Absorption and birefringence study for reduced optical losses in diamond with high NV concentration

Abstract

The use of diamond color centers such as the nitrogen-vacancy (NV) center is increasingly enabling quantum sensing and computing applications. Novel concepts like cavity coupling and readout, laser threshold magnetometry and multi-pass geometries allow significantly improved sensitivity and performance via increased signals and strong light fields. Enabling material properties for these techniques and their further improvements are low optical material losses via optical absorption of signal light and low birefringence. Here we study systematically the behavior of absorption around 700 nm and birefringence with increasing nitrogen- and NV-doping, as well as their behavior during NV creation via diamond growth, electron beam irradiation and annealing treatments. Absorption correlates with increased nitrogen-doping yet substitutional nitrogen does not seem to be the direct absorber. Birefringence reduces with increasing nitrogen doping. We identify multiple crystal defect concentrations via absorption spectroscopy and their changes during the material processing steps and thus identify potential causes of absorption and birefringence as well as strategies to fabricate CVD diamonds with high NV density yet low absorption and low birefringence.

arXiv commentAccepted by Philosophical Transactions A (DOI: 10.1098/rsta.2022.0314)

References in corpus (21)

• Nanometer scale quantum thermometry in a living cell
• Sensing electric fields using single diamond spins
• Sensitivity Optimization for NV-Diamond Magnetometry
• High precision nano scale temperature sensing using single defects in diamond
• Temperature dependence of the nitrogen-vacancy magnetic resonance in diamond
• High nitrogen-vacancy density diamonds for magnetometry applications
• Scanning magnetic field microscope with a diamond single-spin sensor
• Electronic properties and metrology of the diamond NV- center under pressure
• Coupling of Nitrogen-Vacancy Centers to Photonic Crystal Cavities in Monocrystalline Diamond
• Dynamic strain-mediated coupling of a single diamond spin to a mechanical resonator
• Resolved sidebands in a strain-coupled hybrid spin-oscillator system
• Detection of a single fundamental charge with nanoscale resolution in ambient conditions using the NV${}^{-}$ center in diamond
• Stimulated emission from NV centres in diamond
• Scanning Quantum Decoherence Microscopy
• Resonant Excitation and Purcell Enhancement of Coherent Nitrogen-Vacancy Centers Coupled to a Fabry-Pérot Micro-Cavity
• NV${}^{-}$ Diamond Laser
• Laser threshold magnetometry
• Charge transfer effects, thermo- and photochromism in single crystal CVD synthetic diamond
• Infrared laser magnetometry with a NV doped diamond intracavity etalon
• Rapid determination of single substitutional nitrogen N${}_s^0$ concentration in diamond from UV-Vis spectroscopy
• Dual-probe decoherence microscopy: Probing pockets of coherence in a decohering environment

Cited by in corpus (1)

• Stabilizing an optical cavity containing a bulk diamond crystal at millikelvin temperatures in a cryogen-free dilution refrigerator