1. Compact design of a gallium phosphide nanobeam cavity for coupling to diamond germanium-vacancy centers
- Author
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Ivan Cojocaru, Alexey V. Akimov, and Abdulrahman Alajlan
- Subjects
Materials science ,Physics::Optics ,chemistry.chemical_element ,Germanium ,02 engineering and technology ,engineering.material ,01 natural sciences ,010309 optics ,chemistry.chemical_compound ,Vacancy defect ,0103 physical sciences ,Gallium phosphide ,Coupling ,Quantum optics ,business.industry ,Cavity quantum electrodynamics ,Diamond ,021001 nanoscience & nanotechnology ,Electronic, Optical and Magnetic Materials ,chemistry ,engineering ,Physics::Accelerator Physics ,Optoelectronics ,0210 nano-technology ,business ,Refractive index - Abstract
A design for an ultrahigh Q/V nanobeam cavity engineered to interact with Germanium-vacancy (GeV) centers is presented. The nanobeam cavity supports a mode with Q/V>108 with transmission over 70%. The proposed design is based on a new scalable approach developed to reduce the footprint of nanobeam cavities by more than 50% without losing the cavity Q/V value and transmission. Cavity quantum electrodynamics analysis reveals that strong coupling between the zero-phonon line transition of GeV centers and the cavity mode can be achieved for a range of nanobeam dimensions.
- Published
- 2019
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