Spectral and coherence signatures of threshold in random lasers

• Main Authors: Deming, Liu,, Sandhya, Clement,, David W., Coutts,, Ewa M., Goldys,, Judith M., Dawes,, Wan Zakiah, Wan Ismail,
• Format: Article
• Language: en_US
• Published: Iop Publishing Ltd 2015
• Subjects: Random Lasers; Lasing Threshold; Emission Spectra; Coherence properties
• Online Access: http://ddms.usim.edu.my/handle/123456789/8410

We investigated the spectral and coherence signatures of threshold in random lasers with incoherent feedback consisting of alumina colloidal nanoparticles suspended in rhodamine 6G methanol solution under nanosecond-pulsewidth pumping, based on measurement of temporal and spatial coherence propertie...