Tunable and flexible solvent-free liquid organic distributed feedback lasers

Ju Hyung Kim, Munetomo Inoue, Li Zhao, Takeshi Komino, Soonmin Seo, Jean Charles Ribierre, Chihaya Adachi

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


We report on optically pumped blue, green, and red liquid organic distributed feedback (DFB) lasers based on solvent-free fluidic organic semiconductors, and prepared on highly flexible corrugated polymeric patterns. By the appropriate selection of laser dyes doping a liquid 9-(2-ethylhexyl)carbazole host, the lasing wavelength is effectively tuned across the visible spectrum via a cascade energy transfer scheme. We also demonstrate a mechanical tunability of the flexible liquid DFB laser emission, which is due to the deformation of the high-aspect ratio DFB grating under bending. Overall, this work provides an important step in the development of flexible liquid organic optoelectronic devices.

Original languageEnglish
Article number053302
JournalApplied Physics Letters
Issue number5
Publication statusPublished - Feb 2 2015

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Tunable and flexible solvent-free liquid organic distributed feedback lasers'. Together they form a unique fingerprint.

Cite this