Document Type
Journal Article
Department/Unit
Department of Physics
Title
Spatially variant color light source using amplified spontaneous emission from organic thin films
Language
English
Abstract
© 2015 Optical Society of America.Color tunable light source has great potential for display, lighting, bio-imaging, and so on. Current broadband light sources including halogen lamp, super continuum laser, inorganic and organic light emission diode have been widely used for these purposes. However, each of them has their own limitations in beam divergence, cost and device size. In this work, we demonstrate a spatially variant light source with tunable color emission property by using two cascaded organic thin films, which emit blue and green light respectively under optical pumping. By spatially selecting the overlapping of the directional amplified spontaneous emission from the cascaded films, we show that the color of light emission can be continuously tuned from blue, white to green. The method we propose here also indicates a potential way to design stripe light source for high resolution bio-imaging.
Publication Date
2015
Source Publication Title
Optical Materials Express
Volume
5
Issue
3
Start Page
497
End Page
502
Publisher
Optical Society of America
DOI
10.1364/OME.5.000497
Link to Publisher's Edition
http://dx.doi.org/10.1364/OME.5.000497
ISSN (print)
21593930
ISSN (electronic)
21593930
Recommended Citation
Chan, K. L., G. X. Li, and K. W. Cheah. "Spatially variant color light source using amplified spontaneous emission from organic thin films." Optical Materials Express 5.3 (2015): 497-502.