scholarly journals Broadband Nonlinear Optical Response of Nitrogen-Doped Diamond

2021 ◽  
Vol 8 ◽  
Author(s):  
Zhengguo Xiao ◽  
Yu Fang ◽  
Yinglin Song ◽  
Yanchao She ◽  
Changhai Tian ◽  
...  

A nitrogen-doped diamond crystal with (111) orientation was synthesized with an NaN3 additive in the FeNi-C system at a pressure of 6.5 GPa and a temperature of 1,310°C, using the temperature gradient growth (TGG) method. Spectroscopic properties such as the absorption spectrum and the Raman spectrum as well as the Fourier transform infrared (FTIR) spectrum were studied. FTIR spectroscopy of the C-N vibrational modes at 1,344 and 1,130 cm−1 suggested a nitrogen content of 310 ppm. Its nonlinear optical (NLO) response was investigated using the Z-scan technique under the femtosecond regime. Due to the presence of nitrogen defects, the synthesized crystal performed large nonlinear absorption under both 800- and 532-nm wavelength excitations. However, intrinsic diamond only experiences nonlinear refraction under these two wavelength excitations. Its broadband NLO properties indicated that nitrogen-doped diamond crystals were suitable for the application of ultrafast optical devices.

1994 ◽  
Vol 374 ◽  
Author(s):  
Gary L. Wood ◽  
Andrew G. Mott ◽  
Mary J. Miller ◽  
Masato Nakashima ◽  
Joseph F. Roach

AbstractOptical limiting in a solution of tetrabenzporphyrin (TBP) dissolved in tetrahydrofuran (THF) was measured in an f/5 optical focusing arrangement using 532 nm wavelength laser light with a 9 ns pulse duration. The performance of this solution was compared to a variety of other materials. In order to better understand the nonlinear behavior of this material, apertured and unapertured Z-scans were performed. From these measurements it was determined that the excited-state cross section and its ratio to ground-state cross section were large. The nonlinear refraction of this material is made up of contributions from thermal density change and population redistribution. Limiter performance was modeled in an f/64 limiter. The limiter behavior of a slightly modified compound and an additional solvent were measured.


Author(s):  
Nikolaos Liaros ◽  
Ioannis Orfanos ◽  
Ioannis Papadakis ◽  
Stelios Couris

AbstractThe nonlinear optical properties of two graphene derivatives, graphene oxide and graphene fluoride, are investigated by means of the Z-scan technique employing 35 ps and 4 ns, visible (532 nm) laser excitation. Both derivatives were found to exhibit significant third-order nonlinear optical response at both excitation regimes, with the nonlinear absorption being relatively stronger and concealing the presence of nonlinear refraction under ns excitation, while ps excitation reveals the presence of both nonlinear absorption and refraction. Both nonlinear properties are of great interest for several photonics, opto-fluidics, opto-electronics and nanotechnology applications.


2021 ◽  
Vol 129 (12) ◽  
pp. 1583
Author(s):  
Т.А. Чевычелова ◽  
А.И. Звягин ◽  
О.В. Овчинников ◽  
М.С. Смирнов ◽  
А.С. Перепелица

The mechanisms of nonlinear optical response from ensembles of gold nanorods coated with a silicon dioxide (Au / SiO2 NRs) shell are analyzed. The Z-scan method under the action of 10 ns pulses of the second harmonic of a YAG: Nd3 + laser (532 nm) was used to find dependences characteristic of nonlinear absorption and a negative dynamic lens. It is shown that the bleaching of the colloidal solution, which intensifies with increasing pulse energy, is caused by laser destruction of the Au / SiO2 NRs, which occurs due to melting, which is confirmed by theoretical estimates. Negative nonlinear refraction is attributed to the response from spherical nanoparticles (Au NPs) formed upon laser destruction of NRs.


Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Rashid A. Ganeev ◽  
V. S. Popov ◽  
A. I. Zvyagin ◽  
N. A. Lavrentyev ◽  
A. E. Mirofyanchenko ◽  
...  

