invited talk Invited Talk at Photonics West 2020 Patrick gave an invited talk at Photonics West 2020 in San Francisco, in the session Novel Nano Structure. This talk convered recent work on ultra-low threshold nanowire lasers and experimental end-cavity reflectivity measurements in nanoscale systems.
Antonio Hurtado New Paper: Characterisation, Selection and Micro-Assembly of Nanowire Laser Systems Our collaborative work on the selection, transfer and testing of semiconductor nanowire lasers has now been published in Nano Letters. In this work, growth colleagues at ANU prepared nanowire lasers which were characterised at Manchester. This characterisation was used to select bins of nanowires, which were transferred using a cutting
Jenny Clark Seminar at the University of Sheffield 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.
Antonio Hurtado New arXiv paper - Characterisation, Selection and Micro-Assembly of Nanowire Laser Systems Our new paper produce in collaboration with Michael Strain and Antonio Hurtado (University of Strathclyde) and the Jagadish group (Australian National University) is now available on the arXiv. 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
Import 2022-12-08 21:42 Photonics Online Meetup The OMS group will host the University of Manchester hub for the Photonics Online Meetup. This is the first free, online-only photonics conference, to be held from 7pm-midnight on Monday 13th January 2020. Any staff or students who wish to attend should contact Patrick Parkinson.
Arturo Alanis Conference Talk: Arturo at MRS Fall Group PhD student Arturo has given a talk at MRS Fall 2019 in Boston. He spoke on “Nanolaser Optimization through Statistical Optoelectronic Analysis“.
Jack Chun-Ren Ke Viva in Manchester Patrick was the internal examiner for (Jack) Chun-Ren Ke, a student in the group of Prof. Wendy Flavell who has worked on surface science of hybrid-perovskite optoelectronic materials. The external examiner was Prof. Sven Schroeder of the University of Leeds.
Ahsan Nazir Viva in Manchester Patrick was the internal PhD examiner for Henry Maguire in the Nazir group at the University of Manchester. Henry submitted his thesis on “Optically driven nanostructures with strong vibronic coupling“, and Dr Alex Chin was the external examiner.
Akshay Rao Viva in Cambridge Patrick was the external examiner for Limeng Ni, a PhD student in the group of Akshay Rao at the University of Cambridge. Limeng was examined on her thesis exploring energy transfer in 2D perovskite materials, nanoparticles, and lanthenide-containing materials with a focus on singlet fission and triplet-triplet annihilation.
Nanowires University of Oxford Condensed Matter Physics Seminar Patrick gave the Oxford Condensed Matter Physics seminar on A needle in a needlestack – exploiting functional inhomogeneity for optimized nano-optoelectronics. In this talk, he presented on recent advances in using high-throughput spectroscopy to study nanowires for optoelectronic applications.
Louise Natrajan Welcome to Matthew Thornton A welcome to Matthew Thornton, a new PhD student on a BBSRC-DTP project led by Dr. Louise Natrajan (Chemistry) and co-supervised by Dr Sam Hay (MIB) and Patrick. Matthew’s project on “Photon Upconversion Probes with Lanthanide Containing Biomolecules” includes rotations working in Chemistry, the Photon Science Institute and the
Group Photo Hard work in the lab After a hard day of installing new laser shields, the group were looking forward to… another day of lab shield installation
Nanowires Collaborator visit to Sheffield Ruqaiya and Patrick visited Prof. David Mowbray at the University of Sheffield to discuss nanowire spectroscopy research.
Import 2022-12-08 21:42 New Paper - Effect of size on the luminescent efficiency of perovskite nanocrystals A new paper led by groups at Cambridge has been published in ACS Applied Energy Materials. In this work, a combination of nanoscale cathodoluminescence and time- and energy-resolved photoluminescence is used to reveal energy dynamics in colloidal perovskite nanocrystals. These techniques relate trap density and Auger effects to stoichiometry and
Tom Flavell Welcome to Tom Flavell A welcome to Tom Flavell, a new PhD student in Physics who is primarily supervised by Prof. Wendy Flavell (no relation) and co-supervised by Patrick and Dr Andrew Thomas. Tom will be working on perovskite quantum dots, and will make use of the low-light spectroscopy facilities based in the OMS
Arturo Alanis New Paper - Threshold reduction and yield improvement of semiconductor nanowire lasers via processing-related end-facet optimization Arturo has had a paper accepted for publication in Nanoscale Advances, describing the impact of the transfer process on the morphology and threshold of semiconductor nanowire lasers. While many studies have sought to improve the threshold for lasing in semiconductor nanowire lasers, the role of process has not been significantly
Import 2022-12-08 21:42 Workshop on Perovskites and Emerging Optoelectronic Materials Thanks to all of the speakers and attendees who came to the Workshop on Perovskites and Emerging Optoelectronic Materials , hosted in the Photon Science Institute. We heard from 8 speakers covering physics, materials and electronic engineering for photovoltaic and light-emitting applications. The workshop was concluded with a seminar presentation from
Harry Rowland Welcome to Harry and Lydia! The group welcomes Harry and Lydia, two Manchester Physics MPhys students to the group. They will work together on a project to develop a high-resolution and low-cost interferometric distance standard using atomic transitions in lanthenide glasses.
Nawal Al-Amairi Welcome to Ruqaiya and Nawal! The group welcomes Ruqaiya and Nawal as two new PhD students working in the group. Ruqaiya will be working on nanolasers for on-chip photonics using both nanowires and nanoshapes developed by collaborators in UCL, ANU and China. Nawal will be working on ultrafast photodetectors based on 2D materials with collaborators
2D Materials New Paper - Visible and infrared photocurrent enhancement in a graphene-silicon Schottky photodetector through surface-states and electric field engin Nawapong Unsuree has had a paper accepted for publication in 2D Materials. coming from a collaboration between the Echtermeyer group (Manchester) and the Parkinson group. The research was conducted in the National Graphene Institute and the Photon Science Institute. This new research reports the application of infrared scanning photocurrent microscopy
Nanowires Talk at UK Semiconductors 2019 Group PhD student Stefan Skalsky gave a talk at the UK Semiconductors meeting in Sheffield. His talk, on “Nanosecond lasing and mm-scale optical coherence length in GaAsP/GaAs Quantum-Well Nanowire Lasers” descibed his recent work using interferometric time-resolved spectroscopy to reveal the end-facet reflectivity in nanowire lasers.
Antonio Hurtado PSI Seminar - Antonio Hurtado The group welcomed Dr Antonio Hurtado of the University of Strathclyde Institute of Photonics to give a seminar at the Photon Science Institute. He spoke on Neuromorphic Photonics – the use of lasers as non-linear elements in a neuromorphic system.
Oxford Tim Crothers - PhD viva in Oxford Patrick acted as external examiner for Tim Crothers, a student with Prof. Laura Herz in Physics at Oxford University. Tim defended his thesis on Charge-carrier transport and recombination dynamics in metal halide perovskites.
Nanowires Tutorial Session at Jaszowiec 2019 Patrick gave a tutorial session at the Jaszowiec 2019 meeting – the International School and Conference on the Physics of Semiconductors – held in Szczyrk in Poland. The session covered the use of ultrafast spectroscopy for developing nanotechnology for optoelectronics, and specifically semiconductor nanowires. A copy of the presentation is available for
