Single Photon Emitters
The NV single emitter series features fluorescent diamond containing very low amounts of NV centers per particles. These products are geared toward sensing applications, where the unique spin properties of the NV- center are exploited for use in signaling and sensing. Sizes available include 10nm and 40nm particles. Applications areas include, but are not limited to:
Quantum optics and quantum computing
Single photon emitter applications
Neuron firing detection
Single cell tracking and sensing
Technical Characteristics
The level of fluorescence and the population of fluorescent diamond particles in the sub-15nm range is generally very low. These particles are not suitable for direct cellular imaging, but will require users equipped with highly advanced optical setups to use effectively. Therefore, these particles are more suitable for users interested in single emitter applications. The quality of NV- centers in these particles is relatively low due to large lattice distortion and damage induced from milling from larger sizes. Single particle fluorescence characterization confirmed the presence of active NV- centers, and determined that the approximate NV- /NV0 ratio was ~0.6, so fluorescing particles contain ~60% NV0 and ~40% NV-.
Combined HRTEM, AFM, and DLS confirms the presence of particles 10nm in size and below. Shapes are irregular, with some particles exhibiting flat, elongated shapes. Some particles exhibit an amorphous patches of sp2 carbon even after extensive oxidation.
The 40nm single emitter series is the most popular product in use for quantum optics research groups. Single particle characterization determined the average number of emitters (NV centers) per particle to range from 1-4 on average. The NV- /NV0 ratio was determined to be ~0.7.
