Results 31 to 40 of about 18,142 (253)
Spectral modification of mode structures in silver nanoparticle doped Rhodamine 6G [PDF]
Optics and Laser Technology 75(2015) 182-187, 2015 We show in our work that very narrow (FSR~0.09 nm) lasing modes can be formed from rhodamine 6G solution confined within quartz (SiO2) cuvette with suitable pumping scheme by Q switched Nd:YAG laser. With introduction of silver nanoparticles of different concentrations in rhodamine 6G we show that such lasing modes can be modulated as well as tuned in ...
arxiv +1 more source
Journal of Spectroscopy, 2019 In this work, the use of Fe3O4 magnetic nanoparticles in the adsorption of rhodamine 6G solution was evaluated via absorbance and fluorescence spectroscopy using the UV-Vis spectrometer.
Suwaphit Phoemphoonthanyakit +3 more
doaj +1 more source
Low-Threshold and Narrow Linewidth Diffusive Random Lasing in Rhodamine 6G Dye-Doped Polyurethane with Dispersed ZrO$_2$ Nanoparticles [PDF]
J. Opt. Soc. Am. B 31, 2363-2370, (2014), 2015 We report on low-threshold and narrow linewidth intensity feedback random lasing in Rhodamine 6G dye-doped polyurethane with dispersed ZrO$_2$ nanoparticles. Depending on the dye/particle concentration, the lasing threshold is (6.8--15.4) MW/cm$^2$ and the linewidth is (4--6) nm. The lasing threshold as a function of nanoparticle concentration is found
arxiv +1 more source
Scientific Reports, 2022 Rhodamine 6G (Rh6G) is modified by ethylenediamine to obtain rhodamine with amine functional groups (Rh6G-NH2). Rh6G-NH2 as an initial core is used to bond coumarin derivatives.
Behnam Gheitarani +3 more
doaj +1 more source
Molecules, 2021 A potential hypoxia-sensitive system host-guest complex of three calixarenes (including two with four anionic carboxyl and sulphonate azo fragments on the upper rim and a newly synthesized bis-azo adduct of calixarene in the cone configuration with azo ...
Diana Mironova +8 more
doaj +1 more source
Experimental feasibility of molecular two-photon absorption with isolated time-frequency-entangled photon pairs [PDF]
Phys. Rev. Research 3, 033154 (2021), 2020 Entangled photon pairs have been promised to deliver a substantial quantum advantage for two-photon absorption spectroscopy. However, recent work has challenged the previously reported magnitude of quantum enhancement in two-photon absorption. Here, we present an experimental comparison of sum-frequency generation and molecular absorption, each driven ...
arxiv +1 more source
Evaluation of one-step luminescent cyanoacrylate fuming [PDF]
, 2016 © 2016 Elsevier Ireland Ltd. One-step luminescent cyanoacrylates have recently been introduced as an alternative to the conventional cyanoacrylate fuming methods.
Chadwick, S +5 more
core +1 more source
Vacuum Rabi splitting and strong coupling dynamics for surface plasmon polaritons and Rhodamine 6G molecules [PDF]
Phys. Rev. Lett. 103, 053602 (2009), 2009 We report on strong coupling between surface plasmon polaritons (SPP) and Rhodamine 6G (R6G) molecules, with double vacuum Rabi splitting energies up to 230 and 110 meV. In addition, we demonstrate the emission of all three energy branches of the strongly coupled SPP-exciton hybrid system, revealing features of system dynamics that are not visible in ...
arxiv +1 more source
The Laser Active Element Based on Dye on Porous Alumina
Eurasian Chemico-Technological Journal, 2014 Luminescent properties of Rhodamine 6G in porous alumina matrix have been investigated. From the SEM images the pore diameter is determined to be ~ 50 nm and the distance between the pores to be about 250 nm.
A. K. Zeinidenov +2 more
doaj +1 more source
Photodegradation and self-healing in a Rhodamine 6G dye and Y$_2$O$_3$ nanoparticle-doped polyurethane random laser [PDF]
App. Phys. B 120, 1-12 (2015), 2015 One of the fundamental difficulties in implementing organic dyes in random lasers is irreversible photodegradation of the dye molecules, leading to loss of performance and the need to replace the dye. We report the observation of self-healing after photodegradation in a Rhodamine 6G dye and nanoparticle doped polyurethane random laser.
arxiv +1 more source