We report on the optical characterization of three-dimensional opal-like photonic crystals made by self-organized nanospheres of poly[styrene-(co-2-hydroxyethyl methacrylate)] having a face centred cubic (fcc) structure oriented along the [111] direction. A detailed optical characterization of the samples is presented using angle resolved reflection spectroscopy in specular geometry. The investigated energies are between a/lambda= 0.5 and a/lambda= 1.5 (where a is the lattice parameter and lambda is the light wavelength), a region in which both first and second-order Bragg diffraction are expected. Some interesting features as branching of the Bragg peak dispersion and high energy reflection peaks are revealed. We compare the experimental data with theoretical calculations using both Bragg diffraction and band structure approach. A comparison with recent results reported in the literature is also presented. (c) 2008 Optical Society of America.

Schutzmann, S., Venditti, I., Prosposito, P., Casalboni, M., Russo, M. (2008). High-energy angle resolved reflection spectroscopy on three-dimensional photonic crystals of self-organized polymeric nanospheres. OPTICS EXPRESS, 16(2), 897-907 [10.1364/OE.16.000897].

High-energy angle resolved reflection spectroscopy on three-dimensional photonic crystals of self-organized polymeric nanospheres

PROSPOSITO, PAOLO;CASALBONI, MAURO;
2008-01-01

Abstract

We report on the optical characterization of three-dimensional opal-like photonic crystals made by self-organized nanospheres of poly[styrene-(co-2-hydroxyethyl methacrylate)] having a face centred cubic (fcc) structure oriented along the [111] direction. A detailed optical characterization of the samples is presented using angle resolved reflection spectroscopy in specular geometry. The investigated energies are between a/lambda= 0.5 and a/lambda= 1.5 (where a is the lattice parameter and lambda is the light wavelength), a region in which both first and second-order Bragg diffraction are expected. Some interesting features as branching of the Bragg peak dispersion and high energy reflection peaks are revealed. We compare the experimental data with theoretical calculations using both Bragg diffraction and band structure approach. A comparison with recent results reported in the literature is also presented. (c) 2008 Optical Society of America.
2008
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore FIS/03 - Fisica della Materia
English
Con Impact Factor ISI
Band structure; Nanospheres; Spectroscopy; Three dimensional; Bragg diffraction; Polymeric nanospheres; Photonic crystals; nanosphere; polymer; article; chemical model; chemistry; computer simulation; conformation; fiber optics; instrumentation; materials testing; methodology; particle size; refractometry; spectroscopy; ultrastructure; Computer Simulation; Fiber Optics; Materials Testing; Models, Chemical; Molecular Conformation; Nanospheres; Particle Size; Polymers; Refractometry; Spectrum Analysis
Schutzmann, S., Venditti, I., Prosposito, P., Casalboni, M., Russo, M. (2008). High-energy angle resolved reflection spectroscopy on three-dimensional photonic crystals of self-organized polymeric nanospheres. OPTICS EXPRESS, 16(2), 897-907 [10.1364/OE.16.000897].
Schutzmann, S; Venditti, I; Prosposito, P; Casalboni, M; Russo, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/25667
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