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2011 | 119 | 2 | 244-246
Article title

Optical and Electrical Noise Characteristics of Side Emitting LEDs

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EN
Abstracts
EN
Low frequency noise characteristics of nitride based blue side emitting diodes have been investigated. It is shown that investigated devices distinguish by 1/f^α-type optical and electrical fluctuations caused by various generation-recombination processes through defects formed generation-recombination centers. At higher frequencies optical shot noise due to random photon emission prevails 1/f^α-type spectrum. The results have shown that low frequency optical and electrical noises are strongly correlated at small current region, but at higher forward current not correlated noise components dominate. Lenses and secondary optics of the investigated devices do not influence output light.
Keywords
EN
Publisher

Year
Volume
119
Issue
2
Pages
244-246
Physical description
Dates
published
2011-02
Contributors
author
  • Radiophysics Dep., Vilnius University, Saulėtekio 9 (III), 10222 Vilnius, Lithuania
author
  • Radiophysics Dep., Vilnius University, Saulėtekio 9 (III), 10222 Vilnius, Lithuania
author
  • Radiophysics Dep., Vilnius University, Saulėtekio 9 (III), 10222 Vilnius, Lithuania
author
  • Radiophysics Dep., Vilnius University, Saulėtekio 9 (III), 10222 Vilnius, Lithuania
  • Radiophysics Dep., Vilnius University, Saulėtekio 9 (III), 10222 Vilnius, Lithuania
author
  • Theoretical Physics Dep., Vilnius University, Saulėtekio 9 (III), 10222 Vilnius, Lithuania
References
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  • 3. Y.-J. Lee, H.-C. Kuo, T.-C. Lu, S.-C. Wang, K.W. Ng, K.M. Lau, Z.-P. Yang, A.S.-P. Chang, S.-Y. Lin, J. Light. Technol. 26, 1455 (2008)
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  • 5. S. Pralgauskaite, V. Palenskis, J. Matukas, J. Petrulis, G. Kurilcik, Fluct. Noise Lett. 7, L367 (2007)
  • 6. V. Palenskis, J. Matukas, S. Pralgauskaitė, B. Šaulys, Fluct. Noise Lett. 9, 179 (2010)
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv119n247kz
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