2019 Materials science lecture series: advanced materials - 16 January 2019
Jan 16, 2019 - 15.00 uur
Agoralaan Gebouw D
Lokaal Room C105
Mevrouw Aslihan BABAYIGIT
MRS/E-MRS joint chapter of Hasselt University: 2019 materials science lecture series: advanced materials.
Speaker: Dr. Carlo Bradac - Research fellow at the University of technology - sydney (Australia)
Nanoscale sensing with colour centres in diamond and 2D hexagonal boron nitride
Wednesday 16 January 2019, 15:00
Room C105, Building D, Hasselt University, Campus Diepenbeek.
Color centres in solid-state systems have become one of the most prominent candidates for high-resolution sensing at the nanoscale. In this talk, I will present some of the methods we designed to harness and modify the optical properties of colour centres in diamond as well as in 2D hexagonal boron nitride (hBN) to push the resolution and sensitivity limits of our measurements.
For instance, we use low-energy (Anti-Stokes) excitation of diamond colorcentres to perform nanoscale thermometry with sensitivities beyond those achievable by any alternative, homologous method. We propose multi-laser schemes exploiting the photophysics of certain quantum emitters in hBN for super resolution imaging and nanoscopy. We use a scheme called field-assisted photo-doping to tune both, dynamically and permanently, the emission energy of hBN colour centres.