Optical Measurements
Application Examples
Optical Measurements
Application Examples
Single Photon Generation with Controlled Polarization from InGaN Quantum Dots
The research group led by Robert Taylor( University of Oxford, UK) has successfully generated single photons with polarized light emission and predefined polarization axis at temperatures spanning from around 5 K to above 200 K using InGaN quantum dots. By using attocube cryogenic nanopositioners inside the optical cryostat attoDRY800, temperature sweeps between 5 K and 300 K were easily possible.
T. Wang et al., Nanoscale 9, 9421( 2017) T. Wang et al., Nanophotonics 6, 1175( 2017) T. Wang et al., Phys. Status Solidi B 254, 1600724( 2017)
Raman Measurements on 2D Materials at 2 K
Based on the reliability of attocube nanopositioners the groups of Nathaniel Stern and Vinayak Dravid at Northwestern University, USA used a film of monolayer MoS 2 to present a new in-situ electrical biasing technique with transmission electron microscopy. They found that net vacancy flux towards the grain boundaries occurs with an applied electric field.
A. A. Murthy et al., ACS Nano 14, 1569( 2020)
A Quantum Network Node and Register Based on Silicon Vacancies in Diamond
The realization of a quantum network node is a fundamental requirement for a future quantum network or even quantum internet. At Havard University( USA) the groups of Marko Loncar and Mikhail Lukin presented an elementary quantum network node based on a silicon vacancy color center inside a diamond nanocavity. The mm sized travel range with nm resolution of ANP positioners as well as the cryogenic objective are fundamental building blocks in their home-built mK microscope.
C. T. Nguyen et al, Phys. Rev. B 100, 165428( 2019)