Results 21 to 30 of about 2,043,473 (299)

Investigation of Nonlinear Optical Processes in Mercury Sulfide Quantum Dots

Nanomaterials, 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, Ivan A. Shuklov, Alaa A. Mardini, Arturs Bundulis, Andrey I. Zvyagin, Rawda Kholany, Anna A. Lizunova, Jurgis Grube, Anatolijs Sarakovskis, Oleg V. Ovchinnikov, Rashid A. Ganeev   +10 more
doaj   +1 more source

Nonlinear absorption and fluorescence in ZnO and ZnO-Au nanostructures [PDF]

, 2016
This paper investigates whether coupling gold nanoparticles to nanostructured zinc oxide enhances fluorescence emission, to produce efficient nanoscale UV emitters that radiate through nonlinear optical absorption processes.
Esa A. Jaatinen, Shortell, Matthew P., Waclawik, Eric R., Joseph F. S. Fernando, Eric R. Waclawik, Shortell, Matthew P, Sarah L. Walden, Matthew P. Shortell, Jaatinen, Esa A, Walden, Sarah L, Fernando, Joseph F.S., Waclawik, Eric R, Fernando, Joseph FS, Jaatinen, Esa A., Walden, Sarah L.   +14 more
core   +2 more sources

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

Molecules, 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, Nan Li, Yunfei Li, Qingyu Ma, Zheng Xie, Shuyun Zhou   +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

Nanomaterials, 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

Controlling light with light in silver-nanospheres and gold-nanorods colloids

Mundo Nano, 2019
A review is presented on recent research that demonstrate the control of light-by-light in colloids containing silver-nanospheres (Ag-NS) and gold-nanorods (Au-NR).
Cid B. de Araújo, Albert S. Reyna, Nathália Talita C. Oliveira   +2 more
doaj   +1 more source

Nonlinear Terahertz Absorption of Graphene Plasmons [PDF]

Nano Letters, 2016
Subwavelength graphene structures support localized plasmonic resonances in the terahertz and mid-infrared spectral regimes. The strong field confinement at the resonant frequency is predicted to significantly enhance the light-graphene interaction, which could enable nonlinear optics at low intensity in atomically thin, subwavelength devices. To date,
Jadidi, M. M., König-Otto, J. C., Winnerl, S., Sushkov, A. B., Drew, H. D., Murphy, T. E., Mittendorff, M.   +6 more
openaire   +2 more sources

Nonlinearities in silicon optical fibers [PDF]

, 2011
The nonlinear propagation characteristics in a hydrogenated amorphous silicon core optical fiber are investigated to demonstrate ultra-fast all-optical switching by cross-absorption ...
Day, T.D., Peacock, A.C., J. V. Badding, Sazio, P.J.A., P. J. A. Sazio, N. Healy, Watts, R.T., R. T. Watts, Sparks, J.R., Slavík, R., R. Slavík, A. C. Peacock, J. R. Sparks, Mehta, P., Healy, N., Badding, J.V., P. Mehta, T. D. Day   +17 more
core   +1 more source

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

Materials 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

Ultrahigh speed all-optical demultiplexing based on two-photon absorption in a laser diode [PDF]

, 1998
The authors describe how the nonlinear process of two-photon absorption in a commercial laser diode may be used for all-optical demultiplexing in terabit per second optical time division multiplexing networks. Switching windows of 650 fs in duration have
Thomsen, Benn C., Barry, Liam P., Dudley, John M., Harvey, John D.   +3 more
core   +2 more sources

Tunneling induced absorption with competing Nonlinearities [PDF]

Scientific Reports, 2016
AbstractWe investigate tunneling induced nonlinear absorption phenomena in a coupled quantum-dot system. Resonant tunneling causes constructive interference in the nonlinear absorption that leads to an increase of more than an order of magnitude over the maximum absorption in a coupled quantum dot system without tunneling. Resonant tunneling also leads
Yandong Peng, Aihong Yang, Yan Xu, Peng Wang, Yang Yu, Hongju Guo, Tingqi Ren   +6 more
openaire   +2 more sources