Abstract
We experimentally demonstrated a green liquid laser at the wavelength of 570 nm, utilizing the optical gain of vitamin B2 in a highly polar organic solvent, and proposed an efficient method to enhance its lasing efficiency by adding DNA-lipid complex (DNA-CTMA) in the solution. Optical properties of vitamin B2 in the hexafluoro-2-propanol solvents were investigated by adding various amounts of DNACTMA in terms of the UV-visible absorbance, the visible emission, and the fluorescence lifetime. A Fabry-Perot cavity was built to obtain the laser oscillation at 570 nm using a pulsed pump source at the wavelength of 450 nm, 5 ns pulse duration, and 10 Hz repetition rate. By adding DNA-CTMA, both the output power and slope efficiency were enhanced along with a significant reduction of the lasing threshold pump power. The proposed scheme could open new potential for highly efficient biolasers.
Original language | English |
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Pages (from-to) | 4021-4024 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 43 |
Issue number | 16 |
DOIs | |
Publication status | Published - 2018 Aug 15 |
Bibliographical note
Funding Information:Funding. National Research Foundation of Korea (NRF) (NRF-2012M3A7B4049800); Ministry of Science, ICT and Future Planning (MSIP) (IITP 2014-3-00524).
Funding Information:
National Research Foundation of Korea (NRF) (NRF-2012M3A7B4049800); Ministry of Science, ICT and Future Planning (MSIP) (IITP 2014-3-00524).
Publisher Copyright:
© 2018 Optical Society of America.
All Science Journal Classification (ASJC) codes
- Atomic and Molecular Physics, and Optics