj   +1 more source

Silver Nanoparticles under Nanosecond Pulsed Laser Excitation as an Intensity Sensitive Saturable Absorption to Reverse Saturable Absorption Switching Material

Photonics, 2021
Optical nonlinearity involved switching draws an important consideration in nonlinear optical studies. Based on that, we explored nonlinear absorption processes in silver nanoparticles synthesized by liquid phase laser ablation technique employing a ...
Edappadikkunnummal Shiju, Kaniyarakkal Sharafudeen, T. M. Remya, N. K. Siji Narendran, Palengara Sudheesh, Vijayakumar Sadasivan Nair   +5 more
doaj   +1 more source