Enhancement of the lasing efficiency of vitamin B 2 in a highly polar organic solvent via DNA-lipid complex

Woohyun Jung, Byung Joo Kong, Seongjin Hong, Taeoh Kim, Kyunghwan Oh

Research output: Contribution to journalArticle

Abstract

We experimentally demonstrated a green liquid laser at the wavelength of 570 nm, utilizing the optical gain of vitamin B 2 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 B 2 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 languageEnglish
Pages (from-to)4021-4024
Number of pages4
JournalOptics Letters
Volume43
Issue number16
DOIs
Publication statusPublished - 2018 Aug 15

Fingerprint

riboflavin
lipids
lasing
deoxyribonucleic acid
augmentation
liquid lasers
pumps
power efficiency
wavelengths
repetition
pulse duration
slopes
optical properties
life (durability)
fluorescence
oscillations
cavities
thresholds
output
lasers

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Jung, Woohyun ; Kong, Byung Joo ; Hong, Seongjin ; Kim, Taeoh ; Oh, Kyunghwan. / Enhancement of the lasing efficiency of vitamin B 2 in a highly polar organic solvent via DNA-lipid complex In: Optics Letters. 2018 ; Vol. 43, No. 16. pp. 4021-4024.
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Enhancement of the lasing efficiency of vitamin B 2 in a highly polar organic solvent via DNA-lipid complex . / Jung, Woohyun; Kong, Byung Joo; Hong, Seongjin; Kim, Taeoh; Oh, Kyunghwan.

In: Optics Letters, Vol. 43, No. 16, 15.08.2018, p. 4021-4024.

Research output: Contribution to journalArticle

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