Dielectric microwave resonator with large optical apertures for
spin-based quantum devices
- URL: http://arxiv.org/abs/2403.08458v1
- Date: Wed, 13 Mar 2024 12:18:37 GMT
- Title: Dielectric microwave resonator with large optical apertures for
spin-based quantum devices
- Authors: Tatsuki Hamamoto, Amit Bhunia, Rupak Kumar Bhattacharya, Hiroki
Takahashi, Yuimaru Kubo
- Abstract summary: Microwave resonator with internal quality factor of $2.30times104$ accommodated optical apertures with a diameter of $8, mathrmmm$.
We performed both continuous-wave (cw) and pulse electron spin resonance (ESR) spectroscopy on 2,2-diphenyl-1-picrylhydrazyl (DPPH) crystalline powder and P1 centers in a diamond crystal in a dilution refrigerator.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Towards a spin-based quantum microwave-optical photon transducer, we
demonstrate a low-loss dielectric microwave resonator with an internal quality
factor of $2.30\times10^4$ while accommodating optical apertures with a
diameter of $8\, \mathrm{mm}$. The two seemingly conflicting requirements, high
quality factor and large optical apertures, are satisfied thanks to the large
dielectric constant of rutile ($\mathrm{TiO_2}$). The quality factor is limited
by radiation loss, and we confirmed by numerical simulation that this
dielectric resonator can achieve a quality factor exceeding $10^6$ by extending
the height of the resonator enclosure. Using this resonator, we performed both
continuous-wave (cw) and pulse electron spin resonance (ESR) spectroscopy on
2,2-diphenyl-1-picrylhydrazyl (DPPH) crystalline powder and P1 centers in a
diamond crystal in a dilution refrigerator. The cw ESR spectroscopy
demonstrated high-cooperativity and strong spin-resonator coupling with the
DPPH and P1 centers respectively, while the pulse ESR spectroscopy successfully
measured longitudinal and transverse relaxation times.
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