Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Journal of Physics and Electronics

Features of the fluorescence spectra of Rhodamine 6G dye in the nanoporous structure of synthetic opals

V. M. Moiseienko, I. Bezsmertnyi

Published Dec 26, 2025• 0 citations
Publisher

Abstract

The influence of the photonic-crystal structure of synthetic opal on the fluorescence spectrum of the laser dye Rhodamine 6G is investigated. Suppression of fluorescence in the stop-band region and a blue shift of the spectrum are observed.
DOI
10.15421/332514

Related papers

Optically excited secondary emission spectra of photonic crystals based on synthetic opals

V. N. Moiseyenko, O. O. Guziy, В. С. Горелик +1 more

The photonic dispersion, the group-velocity dispersion, the effective mass, refractive index, and the spectral distribution of the density of photonic states near the edge of the photonic stop band are numerically calculated in the one-dimensional model for photonic crystals based on synthetic opals. The fluorescence spectra of rhodamine 6G and 2,5-bis(2-benzoxazolyl)hydroquinone molecules infiltrated into a synthetic opal are measured. For both substances, it is observed that the spontaneous emission intensity in the range of the photonic stop band is appreciably suppressed. A blue shift of the fluorescence spectrum of rhodamine 6G molecules is revealed. Secondary emission of synthetic opals infiltrated with colloidal silver is observed in the Stokes range under excitation of opals by radiation at λ = 400 nm. The spectrum of the secondary emission is located in the range 450–590 nm, which contains the stop band and intervals near its edges.

Optics and Spectroscopy•Dec 1, 2008•3 citations

Spontaneous emission of laser dye molecules in synthetic opals under conditions of low dielectric contrast

V. N. Moiseyenko, Mykhailo P. Derhachov, V. G. Shvachich +2 more

Spontaneous emission of laser dye molecules (rhodamine 6G and pironin G) embedded into pores of synthetic opal photonic crystals is studied in the spectral region of 520-650 nm.It is ascertained that the emission spectra are greatly dependent on the photonic stop-band position and the spectral distribution of photon density of states.A dependence of spectral position of the emission band from the dielectric contrast is found.

Ukrainian Journal of Physical Optics•Jan 1, 2010•6 citations

Spontaneous emission spectra of organic molecules in synthetic opal photonic crystals

O. O. Guziy, B. Abusal, V. N. Moiseyenko +2 more

The emission of rhodamine 6G and 2,5-bis(2-benzoxazolyl)hydroquinone molecules embedded in synthetic opal photonic crystals are studied in the spectral range of 520-620 nm.It is found that the intensity of spontaneous emission is suppressed in the spectral region corresponding to the photonic stop band and is amplified on its "blue" side.

Ukrainian Journal of Physical Optics•Jan 1, 2008•1 citation

Observation of inhibited spontaneous emission and stimulated emission of rhodamine 6G in polymer replica of synthetic opal

K. Yoshino, S. B. Lee, Satoshi Tatsuhara +3 more

We report the observation of inhibited spontaneous emission of organic dye rhodamine 6G infiltrated in a polymer replica of synthetic opal as a photonic crystal. The morphology-dependent resonances, superimposed on the broadband emission of rhodamine 6G due to spherical wavelength-sized microcavity enhancement of dye emission, have also been observed.

Applied Physics Letters•Dec 14, 1998•146 citations

Conversion of the luminescence of laser dyes in opal matrices to stimulated emission

Olimkhon K. Alimov, Tasoltan T. Basiev, Yu.V. Orlovskii +2 more

The luminescence and laser characteristics of a synthetic opal matrix filled with organic dyes are studied upon excitation by nanosecond laser pulses. The appearance of stimulated emission in a partially ordered scattering medium is investigated. It is shown that if the luminescence spectrum of a dye (oxazine-17) is located far outside the photonic bandgap of the opal matrix, stimulated emission along a preferential direction in the (111) plane is observed when pumping exceeds a threshold even without an external optical cavity. The stimulated emission spectrum is considerably narrower than the luminescence spectrum and consists of several narrow lines located within the dye luminescence band. If the luminescence spectrum of a dye (rhodamine 6G) overlaps with the photonic bandgap of the opal matrix, a different picture is observed. The loss of radiation in the matrix leads to the red shift of the luminescence spectrum, while the stimulated emission as in the case of oxazine-17 lies is observed within the luminescence band.

Quantum Electronics•Jul 31, 2008•11 citations

Modification of the Spontaneous Emission of Dye Molecules in Photonic Crystals

Eugene P. Petrov, V. N. Bogomolov, I. I. Kalosha +1 more

Modification of the spontaneous emission of dye molecules embedded in artificial opals exhibiting stop bands in the visible range is observed.Molecules embedded in artificial opals show dips in spontaneous emission spectra and modified fluorescence decay kinetics.Results are interpreted in terms of redistribution of the photon density of states.Effects of the multiple reabsorption and reemission of fluorescence photons and interaction of dye molecules with the silica surface are discussed.

Acta Physica Polonica A•Nov 1, 1998•9 citations
The photonic dispersion, the group-velocity dispersion, the effective mass, refractive index, and the spectral distribution of the density of photonic states near the edge of the photonic stop band are numerically calculated in the one-dimensional model for photonic crystals based on synthetic opals. The fluorescence spectra of rhodamine 6G and 2,5-bis(2-benzoxazolyl)hydroquinone molecules infiltrated into a synthetic opal are measured. For both substances, it is observed that the spontaneous emission intensity in the range of the photonic stop band is appreciably suppressed. A blue shift of the fluorescence spectrum of rhodamine 6G molecules is revealed. Secondary emission of synthetic opals infiltrated with colloidal silver is observed in the Stokes range under excitation of opals by radiation at λ = 400 nm. The spectrum of the secondary emission is located in the range 450–590 nm, which contains the stop band and intervals near its edges.
The luminescence and laser characteristics of a synthetic opal matrix filled with organic dyes are studied upon excitation by nanosecond laser pulses. The appearance of stimulated emission in a partially ordered scattering medium is investigated. It is shown that if the luminescence spectrum of a dye (oxazine-17) is located far outside the photonic bandgap of the opal matrix, stimulated emission along a preferential direction in the (111) plane is observed when pumping exceeds a threshold even without an external optical cavity. The stimulated emission spectrum is considerably narrower than the luminescence spectrum and consists of several narrow lines located within the dye luminescence band. If the luminescence spectrum of a dye (rhodamine 6G) overlaps with the photonic bandgap of the opal matrix, a different picture is observed. The loss of radiation in the matrix leads to the red shift of the luminescence spectrum, while the stimulated emission as in the case of oxazine-17 lies is observed within the luminescence band.