LIGHT COLLECTION FROM DNV SENSORS
Methods and configurations are disclosed for an efficient collection of fluorescence emitted by the nitrogen vacancies of a diamond of a DNV sensor. Some implementations may include a diamond having a nitrogen vacancy and a reflector positioned about the diamond to reflect a portion of light emitted from the diamond. In some implementations the reflector may be parabolic or ellipsoidal. In some implementations, DNV sensor may have a reflector and a concentrator. Other implementations may include a diamond with a nitrogen vacancy and a reflector positioned about the diamond to reflect a portion of light emitted from the diamond using a dielectric mirror film applied to the reflector. Still other implementations may have a diamond with a nitrogen vacancy and a dielectric mirror film coated on the diamond.
1 . A diamond nitrogen-vacancy (DNV) sensor comprising:
a diamond having a nitrogen vacancy; and
a reflector positioned about the diamond to reflect a portion of light emitted from the diamond.
2 . The DNV sensor of claim 1 further comprising:
a photo detector to measure the portion of light emitted from the diamond.
3 . The DNV sensor of claim 2 , wherein the photo detector is sealed to a portion of the reflector.
4 . The DNV sensor of claim 2 , wherein the reflector is parabolic.
5 . The DNV sensor of claim 2 , wherein the reflector is ellipsoidal.
6 . The DNV sensor of claim 5 , wherein the diamond is positioned at a first focus of the reflector and the photo detector is positioned at a second focus of the reflector.
7 . The DNV sensor of claim 2 further comprising:
an optical filter coupled to the photo detector.
8 . The DNV sensor of claim 7 , wherein the optical filter is a red filter.
9 . The DNV sensor of claim 1 , wherein the reflector comprises an opening for an excitation laser beam to excite the diamond.
10 . A diamond nitrogen-vacancy (DNV) sensor comprising:
a diamond having a nitrogen vacancy; and
a parabolic reflector positioned about the diamond to reflect a portion of light emitted from the diamond.
11 . A diamond nitrogen-vacancy (DNV) sensor comprising:
a diamond having a nitrogen vacancy; and
a ellipsoidal reflector positioned about the diamond to reflect a portion of light emitted from the diamond.
12 . A diamond nitrogen-vacancy (DNV) sensor comprising:
a diamond having a nitrogen vacancy;
a reflector positioned about the diamond to reflect a portion of light emitted from the diamond; and
a concentrator coupled to the reflector and configured to concentrate the reflected portion of light.
13 . The DNV sensor of claim 12 further comprising:
a photo detector coupled to the concentrator and configured to measure the concentrated portion of light.
14 . The DNV sensor of claim 13 , wherein the photo detector is sealed to a portion of the concentrator.
15 . The DNV sensor of claim 13 , wherein the reflector is parabolic.
16 . The DNV sensor of claim 13 , wherein the reflector is ellipsoidal.
17 . The DNV sensor of claim 13 , wherein the diamond is positioned at a first focus of the reflector and the photo detector is positioned at a second focus of the concentrator.
18 . The DNV sensor of claim 13 further comprising:
an optical filter coupled to the photo detector.
19 . The DNV sensor of claim 18 , wherein the optical filter is a red filter.
20 . The DNV sensor of claim 12 , wherein the concentrator comprises an opening for an excitation laser beam to excite the diamond.
21 . The DNV sensor of claim 20 , wherein the opening is proximate to the photo detector.
22 . A diamond nitrogen-vacancy (DNV) sensor comprising:
a diamond having a nitrogen vacancy; and
a reflector positioned about the diamond to reflect a portion of light emitted from the diamond, the reflector comprising a dielectric mirror film.
23 . The DNV sensor of claim 22 , wherein the dielectric mirror film reflects only red light.
24 . The DNV sensor of claim 22 , wherein the dielectric mirror film permits transmission of green light through the dielectric mirror film.
25 . The DNV sensor of claim 22 further comprising:
a photo detector coupled to the reflector and configured to measure the reflected portion of light.
26 . The DNV sensor of claim 25 , wherein the photo detector is sealed to a portion of the reflector.
27 . The DNV sensor of claim 25 further comprising:
an optical filter coupled to the photo detector.
28 . The DNV sensor of claim 27 , wherein the optical filter is a red filter.
29 . The DNV sensor of claim 22 , wherein the reflector is parabolic.
30 . The DNV sensor of claim 22 , wherein the reflector is ellipsoidal.
31 . The DNV sensor of claim 22 , wherein the reflector comprises a substrate, the dielectric mirror film being applied to the substrate.
32 . The DNV sensor of claim 31 , wherein the substrate possesses a high clarity at a frequency of interest for the DNV sensor.
33 . The DNV sensor of claim 31 , wherein the substrate is one of a plastic, glass, diamond, or quartz.
34 . A diamond nitrogen-vacancy (DNV) sensor comprising:
a diamond having a nitrogen vacancy; and
a dielectric mirror film coated on the diamond.
35 . The DNV sensor of claim 34 , wherein the dielectric mirror film reflects only red light.
36 . The DNV sensor of claim 34 , wherein the dielectric mirror film permits transmission of green light through the dielectric mirror film.
