Random laser action from a natural flexible biomembrane-based device. Issue 13 (19th July 2016)

• Record Type: Journal Article
• Authors: Liu, Xiyun; Li, Tingshuai; Yi, Tao; Wang, Chuanke; Li, Jin; Xu, Min; Huang, Dengfeng; Liu, Shenye; Jiang, Shaoen; Ding, Yongkun
• Is Part Of: Journal of modern optics. Volume 63:Issue 13(2016)
• Page Start: 1248
• Page End: 1253
• Publication Date: 2016-07-19
• Subjects: Random lasing action -- eggshell membrane -- incoherent -- redshift -- microfibrils; Optics -- Periodicals; 535
• DOI: 10.1080/09500340.2015.1136002
• Languages: English
• ISSNs: 0950-0340

Abstract

Abstract: Incoherent random lasing action in flexible eggshell membranes infiltrated with rhodamine 6G laser dyes is demonstrated. Laser radiation is achieved by exciting samples with 1-ns pulses at 526 nm. A threshold of 58 μJ/pulse is measured for the samples. The minimum threshold decreases to 35 μJ/pulse after the sample is coated with gold nanoparticles using a magnetron sputtering technique. The peaks of emission spectra are observed to redshift from 576 to 596 nm as dye concentration rises from 0.03 to 0.6 wt%. A linewidth of approximately 5 nm is obtained for most samples. This study is expected to offer a new way to induce lasing emission using biological microfibrils, and enriches basic knowledge of biophotonics.