US 12,425,034 B2
Diamond-based atomic clock
Haitham El-Ella, Malmö (SE)
Assigned to AdamanT Quanta AB, Lund (SE)
Appl. No. 18/867,889
Filed by AdamanT Quanta AB, Lund (SE)
PCT Filed May 23, 2023, PCT No. PCT/EP2023/063792
§ 371(c)(1), (2) Date Nov. 21, 2024,
PCT Pub. No. WO2023/227604, PCT Pub. Date Nov. 30, 2023.
Claims priority of application No. 22174961 (EP), filed on May 23, 2022.
Prior Publication US 2025/0260409 A1, Aug. 14, 2025
Int. Cl. H03L 7/26 (2006.01)
CPC H03L 7/26 (2013.01) 19 Claims
OG exemplary drawing
 
1. An atomic clock device comprising:
a diamond-based structure with nitrogen-vacancy defects and nitrogen-vacancy clusters;
at least one light emitting diode configured to illuminate the diamond-based structure;
a microwave pump generator configured to generate a microwave pump signal;
a microwave probe generator configured to generate a pulsed microwave probe signal;
a radiofrequency pump generator configured to generate a radiofrequency pump signal;
a radiofrequency probe generator configured to generate a pulsed radiofrequency probe signal;
one or more transmission lines or an antenna structure to feed the microwave pump signal, the pulsed microwave probe signal, the radiofrequency pump signal and the pulsed radiofrequency probe signal to the diamond-based structure; and
a detector configured to detect a response from the diamond-based structure in response to the microwave pump signal, the pulsed microwave probe signal, the radiofrequency pump signal and the pulsed radiofrequency probe signal, wherein a frequency spectrum of said response comprises a sharp spectral feature; and
wherein the atomic clock device is configured to generate an output clock signal, based on the sharp spectral feature.