Patrick gave a seminar at the University of Sheffield, where he was kindly hosted by Dr Jenny Clark of the Department of Physics and the Sheffield Laser Lab. He spoke about exploiting functional inhomogeneity for optimizing nano-optoelectronics, and learnt a lot about ultrafast spectroscopy for singlet fission.
In this work, we combine high-quality nanolaser growth (ANU) with high-throughput optical spectroscopy (Manchester) and high-speed pick-and-place technology (Strathclyde) to demonstrate scaled-up assembly of nanowire-based laser systems. We find that while the transfer process can affect the lasing properties of the nanowires, a class of wires exist where little or no difference in threshold is observed. Furthermore, the lasing wavelength is more robust under transfer than the laser threshold.
These findings and optimization procedure point the way towards the development of multiple element active nanowire laser photonic systems.
Reference: Characterisation, Selection and Micro-Assembly of Nanowire Laser Systems, Dimitars Jevtics et al., arXiv:2001.02032 [physics.app-ph]