Random laser oscillation from an organic fluorescent dye loaded inside a porous zirconia medium

Yukari Sakurayama; Tsunenobu Onodera; Yasuyuki Araki; Takehiko Wada; Hidetoshi Oikawa

doi:10.1039/d1ra05791j

Random laser oscillation from an organic fluorescent dye loaded inside a porous zirconia medium

Yukari Sakurayama, Tsunenobu Onodera, Yasuyuki Araki, Takehiko Wada, Hidetoshi Oikawa

Division of Organic- and Biomaterials Research

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Porous zirconia medium (PZrM) has been fabricated successfully using polystyrene microparticles (MPs) as templates. The emission spectra of rhodamine B (RhB) [optical amplifying medium] loaded inside PZrM [porous scatterers] were obtained at numerous excitation light intensities. The lasing thresholds (Ith) have been determined experimentally from the variations in the intensity of random laser oscillation peaks, which are suitably separated from the measured emission spectra. Ith is closely related to the pore sizes of PZrM and the added amount of PZrM powder, and it clearly provided the minimum against the pore size. This fact is explained reasonably by the simulation of scattering efficiency on the basis of the Mie scattering theory. Consequently, PZrM as a porous scatterer is superior to Zr MPs from the viewpoint of random laser oscillation.

Original language	English
Pages (from-to)	32030-32037
Number of pages	8
Journal	RSC Advances
Volume	11
Issue number	51
DOIs	https://doi.org/10.1039/d1ra05791j
Publication status	Published - 2021 Sept 8

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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title = "Random laser oscillation from an organic fluorescent dye loaded inside a porous zirconia medium",

abstract = "Porous zirconia medium (PZrM) has been fabricated successfully using polystyrene microparticles (MPs) as templates. The emission spectra of rhodamine B (RhB) [optical amplifying medium] loaded inside PZrM [porous scatterers] were obtained at numerous excitation light intensities. The lasing thresholds (Ith) have been determined experimentally from the variations in the intensity of random laser oscillation peaks, which are suitably separated from the measured emission spectra. Ith is closely related to the pore sizes of PZrM and the added amount of PZrM powder, and it clearly provided the minimum against the pore size. This fact is explained reasonably by the simulation of scattering efficiency on the basis of the Mie scattering theory. Consequently, PZrM as a porous scatterer is superior to Zr MPs from the viewpoint of random laser oscillation.",

author = "Yukari Sakurayama and Tsunenobu Onodera and Yasuyuki Araki and Takehiko Wada and Hidetoshi Oikawa",

note = "Funding Information: The present research was performed with the financial support from the Management Expenses Grant in Tohoku University (National University Corporation). This budget was delivered from MEXT, Japan. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

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T1 - Random laser oscillation from an organic fluorescent dye loaded inside a porous zirconia medium

AU - Sakurayama, Yukari

AU - Onodera, Tsunenobu

AU - Araki, Yasuyuki

AU - Wada, Takehiko

AU - Oikawa, Hidetoshi

N1 - Funding Information: The present research was performed with the financial support from the Management Expenses Grant in Tohoku University (National University Corporation). This budget was delivered from MEXT, Japan. Publisher Copyright: © The Royal Society of Chemistry.

PY - 2021/9/8

Y1 - 2021/9/8

N2 - Porous zirconia medium (PZrM) has been fabricated successfully using polystyrene microparticles (MPs) as templates. The emission spectra of rhodamine B (RhB) [optical amplifying medium] loaded inside PZrM [porous scatterers] were obtained at numerous excitation light intensities. The lasing thresholds (Ith) have been determined experimentally from the variations in the intensity of random laser oscillation peaks, which are suitably separated from the measured emission spectra. Ith is closely related to the pore sizes of PZrM and the added amount of PZrM powder, and it clearly provided the minimum against the pore size. This fact is explained reasonably by the simulation of scattering efficiency on the basis of the Mie scattering theory. Consequently, PZrM as a porous scatterer is superior to Zr MPs from the viewpoint of random laser oscillation.

AB - Porous zirconia medium (PZrM) has been fabricated successfully using polystyrene microparticles (MPs) as templates. The emission spectra of rhodamine B (RhB) [optical amplifying medium] loaded inside PZrM [porous scatterers] were obtained at numerous excitation light intensities. The lasing thresholds (Ith) have been determined experimentally from the variations in the intensity of random laser oscillation peaks, which are suitably separated from the measured emission spectra. Ith is closely related to the pore sizes of PZrM and the added amount of PZrM powder, and it clearly provided the minimum against the pore size. This fact is explained reasonably by the simulation of scattering efficiency on the basis of the Mie scattering theory. Consequently, PZrM as a porous scatterer is superior to Zr MPs from the viewpoint of random laser oscillation.

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JF - RSC Advances

IS - 51

ER -

Random laser oscillation from an organic fluorescent dye loaded inside a porous zirconia medium

Abstract

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