A tunable random laser based on lotus leaf

Xueyang Li; Yuxi Jia; Ying Chen; Jingwei Guo; Yuqi Jin; Fengting Sang

doi:10.1117/12.2564361

17 April 2020 A tunable random laser based on lotus leaf

Xueyang Li, Yuxi Jia, Ying Chen, Jingwei Guo, Yuqi Jin, Fengting Sang

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 1145532 (2020) https://doi.org/10.1117/12.2564361
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

A tunable random laser with a bendable poly (dimethylsiloxane) (PDMS) substrate was described. The substrate is prepared based on soft lithography from lotus leaf, which have the similar surface structure with lotus leaf such as micropapilla. The micro-papilla on the surface of the substrate will provide efficient multiple scattering for the photon generated from gain medium, and the coherent random lasing is emerging because photon form closed-loop path among micropapilla via the scattering. The wavelength of the random laser emission spectrum can be tuned as wide as 26.0 nm by changing the pump position due to the diverse distribution of the micro-scale features on the soft substrate. The random laser provides a promising solution toward the realization of many laser based applications such as integrating optical biosensors on chips, probing micro-scale structural alterations and developing a multi-color even white random laser.

Citation Download Citation

Xueyang Li, Yuxi Jia, Ying Chen, Jingwei Guo, Yuqi Jin, and Fengting Sang "A tunable random laser based on lotus leaf", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 1145532 (17 April 2020); https://doi.org/10.1117/12.2564361

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