Seth A. Fortuna received the B.Sc. in Electrical Engineering from Pennsylvania State University in 2003 and the M.Sc. in Electrical and Computer Engineering from University of Illinois at Urbana-Champaign in 2009. He has previously worked in industry at Intel Corporation and Philips Lumileds working primarily on reliability and failure analysis of semiconductor devices. Since 2012, he has been at University of California, Berkeley where he is currently pursuing his Ph.D. degree in Electrical Engineering under Prof. Ming C. Wu. His current research interests include nano-photonics for use in on-chip communication.
Directly Modulated High-Speed nanoLED Utilizing Optical Antenna Enhanced Light Emission [BPN703]
Coupling an optical antenna to a nanoscale light emitter has been shown to increase the spontaneous emission rate by compensating for the large size mismatch between the emitter and emission wavelength. This spontaneous emission rate enhancement has been predicted to be as large as several orders of magnitude, easily surpassing the stimulated emission rate and enabling high direct modulation bandwidth. The aim of this project is to utilize this concept to demonstrate a directly modulated nanoscale semiconductor light emitting diode (nanoLED) with direct modulation speeds >50 GHz, exceeding the bandwidth of semiconductor lasers. Unlike lasers, such nanoLEDs are also inherently low-power and do not require minimum threshold current density for operation and are therefore a promising light generating source for use in on-chip communication.