Whispering-gallery-mode microring laser using a conjugated polymer
Kawabe, Y. ; Spiegelberg, Ch. ; Schülzgen, A. ; Nabor, M. F. ; Kippelen, B. ; Mash, E. A. ; Allemand, P. M. ; Kuwata-Gonokami, M. ; Takeda, K. ; Peyghambarian, N.
Woodbury, NY : American Institute of Physics (AIP)
Published 1998
Woodbury, NY : American Institute of Physics (AIP)
Published 1998
| ISSN: |
1077-3118
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
We observed laser emission in whispering gallery modes using a microring composed of a semiconducting polymer poly[2,5-bis-(2′-ethylhexyloxy)-p-phenylenevinylene coated on an etched fiber under transient and quasisteady-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 quasisteady-state pumping shows the possibility to develop electrically pumped polymer lasers. © 1998 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |