Results 31 to 40 of about 2,929 (285)

Tunable optical nonlinearity of indium tin oxide for optical switching in epsilon-near-zero region

open access: yesNanophotonics, 2022
The propagation of light in the epsilon-near-zero (ENZ) region of materials exhibits intriguing linear and nonlinear optical phenomenon that have been extensively exploited for a plethora of applications. Here, we show that the optical properties as well
Lau Kuen Yao   +4 more
doaj   +1 more source

Formation and Energy Exchange of Vector Dark Solitons in Fiber Lasers

open access: yesIEEE Photonics Journal, 2015
The mutual energy-exchange interactions in two orthogonally polarized components of vector dark soliton, which is automatically formed in a normal-dispersion fiber laser cavity in the presence of reverse saturable absorption, and dissipative cavity ...
Jun Guo   +4 more
doaj   +1 more source

Surface Plasmon Resonance Dependent Third-Order Optical Nonlinearities of Silver Nanoplates

open access: yesPhotonics, 2021
A systematic study of the surface plasmon resonance (SPR)-dependent nonlinear optical response of Ag nanoplates is presented and discussed. The Ag nanoplates were synthesized using the well-known seed-mediated growth method.
Marcello Condorelli   +6 more
doaj   +1 more source

Nonlinear optical studies of calcium tartrate crystals

open access: yesJournal of Taibah University for Science, 2019
Calcium Tartrate crystals were synthesized using sol–gel technique. Linear optical studies of the crystals were carried out in the UV–Vis-NIR spectral range.
I. Rejeena   +5 more
doaj   +1 more source

Ether-linked porphyrin covalent organic framework with broadband optical switch

open access: yesiScience, 2021
Summary: It is still a challenge to design and synthesize novel switchable optical materials with ultrafast nonlinear optical (NLO) response in a broad spectral range.
Zhiwei Liu   +6 more
doaj   +1 more source

Tunable nonlinear optical responses of few-layer graphene through lithium intercalation

open access: yesNanophotonics, 2021
Intercalation has been demonstrated to be a powerful tool for tuning the physical and chemical properties of two-dimensional (2D) materials, providing the highest possible doping level and an ideal system to study various electronic states. In this work,
Zhang Chenxi   +5 more
doaj   +1 more source

Exploration of Optical Properties of Novel Pyrene Derivatives Modified by Click Functionalization

open access: yesCrystals, 2022
A simple synthetic method was designed, in which the Sonogashira coupling reaction and [2+2] cycloaddition click reaction with high yield were performed on 1-bromopyrene to obtain several novel pyrene derivatives.
Yang Yu   +7 more
doaj   +1 more source

Observation of Largely Enhanced Reverse Saturable Absorption in Bi2Se3 Doped PMMA Thin Film

open access: yes, 2022
We characterize the nonlinear absorption property of PMMA/Bismuth Selenide (Bi2Se3) composite employing the Z-scan technique. A substantial enhancement of reverse saturable absorption is revealed with the increase in doping concentration of the ...
Choubey, Priyanka   +4 more
core   +1 more source

Optical Saturable Absorption In Gold Nanoparticles

open access: yes, 2008
In this work, we present the experimental study of the nonlinear absorption of gold nanospheres and nanorods in aqueous suspension, using picosecond white-light supercontinuum open-aperture Z-scan.
Wood, Erin Leigh   +3 more
core   +2 more sources

Nonlinear optical absorption and optical limiting of olive oil by using Z-scan technique [PDF]

open access: yesJES: Journal of Engineering Sciences
Olive oil is classified as an organic chemical that possesses intriguing nonlinear optical characteristics. As a result, it is an appealing option for usage in photonic applications.
Abeer Salah, Ahmed Saad, Gamal Afifi
doaj   +1 more source

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