scholarly journals All-Optical Nanometric Switch Based on the Directional Scattering of Semiconductor Nanoparticles

2015 ◽  
Vol 119 (33) ◽  
pp. 19558-19564 ◽  
Author(s):  
Braulio García-Cámara ◽  
J. Francisco Algorri ◽  
Alexander Cuadrado ◽  
Virginia Urruchi ◽  
José Manuel Sánchez-Pena ◽  
...  
Keyword(s):  
Semiconductor Nanoparticles ◽  
All Optical

scholarly journals Ultrafast all-optical switching with photonic nanojets and semiconductor nanoparticles

2016 ◽  
Author(s):  
Brandon Born ◽  
Jeffrey D. A. Krupa ◽  
Simon Geoffroy-Gagnon ◽  
Jonathan F. Holzman
Keyword(s):  
Optical Switching ◽  
Semiconductor Nanoparticles ◽  
All Optical ◽  
Photonic Nanojets ◽  
All Optical Switching

scholarly journals Ultrafast All-Optical Switching via Subdiffractional Photonic Nanojets and Select Semiconductor Nanoparticles

ACS Photonics ◽  
2016 ◽  
Vol 3 (6) ◽  
pp. 1095-1101 ◽  
Author(s):  
Brandon Born ◽  
Simon Geoffroy-Gagnon ◽  
Jeffrey D. A. Krupa ◽  
Ilija R. Hristovski ◽  
Christopher M. Collier ◽  
...  
Keyword(s):  
Optical Switching ◽  
Semiconductor Nanoparticles ◽  
All Optical ◽  
Photonic Nanojets ◽  
All Optical Switching

scholarly journals Integration of photonic nanojets and semiconductor nanoparticles for enhanced all-optical switching

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Brandon Born ◽  
Jeffrey D. A. Krupa ◽  
Simon Geoffroy-Gagnon ◽  
Jonathan F. Holzman
Keyword(s):  
Optical Switching ◽  
Semiconductor Nanoparticles ◽  
All Optical ◽  
Photonic Nanojets ◽  
All Optical Switching

scholarly journals Enhanced Optical Properties of Germanate and Tellurite Glasses Containing Metal or Semiconductor Nanoparticles

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
Cid Bartolomeu de Araujo ◽  
Diego Silvério da Silva ◽  
Thiago Alexandre Alves de Assumpção ◽  
Luciana Reyes Pires Kassab ◽  
Davinson Mariano da Silva
Keyword(s):  
Optical Properties ◽  
Energy Transfer ◽  
Rare Earth ◽  
Semiconductor Nanoparticles ◽  
Rare Earth Ions ◽  
Tellurite Glasses ◽  
All Optical ◽  
Gold Nps ◽  
Anti Stokes ◽  
The Rare Earth

Germanium- and tellurium-based glasses have been largely studied due to their recognized potential for photonics. In this paper, we review our recent studies that include the investigation of the Stokes and anti-Stokes photoluminescence (PL) in different glass systems containing metallic and semiconductor nanoparticles (NPs). In the case of the samples with metallic NPs, the enhanced PL was attributed to the increased local field on the rare-earth ions located in the proximity of the NPs and/or the energy transfer from the metallic NPs to the rare-earth ions. For the glasses containing silicon NPs, the PL enhancement was mainly due to the energy transfer from the NPs to the Er3+ions. The nonlinear (NL) optical properties of PbO-GeO2films containing gold NPs were also investigated. The experiments in the pico- and subpicosecond regimes revealed enhanced values of the NL refractive indices and large NL absorption coefficients in comparison with the films without gold NPs. The reported experiments demonstrate that germanate and tellurite glasses, having appropriate rare-earth ions doping and NPs concentration, are strong candidates for PL-based devices, all-optical switches, and optical limiting.

scholarly journals Exploring the scattering directionality and light interaction in nanoparticle dimers of different semiconductors

