Results 11 to 20 of about 62,745 (215)

Nonlinear Optical Characterization of InP@ZnS Core-Shell Colloidal Quantum Dots Using 532 nm, 10 ns Pulses

open access: yesNanomaterials, 2021
InP@ZnS core-shell colloidal quantum dots (CQDs) were synthesized and characterized using the z-scan technique. The nonlinear refraction and nonlinear absorption coefficients (γ = −2 × 10−12 cm2 W−1, β = 4 × 10−8 cm W−1) of these CQDs were determined ...
Rashid A. Ganeev   +5 more
doaj   +1 more source

GHz Compact Laser Enabled by GaSb Nanowires as Saturable Absorbers

open access: yesAdvanced Photonics Research, 2023
Owing to the narrow bandgap and excellent optoelectronic properties, III‐Sb nanowires (NWs) enable efficient optical response from near‐infrared to mid‐infrared, making them ideal candidates for broadband optical modulation.
Yanxue Yin   +7 more
doaj   +1 more source

Effect of heavy metals (Ni, Cu, Pb) doped ZnO on the nonlinear optical properties

open access: yesMaterials Research Express, 2020
In this paper, the non-linear optical properties of undoped and doped ZnO thin films were investigated. The films were doped with Ni, Pb, and Cu. an increase in the refractive index against wavelength is apparent for all films up to a certain value of ...
Abeer Salah, Ahmed A Aboud, A M Saad
doaj   +1 more source

Interfacial Charge Transfer and Ultrafast Photonics Application of 2D Graphene/InSe Heterostructure

open access: yesNanomaterials, 2022
Interface interactions in 2D vertically stacked heterostructures play an important role in optoelectronic applications, and photodetectors based on graphene/InSe heterostructures show promising performance nowadays.
Jialin Li   +6 more
doaj   +1 more source

Investigation of Nonlinear Optical Processes in Mercury Sulfide Quantum Dots

open access: yesNanomaterials, 2022
The authors report the third-harmonic generation, nonlinear refraction, and nonlinear absorption in HgS quantum dot (QD) suspensions and films using the nanosecond and femtosecond pulses.
Vyacheslav V. Kim   +10 more
doaj   +1 more source

Nonlinear Optical Studies of Gold Nanoparticle Films

open access: yesNanomaterials, 2019
Gold films are widely used for different applications. We present the results of third- and high-order nonlinear optical studies of the thin films fabricated from Au nanoparticle solutions by spin-coating methods.
Anuradha Rout   +7 more
doaj   +1 more source

Siloxene Nanosheets and Their Hybrid Gel Glasses for Broad-Band Optical Limiting

open access: yesMolecules, 2023
With the development of laser technology, the research of novel laser protection materials is of great significance. In this work, dispersible siloxene nanosheets (SiNSs) with a thickness of about 1.5 nm are prepared by the top-down topological reaction ...
Xugui Lv   +5 more
doaj   +1 more source

Investigations on the Nonlinear Optical Properties of 0D, 1D, and 2D Boron Nitride Nanomaterials in the Visible Spectral Region

open access: yesNanomaterials, 2023
In recent years, boron nitride nanomaterials have attracted increasing attention due to their unique properties such as high temperature stability and high thermal conductivity.
Stefanie Dengler, Bernd Eberle
doaj   +1 more source

Using Femtosecond Laser Pulses to Explore the Nonlinear Optical Properties of Au NP Colloids That Were Synthesized by Laser Ablation

open access: yesNanomaterials, 2022
In this study, we experimentally investigated the nonlinear optical properties of Au nanoparticles (Au NPs) that were prepared in pure distilled water using the laser ablation method.
Mohamed Ashour   +5 more
doaj   +1 more source

Polarization Z-Scan Studies Revealing Plasmon Coupling Enhancement Due to Dimer Formation of Gold Nanoparticles in Nematic Liquid Crystals

open access: yesMicromachines, 2023
We investigate the plasmon coupling of gold nanoparticle (AuNP) dimers dispersed in a nematic liquid crystal matrix using the polarization z-scan technique.
Shengwei Wang   +3 more
doaj   +1 more source

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