Dual-media laser system: Nitrogen vacancy diamond and red semiconductor laser
Diamond is a potential host material for laser applications due to its exceptional thermal properties, ultrawide bandgap, and color centers, which promise gain across the visible spectrum. More recently, coherent laser methods offer improved sensitivity for magnetometry. However, diamond fabrication is difficult in comparison to other crystalline matrices, and many optical loss channels are not yet understood. Here, we demonstrate a continuous-wave laser threshold as a function of the pump intensity on nitrogen-vacancy (NV) color centers. To achieve this, we constructed a laser cavity with both an NV diamond medium and an intracavity antireflection-coated diode laser. This dual-medium approach compensates intrinsic losses of the cavity by providing a fixed additional gain below threshold of the diode laser. We observe a continuous-wave laser threshold of the laser system and linewidth narrowing with increasing green pump power on the NV centers. Our results are a major development toward coherent approaches to magnetometry.
Authors
- Marco Capelli
- Tingpeng Luo (ORCID: https://orcid.org/0000-0001-5486-4064)
- R. Quay (ORCID: https://orcid.org/0000-0002-3003-0134)
- Jan Jeske (ORCID: https://orcid.org/0000-0003-3532-506X)
- Xavier Vidal (ORCID: https://orcid.org/0000-0001-8026-2016)
- Brant C. Gibson (ORCID: https://orcid.org/0000-0002-7109-2796)
- Joachim Sacher (ORCID: https://orcid.org/0000-0002-6763-2198)
- Guillermo Nava Antonio (ORCID: https://orcid.org/0000-0003-2813-2841)
- Takeshi Ohshima (ORCID: https://orcid.org/0000-0002-7850-3164)
- Qiang Sun (ORCID: https://orcid.org/0000-0002-4183-1260)
- Felix A. Hahl (ORCID: https://orcid.org/0000-0001-5861-0547)
- Lukas Lindner (ORCID: https://orcid.org/0000-0002-5814-220X)
- Marcel Rattunde (ORCID: https://orcid.org/0009-0006-4039-1570)
- Andrew D. Greentree (ORCID: https://orcid.org/0000-0002-3505-9163)
Institutions
- Tohoku University (JP)
- University of Cambridge (GB)
- Fraunhofer Institute for Applied Solid State Physics (DE)
- Euskadiko Parke Teknologikoa (ES)
- National Institutes for Quantum Science and Technology (JP)
- RMIT University (AU)
Publication Details
- Journal
- Science Advances
- Published
- 2024-09-27
- DOI
- https://doi.org/10.1126/sciadv.adj3933
- Citations
- 8
- Primary Topic
- Diamond and Carbon-based Materials Research
- Type
- article
- Field-Weighted Citation Impact
- 0.94