37 . The DNV sensor of claim 34 further comprising:
a photo detector coupled to the diamond and configured to measure a reflected portion of light.
38 . The DNV sensor of claim 37 , wherein the photo detector is sealed to a portion of the diamond.
39 . The DNV sensor of claim 37 further comprising:
an optical filter coupled to the photo detector.
40 . The DNV sensor of claim 39 , wherein the optical filter is a red filter.
41 . The DNV sensor of claim 34 further comprising:
a fiber conveying green light to the diamond.
42 . The DNV sensor of claim 34 further comprising:
a microwave coil coiled about a portion of the diamond.
43 . The DNV sensor of claim 34 , wherein the diamond is parabolic in shape.
44 . The DNV sensor of claim 34 , wherein the diamond is ellipsoidal in shape.
45 . A method for constructing a DNV sensor, the method comprising:
providing a diamond having a nitrogen vacancy; and
applying a dielectric mirror film coat to a portion of the diamond.
46 . The method of claim 45 further comprising:
machining a portion of the diamond into a parabolic shape.
47 . The method of claim 45 further comprising:
machining a portion of the diamond into an ellipsoidal shape.
48 . The method of claim 45 further comprising:
positioning a photo detector relative to the diamond to receive light emitted from the diamond.
49 . The method of claim 45 , wherein a layer of the diamond does not have nitrogen vacancies.
50 . A method for constructing a DNV sensor, the method comprising:
providing a diamond having a nitrogen vacancy;
machining a portion of the diamond to form a reflector; and
positioning a photo detector relative to the diamond to receive light emitted from the diamond.
51 . The method of claim 50 further comprising:
applying a dielectric mirror film coat to a portion of the diamond.
52 . The method of claim 50 , wherein a layer of the diamond does not have nitrogen vacancies.
53 . The method of claim 50 , wherein a portion of the diamond is machined into a parabolic shape.
54 . The method of claim 50 , wherein a portion of the diamond is machined into an ellipsoidal shape.
55 . A method for constructing a DNV sensor, the method comprising:
providing a diamond having a nitrogen vacancy and a reflector; and
positioning the diamond within the reflector such that the reflector reflects a portion of light from the diamond.
56 . The method of claim 55 further comprising:
positioning a photo detector relative to the diamond to receive light reflected by the reflector.
57 . The method of claim 55 , wherein the reflector is monolithic.
58 . The method of claim 57 , wherein the diamond is positioned within a borehole of the monolithic reflector.
59 . The method of claim 58 , wherein the borehole is backfilled.
60 . The method of claim 57 , wherein the reflector comprises two or more pieces, wherein positioning the diamond within the reflector comprises inserting the diamond between the two or more pieces.
61 . The method of claim 60 , wherein the diamond is substantially flat.
62 . The method of claim 60 , wherein the two or more pieces of the reflector are parabolic in shape.
63 . The method of claim 62 , wherein the diamond is positioned parallel to an axis of symmetry of the reflector.
64 . The method of claim 62 , wherein the diamond is positioned perpendicular to an axis of symmetry of the reflector.
65 . The method of claim 60 , wherein the two or more pieces of the reflector are ellipsoidal in shape.
66 . The method of claim 65 , wherein the diamond is positioned along a major axis of the reflector.
67 . The method of claim 65 , wherein the diamond is positioned along a minor axis of the reflector.
68 . The method of claim 57 , wherein positioning the diamond within the reflector comprises casting the reflector about the diamond.
69 . A diamond nitrogen-vacancy (DNV) sensor comprising:
a diamond having a nitrogen vacancy;
a reflector positioned about the diamond to reflect a portion of light emitted from the diamond; and
a waveguide positioned within the reflector to direct light to the diamond.
70 . The DNV sensor of claim 69 further comprising:
a photo detector to measure the portion of light emitted from the diamond.
71 . The DNV sensor of claim 70 , wherein the photo detector is sealed to a portion of the reflector.
72 . The DNV sensor of claim 70 further comprising:
an emitter to emit light to excite the nitrogen vacancy of the diamond, the emitter positioned at a first end of the waveguide, the diamond positioned at a second end of the waveguide.
73 . The DNV sensor of claim 72 , wherein the emitter is positioned within the photo detector.
74 . The DNV sensor of claim 73 , wherein the emitter is positioned at a center of the photo detector.
75 . The DNV sensor of claim 72 , wherein the photo detector and emitter are positioned on a substrate.
76 . The DNV sensor of claim 75 , wherein the photo detector and emitter positioned on the substrate form a single chip.
77 . The DNV sensor of claim 72 further comprising:
an optical filter coupled to the photo detector.
78 . The DNV sensor of claim 77 , wherein the optical filter is a red filter.
79 . The DNV sensor of claim 69 , wherein the reflector is parabolic.
80 . The DNV sensor of claim 79 , wherein the waveguide is positioned parallel to an axis of symmetry of the reflector.
81 . The DNV sensor of claim 69 , wherein the reflector is ellipsoidal.
82 . The DNV sensor of claim 81 , wherein the waveguide is positioned parallel to a major axis of the reflector.