Distributed feedback lasing from dye-doped glass films using photopatterned gold nanoparticles

被引：8

作者：

Fukushima, M ^{[1
]}

Yanagi, H

Hayashi, S

Suganuma, N

Taniguchi, Y

机构：

[1] Kobe Univ, Fac Engn, Grad Sch Sci & Technol, Nada Ku, Kobe, Hyogo 6570871, Japan

[2] Shinshu Univ, Fac Textile & Technol, Nagano 3868567, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2005年 / 97卷 / 10期

关键词：

D O I：

10.1063/1.1886270

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We found a tunable lasing action of dye-doped glass films using a distributed feedback (DFB) resonator composed of gold (Au) nanoparticles. The Au-DFB resonators having various periodic spacings of 400-600 nm were fabricated by photoreduction of chloroauric ions doped in silica/titania (SiO2/TiO2) sol-gel films using two-beam interference of a He-Cd laser. After lamination of a SiO2/TiO2 film containing Rhodamine B (RB), the device was pumped with a frequency-doubled yttrium aluminum garnet laser. As compared to the amplified spontaneous emission [full width at half maximum (FWHM) similar to 20 nm] from a RB-doped film without DFB, the laminated device indicated feedback-gained narrowing of the emission (FWHM similar to 1 nm). Moreover, their peak wavelengths were shifted according to the tuned spacing of the Au-DFB resonator. (c) 2005 American Institute of Physics.

引用

页数：3

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