Yong Tak Lee
Gwangju Institute of Science and Technology
265 Papers
1.7K Citations
Yong Tak Lee is an academic researcher from Gwangju Institute of Science and Technology. The author has contributed to research in topics: Quantum well & Vertical-cavity surface-emitting laser. The author has an hindex of 26, co-authored 264 publications.
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Papers
Dependence of band gap energy shift of In0.2Ga0.8As/GaAs multiple quantum well structures by impurity-free vacancy disordering on stoichiometry of SiOx and SiNx capping layers
TL;DR: In this paper, the effects of the stoichiometry of SiOx and SiNx capping layers on the band gap energy shift induced by impurity-free vacancy disordering of the In0.2Ga0.8As/GaAs multiple quantum well structures were investigated.
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Self-Induced Modulational-Instability-Assisted Frequency Comb Generation Using a Passive Fiber Ring Cavity Having Varying Normal Dispersion
TL;DR: In this article, a phase-locked optical frequency comb with a repetition rate of ~43 GHz was generated using an all-passive fiber cavity operating in varying normal dispersion regime and pumped by a multimode laser diode.
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Improved light extraction efficiency of GaN-based vertical LEDs using hierarchical micro/subwavelength structures
TL;DR: In this paper, the hierarchical micro-and subwavelength structures on the surface of GaN-based green vertical light-emitting diodes (VLEDs) were demonstrated to enhance the light extraction efficiency.
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RCEPD With Enhanced Light Absorption by Crown-Shaped Quantum Well
TL;DR: In this article, a high-performance resonant cavity enhanced photodetector (RCEPD) is developed by introducing an InGaAs/GaAs crown-shaped quantum well (CSQW) structure.
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