Tunable random lasing emissions by manipulating plasmonic coupling strengths on flexible substrates

Ting Wei Yeh, Chun Yang Chou, Zu Po Yang, Nguyen Thi Bich Hanh, Yung Chi Yao, Meng Tsan Tsai, Hao Chun Kuo, Ya Ju Lee*


研究成果: 書貢獻/報告類型會議論文篇章


A random laser is a unique system in which an assembly of disordered scatters is distributed all over the gain medium to sustain the required optical feedbacks by multiple scatterings for the stimulation of lasing action. Due to the absence of well-defined resonance cavity or rigid alignment of optical elements, it is hence difficult to control the random lasing emissions. In this study, we experimentally demonstrated a flexible random laser fabricated on the polyethylene terephthalate (PET) substrate with a high degree of tunability in lasing emissions. Random lasing wavelength is blue-shifted monolithically with the increasing of bending strains exerted on the PET substrate, and the maximum shift of lasing wavelength of ~15 nm was achieved as a 50% bending strain is exerted on the PET substrate. Such observation is highly repeatable and reversible, and it validates that we are able to control the lasing wavelengths by simply bending the flexible substrate. The result herein shows a great advance for the applications of flexible optoelectronic devices, including wearable devices, ultrathin display, and health sensors.

主出版物子標題Applications and Technology, CLEO_AT 2018
發行者Optica Publishing Group (formerly OSA)
出版狀態已發佈 - 2018
事件CLEO: Applications and Technology, CLEO_AT 2018 - San Jose, 美国
持續時間: 2018 5月 132018 5月 18


名字Optics InfoBase Conference Papers
Part F92-CLEO_AT 2018


會議CLEO: Applications and Technology, CLEO_AT 2018
城市San Jose

ASJC Scopus subject areas

  • 電子、光磁材料
  • 材料力學


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