Choi, WK Kim, DG Choi, YW Lee, S Woo, DH Kim, SH 2024-01-21T05:07:19Z 2024-01-21T05:07:19Z 2021-09-01 2005-05 0021-4922 https://pubs.kist.re.kr/handle/201004/136531 A novel fully depleted optical thyristor (DOT) using quarter wavelength reflector stacks (QWRS) is proposed. QWRS are employed as bottom mirrors to enhance the emission efficiency as well as optical sensitivity. To analyze their switching characteristics, s-shapes nonlinear current-voltage curves were simulated and the reverse full-depletion voltages (V(neg)S) of DOTs were obtained as a function of semiconductor parameters using a finite difference method associated with a current-oriented method. The fabricated DOTs show sufficient nonlinear s-shaped current-voltage (I-V) characteristics, and switching voltage changes with and without bottom mirrors are 1.82 V and 1.52 V, respectively. Compared to a conventional DOT, this device with the bottom mirror shows about 20% and 20-50% enhancement in switching voltage changes and spontaneous emission efficiency, respectively. English JAPAN SOC APPLIED PHYSICS OPTOELECTRONIC SWITCH INTERCONNECTS DEVICES POWER AlGaAs/GaAs NpnP depleted optical thyristor using bottom mirror layers Article 10.1143/JJAP.44.2913 1 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, v.44, no.5A, pp.2913 - 2920 JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS 44 5A 2913 2920 scie scopus 000231874900005 2-s2.0-22544433147 Physics, Applied Physics Article OPTOELECTRONIC SWITCH INTERCONNECTS DEVICES POWER depleted optical thyristor quarter wavelength reflector stacks full-depletion voltage finite difference method optical switching optical communication systems