Optical filtration system for diamond material with nitrogen vacancy centers

• US 10,317,279 B2
• Filed: 03/09/2017
• Issued: 06/11/2019
• Est. Priority Date: 05/31/2016
• Status: Active Grant

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Bruce, Gregory Scott, Hahn, Joseph W., Luzod, Nicholas Mauriello
• Primary Examiner(s): Gunberg, Edwin C
• Application Number:
  US15/454,162
• Publication Number:
  US 20170343412A1
• Time in Patent Office: 824 Days
• CPC Class Codes: G01J 1/0422 using light concentrators, collectors or condensers
• CPC Class Codes: G01J 1/0425 using optical fibers
• CPC Class Codes: G01J 1/0488 with spectral filtering
• CPC Class Codes: G01J 1/58 using luminescence generated by light
• CPC Class Codes: G01R 33/032 using magneto-optic devices, e.g. Faraday or Cotton-Mouton effect
• CPC Class Codes: G02F 1/35 Non-linear optics
• CPC Class Codes: G02F 2/02 Frequency-changing of light, e.g. by quantum counters

Abstract

A system provides light received from NV diamond material to an optical collector. The provision of light received from NV diamond material to an optical collector impacts the efficiency by which light is directed to the optical collector. The system may be employed to efficiently direct light from the NV diamond material to the optical collector.

Claims

1. A system comprising:

an optical excitation source configured to generate light corresponding to a first wavelength;

a vacancy center material comprising a plurality of vacancy centers, the vacancy center material configured to;

receive radio frequency (RF) excitation;

receive optical excitation based, at least in part, on the generation of the light corresponding to the first wavelength; and

generate light corresponding to a second wavelength responsive to the RF excitation and the optical excitation received;

a plurality of optical collectors comprising respective receiving ends configured to receive at least a first portion of the light corresponding to the second wavelength, wherein the vacancy center material is disposed in a gap between the receiving ends; and

an optical filter disposed adjacent to the gap between the receiving ends of the plurality of optical collectors configured to provide at least a second portion of the light corresponding to the second wavelength to the plurality of optical collectors.

2. The system of claim 1, wherein the optical filter is further configured to transmit the light corresponding to the first wavelength.

3. The system of claim 1, wherein the light corresponding to the first wavelength comprises green and the light corresponding to the second wavelength comprises red.

4. The system of claim 1, wherein the optical filter comprises an optical coating, and wherein the optical coating comprises one or more layers configured to at least one of transmit or reflect light.

5. The system of claim 1, wherein the optical filter is disposed at least one of above, beneath, behind, or in front of the plurality of optical collectors.

6. The system of claim 1, wherein the optical filter is configured to enclose the vacancy center material.

7. The system of claim 1, wherein the optical filter is disposed at least one of above, beneath, behind, or in front of the vacancy center material.

8. The system of claim 1, wherein a predetermined dimension corresponding to the optical filter is configured to extend beyond a predetermined dimension corresponding to the gap.

9. The system of claim 1, further comprising a RF excitation source configured to provide the RF excitation to the vacancy center material.

10. The system of claim 1, wherein the optical filter comprises a dichroic filter.

11. A system comprising:

an optical excitation source configured to generate light corresponding to a first wavelength;

a vacancy material comprising a plurality of vacancy centers, the vacancy material configured to;

receive radio frequency (RF) excitation;

receive optical excitation based, at least in part, on the generation of the light corresponding to the first wavelength; and

generate light corresponding to a second wavelength responsive to the RF excitation and the optical excitation received;

a plurality of optical collectors comprising respective receiving ends configured to receive at least a first portion of the light corresponding to the second wavelength, wherein the vacancy center material is disposed in a gap between the receiving ends; and

a plurality of optical filters disposed adjacent to the gap between the receiving ends of the plurality of optical collectors configured to provide at least a second portion of the light corresponding to the second wavelength to the plurality of optical collectors.

12. The system of claim 11, wherein at least one of the plurality of optical filters are further configured to transmit the light corresponding to the first wavelength.

13. The system of claim 11, wherein the light corresponding to the first wavelength comprises green and the light corresponding to the second wavelength comprises red.

14. The system of claim 11, wherein each of the plurality of optical filters are disposed at least one of above, beneath, behind, or in front of the plurality of optical collectors.

15. The system of claim 11, wherein the plurality of optical filters are disposed proximate to the plurality of optical collectors.

16. The system of claim 11, wherein each of the plurality of optical filters are disposed at least one of above, beneath, behind, or in front of the vacancy material.

17. The system of claim 11, further comprising a RF excitation source configured to provide the RF excitation to the vacancy material.

18. The system of claim 11, wherein the plurality of optical filters comprises an optical coating configured to facilitate the provision of the light corresponding to the second wavelength to the optical collectors.

19. A system comprising:

an optical excitation source configured to generate light corresponding to a first wavelength;

a vacancy material comprising a plurality of vacancy centers, the vacancy material configured to;

receive radio frequency (RF) excitation;

receive optical excitation based, at least in part, on the generation of the light corresponding to the first wavelength; and

generate light corresponding to a second wavelength responsive to the RF excitation and the optical excitation received;

an optical collector comprising a receiving end configured to receive at least a first portion of the light corresponding to the second wavelength, wherein the vacancy center material is disposed in a gap adjacent to the receiving end; and

an optical filter disposed adjacent to the gap configured to provide at least a second portion of the light corresponding to the second wavelength to the optical collector.

20. The system of claim 19, wherein the vacancy material is disposed proximate to the optical collector.

21. The system of claim 19, wherein the optical filter is disposed at least one of above, beneath, behind, or in front of the vacancy material.

22. The system of claim 19, wherein the optical filter is disposed within a predetermined distance to the optical collector.

23. The system of claim 19, wherein the optical filter is disposed at least one of above, beneath, behind, or in front of the optical collector.

24. The system of claim 19, wherein the optical filter comprises an optical coating, and wherein the optical coating comprises at least one of a soft coating or a hard coating.

25. An apparatus, the apparatus configured to:

receive light corresponding to a first wavelength;

receive, via a vacancy material comprising a plurality of vacancy centers, at least a second portion of light corresponding to a second wavelength; and

reflect the at least second portion of light corresponding to the second wavelength to a plurality of optical collectors comprising respective receiving ends configured to receive at least a first portion of the light corresponding to the second wavelength, wherein the vacancy center material is disposed in a gap between the receiving ends when the apparatus is disposed adjacent to the gap between the receiving ends of the plurality of optical collectors.

26. The apparatus of claim 25, wherein the optical filter comprises an optical coating configured to facilitate the transmission of the light corresponding to the first wavelength.

27. The apparatus of claim 25, wherein the optical filter comprises an optical coating configured to facilitate the reflection of the light corresponding to the second wavelength.

28. The apparatus of claim 25, wherein the optical filter is further configured to transmit light corresponding to the first wavelength.