Browsing by Author "Oliver, Rachel"

Now showing items 1-2 of 2

    • 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 ...