Browsing by Author "Oliver, Rachel"
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Low threshold, room-temperature microdisk lasers in the blue spectral range
Aharonovich, Igor; Woolf, Alexander J; Russell, Kasey Joe; Zhu, Tongtong; Niu, Nan; Kappers, Menno J.; Oliver, Rachel Caledonia Isabella; Hu, Evelyn (American Institute of Physics (AIP), 2013)InGaN-based active layers within microcavity resonators offer the potential of low threshold lasers in the blue spectral range. Here, we demonstrate optically pumped, room temperature lasing in high quality factor GaN ... -
Ultra-low threshold gallium nitride photonic crystal nanobeam laser
Niu, Nan; Woolf, Alexander J; Wang, Danqing; Zhu, Tongtong; Quan, Qimin; Oliver, Rachel; Hu, Evelyn (AIP Publishing, 2015)We report exceptionally low thresholds (9.1 μJ/cm2) for room temperature lasing at ∼450 nm in optically pumped Gallium Nitride (GaN) nanobeam cavity structures. The nanobeam cavity geometry provides high theoretical Q ...