Abstract Bismuth telluride nanoparticles (NPs) attract attention due to the growth of sensitivity of the Bi2Te3 NPs-containing registrars in the near- and mid-infrared ranges. We describe the synthesis and characterization of these structures and analyze the low-order nonlinear optical properties of the colloidal suspensions and thin films containing Bi2Te3 NPs using 1064 and 532 nm, 10 ns pulses. Colloidal Bi2Te3 NPs demonstrate saturable absorption and positive nonlinear refraction (saturation intensity 7 × 108 W cm−2, nonlinear absorption coefficient β SA = −7 × 10−8 cm W−1, nonlinear refractive index γ = 9 × 10−12 cm2 W−1), while at stronger excitation by 532 nm, 10 ns pulses the reverse saturable absorption dominates over other nonlinear optical processes. We achieved significant growth of the nonlinear optical parameters of the thin films containing these NPs (film thickness l = 60 nm, β SA = −1.2 × 10−4 cm W−1, γ = 5 × 10−7 cm2 W−1 in the case of 532 nm probe radiation and β = −5 × 10−5 cm W−1, γ = 6 × 10−8 cm2 W−1 in the case of 1064 nm probe radiation) compared with colloidal Bi2Te3 NPs and discuss the observed peculiarities of the nonlinear response of Bi2Te3 nanostructures.


Nanomaterials ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 34
Author(s):  
Zhihao Zhang ◽  
Pengchao Li ◽  
Yuzong Gu

It is significant to study the reason that semiconductor material has adjustable third-order optical nonlinearity through crystal form and dimensions are changed. αMnS nanoparticles with different crystal forms and sizes were successfully prepared by one-step hydrothermal synthesis method and their size-limited third-order nonlinear optical property was tested by Z-scan technique with 30 ps laser pulses at 532 nm wavelength. Nanoparticles of different crystal forms exhibited different NLO (nonlinear optical) responses. γMnS had stronger NLO response than αMnS because of higher fluorescence quantum yield. Two-photon absorption and the nonlinear refraction are enhanced as size of nanoparticlesreduced. The nanoparticles had maximum NLO susceptibility which was 3.09 × 10−12 esu. Susceptibility of αMnS increased about nine times than that of largest nanoparticles. However, it was reduced when size was further decreased. This trend was explained by the effects of light induced dipole moments. And defects in αMnS nanoparticles also had effect on this nonlinear process. MnS nanoparticles had potential application value in optical limiting and optical modulation.


2004 ◽  
Vol 34 (1) ◽  
pp. 81-85 ◽  
Author(s):  
R A Ganeev ◽  
A I Ryasnyansky ◽  
V I Redkorechev ◽  
K Fostiropoulos ◽  
G Priebe ◽  
...  

RSC Advances ◽  
2014 ◽  
Vol 4 (76) ◽  
pp. 40152-40160 ◽  
Author(s):  
Irene Papagiannouli ◽  
Athanasios B. Bourlinos ◽  
Aristides Bakandritsos ◽  
Stelios Couris

Nanodiamonds (NDs) and carbon-dots (CDs) suspensions exhibit significant NLO response under both ps and ns laser excitation. NDs exhibit important optical limiting action under nanosecond visible (532 nm) and infrared (1064 nm) laser excitation.


RSC Advances ◽  
2016 ◽  
Vol 6 (88) ◽  
pp. 84854-84859 ◽  
Author(s):  
B. Kulyk ◽  
S. Taboukhat ◽  
H. Akdas-Kilig ◽  
J.-L. Fillaut ◽  
Y. Boughaleb ◽  
...  

Optical and nonlinear optical properties of difluoroboradiazaindacene (BODIPY) models with attached dimethylaminostyryl substituents were studied.


2013 ◽  
Vol 750-752 ◽  
pp. 899-902
Author(s):  
Lin Feng Li ◽  
Hong Yao Xu

A novel nonlinear optical active triazine dye 2-(4-methyl-4-amino-azobenzene )-4-sodium sulfanilate-6-chloro-1,3,5-triazine was synthesized by condensation reaction and characterized by FTIR, 1HNMR, respectively. Their nonlinear optical properties were investigated using 5 ns pulse at 532 nm, which showed excellent nonlinear optical property.


2015 ◽  
Vol 24 (03) ◽  
pp. 1550030 ◽  
Author(s):  
M. Chniti ◽  
C. Cassagne ◽  
J. L. Godet ◽  
G. Boudebs

The D4σ-Z-scan technique is used to evaluate the sign and the magnitude of the nonlinear (NL) refractive index and the NL absorption (NLA) coefficient with a laser delivering single pulses in the picosecond regime at 355 nm, 532 nm and 1064 nm. The NL optical response of the zinc porphyrins (Pph) has been found to be significantly enhanced. The study of the NLA and refraction is performed, taking into account the time dependence and the spectral width of the incident laser. The variations of the NL coefficients as a function of the intensity and the concentration are provided and are found to be linear.


Sign in / Sign up

Export Citation Format

Share Document