Structured light using carbon nanostructures driven by Kerr nonlinearities and a magnetic field

Author(s):  
Eric A. Hurtado-Aviles ◽  
Maria Vila ◽  
Juan José Vilatela ◽  
Hilario Martines-Arano ◽  
Jhovani Bornacelli ◽  
...  

A substantial influence of a magnetic field on the third-order nonlinear optical properties exhibited by aggregated networks of aligned carbon nanotubes (CNT) is reported by systematic measurements. A two-wave mixing...

Photonics ◽  
2020 ◽  
Vol 7 (3) ◽  
pp. 54 ◽  
Author(s):  
Samuel Morales-Bonilla ◽  
Cecilia Mercado-Zúñiga ◽  
Juan Pablo Campos-López ◽  
César Carrillo-Delgado ◽  
Claudia Lizbeth Martínez-González ◽  
...  

A strong contrast in the third-order nonlinear optical effects exhibited by hierarchical nanostructures explored in a bidirectional optical circuit is reported. The samples were integrated by multiwall carbon nanotubes and platinum-decorated carbon nanotubes synthetized by an aerosol pyrolysis technique and followed by a chemical vapor deposition method. Coupled and decoupled third-order nonlinear optical properties of the nanocomposites were studied. A nanosecond two-wave mixing experiment at 532 nm wavelength was conducted to analyze the optical Kerr effect in the samples. Multi-photonic interactions were evaluated by a single-beam transmittance as a function of input irradiance and volume fraction of the nanoparticles integrated in the nanohybrids. A two-photon absorption process was identified as the main physical mechanism responsible for the anisotropy in the observed optical nonlinearities. Random carbon nanotube networks in film form were put on top of platinum-decorated carbon nanotubes in order to build up a bilayer sample featuring optical selectivity. The switching of optical signals in propagation through the samples was obtained by an orientation-selectable optical transmittance. Unidirectional optically controlled laser pulses dependent on irradiance and polarization in a two-wave mixing was proposed with potential nanophotonic and nanoelectronic applications. The design of signal processing functions driven by nanohybrid platforms can be contemplated.


2015 ◽  
Vol 44 (8) ◽  
pp. 819003 ◽  
Author(s):  
谭云龙 TAN Yun-long ◽  
朱宝华 ZHU Bao-hua ◽  
王记 WANG Ji ◽  
戴树玺 DAI Shu-xi ◽  
顾玉宗 GU Yu-zong

1992 ◽  
Vol 247 ◽  
Author(s):  
James S. Shirk ◽  
J. R. Undle ◽  
Steven R. Flom ◽  
F. J. Bartoli ◽  
Arthur W. Snow

ABSTRACTThis paper discusses the third-order nonlinear optical (NLO) properties of substituted phthalocyanines measured by time-resolved degenerate four-wave mixing at 1064 nm. The study explores optical pumping as a mechanism contributing to a large third-order optical nonlinearity in one member of this interesting class of NLO materials, PbPc(CP)4.


2010 ◽  
Vol 4 (3) ◽  
pp. 185-190
Author(s):  
Oksana Nadtoka ◽  

The new photochromic polymers based on methacrylic azoesters were synthesized. The azobenzene side chains of obtained polymers contain different groups of both acceptor and donor nature as well as flexible alkyl spacer. The third order nonlinear optical susceptibilities (3) of the studied solutions were measured by degenerating four wave mixing (DFWM) method. As a result, the enhancement of the molecular conjugation and the high NLO chromophore concentration in the molecular chain contribute much to heightening the third-order NLO effect. The electronic effect of the substituent on the azobenzol group and the push–pull electronic structure contributes much to enhancing the NLO property


2012 ◽  
Vol 476-478 ◽  
pp. 1237-1240
Author(s):  
Zhao Hui Jin ◽  
Hua Jing Gao ◽  
Yong Wu Han

Stretch-oriented cyanine-dye-doped poly(vinyl alcohol) (PVA) films were prepared at temperatures above the glass transition temperature of PVA. The optical absorption spectra of the stretch-oriented films exhibited an anisotropy. The third-order nonlinear optical susceptibilities of the stretch-oriented films were measured parallel and perpendicular to the stretching direction by the resonant femtosecond degenerate four-wave mixing (DFWM) technique, and a high anisotropic X(3) was observed for the uniaxially stretch-oriented cyanine-dye-doped PVA films.


1989 ◽  
Vol 173 ◽  
Author(s):  
David W. Polis ◽  
Mamoun M. Bader ◽  
Larry R. Dalton

ABSTRACTIn order to discern the source of the third order nonlinear optical (NLO) phenomenon both morphological and electronic considerations are required. A series of styrene copolymers with varying amounts of p-aminostyrene or p-chloromethylstyrene were prepared as anchoring sites for chemically reactive electrophilic and nucleophilic dyes. For comparison, the same dyes were incorporated into composites of polycarbonate. Preliminary degenerate four wave mixing results for all materials indicate that the copolymeric support allowed incorporation of greater amounts of electroactive units, versus composites, and hence allowed high third order nonlinear responses (X(3)/α of approximately 10−13 esu cm). Third order NLO responses were absent in some composite systems due to limited solubility and/or phase separation difficulties.


2007 ◽  
Vol 1 (3) ◽  
pp. 131-135
Author(s):  
Vitaliy Smokal ◽  
◽  
Oksana Krupka ◽  
Aleksey Kolendo ◽  
Beata Derkowska ◽  
...  

New methacrylic monomers, their polymers with benzylidene fragment were synthesized. Structures of all compounds were determined by HNMR, UV- spectroscopies. The third order nonlinear optical properties of oxazolone, thiazolidinone and thiohydantoin containing compounds were investigated in solutions using degenerate four wave mixing (DFWM) method at 532 nm.


Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1886
Author(s):  
Geselle García-Beltrán ◽  
Cecilia Mercado-Zúñiga ◽  
Christopher René Torres-SanMiguel ◽  
Martín Trejo-Valdez ◽  
Isaela Villalpando ◽  
...  

Within this work are analyzed third-order nonlinear optical properties with a potential influence on the dynamic mechanics exhibited by metal/carbon nanofluids. The nanofluids were integrated by multiwall carbon nanotubes decorated with Ag nanoparticles suspended in ethanol or in acetone. Optical third-order nonlinearities were experimentally explored by vectorial two-wave mixing experiments with a Nd-YAG laser system emitting nanosecond pulses at a 532 nm wavelength. An optically induced birefringence in the metal/organic samples seems to be responsible for a significant modification in density and compressibility modulus in the nanosystems. The measured nonlinear refractive index was associated with a thermal process together with changes in density, compressibility modulus and speed of sound in the samples. Nanofluid diffusivity was studied to characterize the dynamic concentration gradients related to the precipitation of nanostructures in the liquid solutions. The evolution of the nanoparticle density suspended in the nanofluids was considered as a temporal-resolved probabilistic system. It is stated that the incorporation of Ag nanoparticles in carbon nanotubes produces strong mechanical changes in carbon-based nanofluids. According to numerical simulations and optical evaluations, immediate applications for developing dynamic nanoantennas optical logic gates and quantum-controlled metal/carbon systems can be contemplated.


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