Optically pumped surface-emitting lasing using self-assembled block-copolymer-distributed Bragg reflectors

Jongseung Yoon; Wonmok Lee; Edwin L Thomas

doi:10.1021/nl061490h

Optically pumped surface-emitting lasing using self-assembled block-copolymer-distributed Bragg reflectors

Nano Lett. 2006 Oct;6(10):2211-4. doi: 10.1021/nl061490h.

Authors

Jongseung Yoon¹, Wonmok Lee, Edwin L Thomas

Affiliation

¹ Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.

PMID: 17034085
DOI: 10.1021/nl061490h

Abstract

A thin-film organic laser cavity using a block-copolymer-based one-dimensional (1D) photonic crystal was fabricated. Polymeric distributed Bragg reflectors (DBRs) were prepared through the self-assembly of a lamellar-forming poly(styrene-b-isoprene) (PS-b-PI) diblock copolymer having a 1D photonic stop band overlapping with the fluorescence spectrum of a gain medium. Optically pumped surface-emitting lasing was obtained using poly(methyl methacrylate) (PMMA) doped with 1,4-di-(2-methylstyryl)benzene (Bis-MSB) as an organic gain medium and the polymeric self-assembled DBR as a spectral-band selective feedback element.

Publication types

Evaluation Study
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Crystallization / methods
Equipment Design
Equipment Failure Analysis
Lasers*
Light
Nanotechnology / instrumentation*
Nanotechnology / methods
Polymers / chemistry*
Polymers / radiation effects
Refractometry / instrumentation*
Refractometry / methods
Surface Properties

Substances

Polymers