✦ LIBER ✦
Evidence of birefringence and anomalous electromagnetic-pulse propagation in an organic light-emitting diode
✍ Scribed by Sheng-Chieh Tai; Jyh-Long Chern; Yueh-Chuan Huang; Mei-Rurng Tseng; Hsien-Kuang Lin
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 87 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
High-speed electromagnetic characteristics of an organic light-emitting diode (OLED) are explored in this paper. When a highfrequency (ϳ14 GHz) microwave pulse is injected into an OLED, the pulse is split into two peaks: one peak is delayed by 1.725 ns and another one is advanced by 0.183 ns, which also suggests the existence of an extremely low-speed group velocity. The effective thickness of the OLED sample is ϳ355.8 nm and, as a result, the effective index of refraction is ϳ10 7 when the splitting phenomenon occurs.