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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 16 — Aug. 15, 2014
  • pp: 4743–4746

Optically pumped distributed feedback dye lasing with slide-coated TiO2 inverse-opal slab as Bragg reflector

Sung Gu Han, Jongchul Lim, Jinsub Shin, Sung-Min Lee, Taiho Park, Jongseung Yoon, Kyoungja Woo, Hyunjung Lee, and Wonmok Lee  »View Author Affiliations

Optics Letters, Vol. 39, Issue 16, pp. 4743-4746 (2014)

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We demonstrate an optical amplification of organic dye within a TiO2 inverse-opal (IO) distributed feedback (DFB) reflector prepared by a slide-coating method. Highly reflective TiO2 IO film was fabricated by slide coating the binary aqueous dispersions of polystyrene microspheres and charge-stabilized TiO2 nanoparticles on a glass slide and subsequently removing the polymer-opal template. TiO2 IO film was infiltrated, in turn, with the solutions of DCM, a fluorescent dye in various solvents with different indices of refraction. Optical pumping by frequency-doubled Nd:YAG laser resulted in amplified spontaneous emission in each dye solution. In accordance with the semi-empirical simulation by the FDTD method, DCM in ethanol showed the best emission/stopband matching for the TiO2 IO film used in this study. Therefore, photo excitation of a DCM/ethanol cavity showed a single-mode DFB lasing at 640 nm wavelength at moderate pump energy.

© 2014 Optical Society of America

OCIS Codes
(140.3490) Lasers and laser optics : Lasers, distributed-feedback
(250.7260) Optoelectronics : Vertical cavity surface emitting lasers
(350.3390) Other areas of optics : Laser materials processing
(160.5298) Materials : Photonic crystals

ToC Category:
Lasers and Laser Optics

Original Manuscript: May 29, 2014
Revised Manuscript: July 4, 2014
Manuscript Accepted: July 5, 2014
Published: August 7, 2014

Sung Gu Han, Jongchul Lim, Jinsub Shin, Sung-Min Lee, Taiho Park, Jongseung Yoon, Kyoungja Woo, Hyunjung Lee, and Wonmok Lee, "Optically pumped distributed feedback dye lasing with slide-coated TiO2 inverse-opal slab as Bragg reflector," Opt. Lett. 39, 4743-4746 (2014)

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