Abstract
We observed laser emission in whispering gallery modes using a microring composed of a light-emitting semiconducting polymer poly[2,5-bis-(2′-ethylhexyloxy)-p-phenylenevinylene] (BEH-PPV) coated on an etched fiber under transient and quasi steady-state pumping conditions. The threshold for laser oscillation was 1 mJ/cm2 (0.1 MW/cm2) and 30 μJ/cm2 (300 MW/cm2) for nanosecond and femtosecond excitation, respectively. The laser output showed superlinear dependence on the excitation energy above the threshold. The demonstration of lasing under quasi steady-state pumping shows the possibility to develop electrically pumped polymer lasers. Preliminary results on the line narrowing in tripheny dilamine (TPD) films under nanosecond optical pumping are also presented.
Original language | English (US) |
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Pages (from-to) | 211-216 |
Number of pages | 6 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3281 |
DOIs | |
State | Published - 1998 |
Event | Polymer Photonic Devices - San Jose, CA, United States Duration: Jan 28 1998 → Jan 30 1998 |
Keywords
- BEH-PPV
- Electroluminescence
- Laser
- Microring
- N, N′-diphenyl-N,N′-bis(3-methylphenyl)-1,1′-biphenyl-4,4′- diamine
- Organic materials
- Poly[2,5-bis-(2′-ethylhexyloxy)-p-phenylenevinylene]
- TPD
- Whispering gallery mode
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering