Distributed feedback waveguide laser of organic nano-compound material

Masamitsu Tanaka, Yuji Oki, Daisuke Nagano, Byeong Kwan An, Soo Young Park, Mitsuo Maeda

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The laser action was firstly demonstrated using 1-cyano-trans-1,2-bis-(4'- methylbiphenyl)ethylene (CN-MBE), that enhances its fluorescence from organic nanoparticle. The CN-MBE is not fluorescent and has enhanced fluorescence in aggregated nanoparticle state. CN-MBE doped PMMA film showed fluorescence over 400600nm and spectral narrowed emission at 430nm under pumping with a nanosecond pulsed laser at wavelength of 355nm. CN-MBE:PMMA DFB laser waveguides were successfully fabricated, and lasing wavelength was over 430 to 490nm. CN-MBE:PMMA DFB lasers showed laser threshold of 73J/cm2 at the waveguide size of 15mm100m5m. The output spectra had bandwidth as narrow as 60pm FWHM, and suppressed fluorescence background of less than 0.5%. The maximum peak power and average power were estimated to be 5W and 0.35W, respectively. The durability was as long as 1.7104 shots/waveguide.

Original languageEnglish
Pages (from-to)173-183
Number of pages11
JournalMolecular Crystals and Liquid Crystals
Volume463
Issue number1
DOIs
Publication statusPublished - Feb 1 2006

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this