Patent ID: 9720055
Date: 2017-08-01
CPC Classifications: G01J,G01R

Claim:
1. A device comprising: a diamond with a nitrogen vacancy; a light source configured to transmit light toward the diamond; a first sensor configured to sense a first portion of the light transmitted from the light source, wherein the first portion of the light does not travel through the diamond; a second sensor configured to sense a second portion of the light transmitted from the light source, wherein the second portion of the light travels through the diamond; a third sensor configured to sense a third portion of the light, wherein the third portion of the light travels through the diamond to the third sensor; a first light pipe configured to direct the second portion of the light from the diamond to the second sensor; a second light pipe configured to direct the third portion of the light from the diamond to the third sensor, wherein the first light pipe and the second light pipe are aligned along a central axis; a first waveguide cutoff filter surrounding the first light pipe that is configured to attenuate electromagnetic waves; and a second waveguide cutoff filter surrounding the second light pipe.