Architecture for Surface-Emitting Lasers with On-Demand Lasing Wavelength by Semiconductor Nanowires
Mohammad Fazel Vafadar
PhD Candidate, ECE, ÎÛÎÛ²ÝÝ®ÊÓƵ
FRI. October 25, 12:00-1:00 pm
Rutherford Physics Building (3600 University), Board Room (Ground Floor)
FREE • Coffee and pizza provided • Space is limited: Please register below.
Despite the importance and exciting progress of surface-emitting (SE) semiconductor lasers, we have limited choices of lasing wavelength even today. From an application viewpoint, it is desirable to have an architecture that can allow SE lasing in a wide spectral range, based on the need of applications. Herein, we demonstrate a path for SE lasers with lasing wavelength on demand by exploiting III-nitride nanowire optical cavities formed by low-temperature selective area epitaxy (SAE), combined with fine-tuning of substrate patterns and photonic bands.
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