2017 ◽  
Vol 9 (2) ◽  
pp. 42
Author(s):  
Ricardo Vergaz Benito ◽  
Braulio García-Cámara ◽  
José Francisco Algorri ◽  
Alexander Cuadrado ◽  
José Manuel Sánchez-Pena
Keyword(s):  
Electric Fields ◽  
Silicon Nanoparticles ◽  
Scattered Light ◽  
High Refractive Index ◽  
Semiconductor Nanoparticles ◽  
Optical Antennas ◽  
Ieee Photon ◽  
Starting Point ◽  
All Optical ◽  
Light Interaction

Assuming as a starting point our recent work on a dimer of silicon nanoparticles with light scattering directionality, we have explored the light interaction between the incoming and scattered electric fields in dimers made of other different semiconductors. The scattering directionality is achieved by accomplishing Kerker's conditions. By directing the scattered light towards the gap of the dimer, interferential effects can be used to achieve high or low light intensities as a basis of all-optical nanoswitches. A comparison between dimers of different materials is shown. Full Text: PDF ReferencesR. Gómez-Medina, B. García-Cámara, I. Súarez-Lacalle, F. González, F. Moreno, M. Nieto-Vesperias and J.J. Sáenz, "Electric and magnetic dipolar response of germanium nanospheres: interference effects, scattering anisotropy, and optical forces", J. Nanophoton. 5 053512 (2011). CrossRef B. Rolly, B. Stout and N. Bonod, "Boosting the directivity of optical antennas with magnetic and electric dipolar resonant particles", Opt. Express 20 20376 (2012). CrossRef B. García-Cámara, R. Gómez-Medina, J.J. Sáenz, and B. Sepúlveda, "Sensing with magnetic dipolar resonances in semiconductor nanospheres", Opt. Express 21 23007-23020 (2013). CrossRef B. García-Cámara et al., "All-Optical Nanometric Switch Based on the Directional Scattering of Semiconductor Nanoparticles", J. Phys. Chem. C. 119, 19558?19564 (2015). CrossRef A.I. Barreda, H. Saleh, A. Litman, F. González, J-M. Geffrin, and F. Moreno, "Electromagnetic polarization-controlled perfect switching effect with high-refractive-index dimers and the beam-splitter configuration", Nat. Commun. 8, 13910 (2017). CrossRef R. Vergaz et al., "Control of the Light Interaction in a Semiconductor Nanoparticle Dimer Through Scattering Directionality", IEE Phot. Jour., 8(3), 4501410 (2016) CrossRef B. García-Cámara et al., "Size Dependence of the Directional Scattering Conditions on Semiconductor Nanoparticles", IEEE Photon. Technol. Lett. 27(19), 2059?2062 (2015). CrossRef

Correlation analysis of radiation damage

1978 ◽  
Vol 36 (1) ◽  
pp. 214-215
Author(s):  
R. Hegerl ◽  
A. Feltynowski ◽  
B. Grill
Keyword(s):  
Electron Microscopy ◽  
Independent Random Variables ◽  
Optical Parameters ◽  
Bright Field Image ◽  
Bright Field ◽  
Expectation Value ◽  
All Optical ◽  
Image Element ◽  
Stochastic Series ◽  
The Common

Till now correlation functions have been used in electron microscopy for two purposes: a) to find the common origin of two micrographs representing the same object, b) to check the optical parameters e. g. the focus. There is a third possibility of application, if all optical parameters are constant during a series of exposures. In this case all differences between the micrographs can only be caused by different noise distributions and by modifications of the object induced by radiation.Because of the electron noise, a discrete bright field image can be considered as a stochastic series Pm,where i denotes the number of the image and m (m = 1,.., M) the image element. Assuming a stable object, the expectation value of Pm would be Ηm for all images. The electron noise can be introduced by addition of stationary, mutual independent random variables nm with zero expectation and the variance. It is possible to treat the modifications of the object as a noise, too.

ALL-OPTICAL DIGITAL CIRCUITS

1988 ◽  
Vol 49 (C2) ◽  
pp. C2-459-C2-462 ◽  
Author(s):  
F. A.P. TOOLEY ◽  
B. S. WHERRETT ◽  
N. C. CRAFT ◽  
M. R. TAGHIZADEH ◽  
J. F. SNOWDON ◽  
...  
Keyword(s):  
Digital Circuits ◽  
All Optical
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