Efficient Fluorescence Detection In Solid State Spin Systems

摘要

Efficient fluorescence detection is achieved by optically guiding fluorescence light generated by color centers within a sample to photodetectors outside the sample. A fluorescence detection system may use a sample containing one or more fluorescence color centers that emit fluorescent light when irradiated with excitation light from an optical source. The sample has an index of refraction greater than its surrounding medium. The sample may include one or more output faces and further include at least two opposing faces configured to internally reflect the fluorescent light emitted by the fluorescent color centers, and to optically guide the emitted fluorescent light to the one or more output faces. The fluorescence detection system may include one or more optical detector configured to receive fluorescent light emitted through the one or more output faces, and a microwave source configured to manipulate the electronic spin of the fluorescent color centers.

主权项

1. A fluorescence detection system comprising:
an optical source configured to generate excitation light; a sample containing one or more fluorescence color centers that emit fluorescent light when irradiated with the excitation light from the optical source, wherein the sample has an index of refraction greater than its surrounding medium, said sample comprising at least one output face and further comprising at least two opposing faces configured to internally reflect the fluorescent light emitted by the one or more fluorescent color centers and optically guide the emitted fluorescent light to said at least one output face; at least one optical detector configured to receive fluorescent light emitted through said at least one output face; and a microwave source configured to manipulate electronic spin of the one or more fluorescent color centers.