Random laser action from flexible biocellulose-based device

被引：43

作者：

dos Santos, Moliria V. ^{[1
]}

Dominguez, Christian T. ^{[2
,3
]}

Schiavon, Joao V. ^{[1
]}

Barud, Hernane S. ^{[1
]}

de Melo, Luciana S. A. ^{[3
]}

Ribeiro, Sidney J. L. ^{[1
]}

Gomes, Anderson S. L. ^{[2
]}

de Araujo, Cid B. ^{[2
]}

机构：

[1] Univ Estado Sao Paulo UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil

[2] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE, Brazil

[3] Univ Fed Pernambuco, Lab Opt Biomed & Imagem, BR-50740530 Recife, PE, Brazil

来源：

JOURNAL OF APPLIED PHYSICS | 2014年 / 115卷 / 08期

关键词：

BACTERIAL CELLULOSE; MICROBIAL CELLULOSE; ESCHERICHIA-COLI; EMISSION;

D O I：

10.1063/1.4866686

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate random lasing action in flexible bacterial cellulose (BC) membrane containing a laser-dye and either dielectric or metallic nanoparticles (NPs). The novel random laser system consists of BC nanofibers attached with Rhodamine 6G molecules and having incorporated either silica or silver NPs. The laser action was obtained by excitation of the samples with a 6 ns pulsed laser at 532 nm. Minimum laser threshold of approximate to 0.7 mJ/pulse was measured for the samples with silica NPs, whereas a laser threshold of 2.5 mJ/pulse for a system based on silver NPs was obtained. In both cases a linewidth narrowing from approximate to 50 to approximate to 4 nm was observed. Potential applications in biophotonics and life sciences are discussed for this proof-of-concept device. (C) 2014 AIP Publishing LLC.

引用

页数：5

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