SAMOP 2023 – scientific programme
Parts | Days | Selection | Search | Updates | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 42: Poster III
Q 42.14: Poster
Wednesday, March 8, 2023, 16:30–19:00, Empore Lichthof
On-chip single-photon subtraction by individual silicon vacancy centers in a laser-written diamond waveguide — Michael Koch1,2, •Vibhav Bharadwaj1,3, Michael Höese1, Johannes Lang1, John P. Hadden4, Roberta Ramponi3, Fedor Jelezko1,2, Shane M. Eaton3, and Alexander Kubanek1,2 — 1Institute for Quantum Optics, Ulm University, Ulm, Germany — 2IQst, Ulm University, D-89081 Ulm, Germany — 3Istituto di Fotonica e Nanotecnologie (IFN-CNR), Milan, Italy — 4School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, UK
Apart from its perfect to application properties of hardness, transparency and thermal conductivity, diamond has created an interest in the quantum technologies community due to naturally occurring imperfection in the form of color centers such as Nitrogen vacancy (NV) and Silicon Vacancy (SiV). They have emerged as candidates for quantum computing and field sensing applications. Recently, Laser writing has allowed 3-d formation of photonic and microfluidic devices in diamond [1] with the ability to integrate waveguide with Ion implanted single SiV centers. In this poster, we show single-emitter extinction measurements from SiV coupled to a waveguide demonstrating single-photon subtraction from a quasi-coherent field resulting in super-Poissonian light statistics[2]. Our architecture enables light field engineering in an integrated design on the single quantum level.
[1] Bharadwaj V et al. Journal of Physics: Photonics (2019): 022001
[2] M. K. Koch et al., ACS Photonics 9, 3366-3373 (2022)