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) |
|---|---|
| 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
- Instrumentation
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
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