Single-Crystal Diamonds with Nitrogen-Vacancy (NV) Centers


  • Quantum Grade Diamonds Grown by Chemical Vapor Deposition
  • Uniform Distribution of NV Centers
  • Two NV Center Densities Available

DNVB1

NV: 300 ppb
Coherence Time T2: 200 µs

Nitrogen-Vacancy Centers

Nitrogen-vacancy centers are defects in the
carbon lattice that are paired with adjacent vacancies.

V

N

C

DNVB14

NV: 4.5 ppm
Coherence Time T2: 10 µs

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Item # DNVB1 DNVB14
Quantum Properties
Typical NV Center Density 300 ppb 4.5 ppm
Typical Spin Coherence Time T2* a 1 µs 0.5 µs
Typical Spin Coherence Time T2 b 200 µs 10 µs
General Specifications
Crystallographic Orientation {100} ± 3°
Typical Dimensions (L x W x H) 3.0 mm x 3.0 mm x 0.5 mm
Dimensional Tolerance 0.05 mm
Edge Features <0.2 mm
Roughness, Ra <10 nm
13C Fraction 1.1%
  • Inhomogeneous Transverse Spin Coherence Time
  • Hahn-Echo Measured Spin Coherence Time

Features

  • Quantum Grade, Single-Crystal Diamonds Grown by Chemical Vapor Deposition (CVD)
  • Two NV Center Densities Available:
    • DNVB1: 300 ppb
    • DNVB14: 4.5 ppm

These quantum-grade diamonds, which are manufactured by Element Six using patented processes and offered by Thorlabs to enable quantum research advancements, are available with either 300 ppb or 4.5 ppm nitrogen-vacancy (NV) center densities. This produces diamond NV (DNV) centers with readable and writable spin qubits that have long lifetimes at room temperature, advantages that arise from the structure and strong covalent bonds of diamond. The density of NV spin centers, their uniform distribution, the spin characteristics, and the compact form factor make this diamond ideal for AC magnetic field sensing, RF detection, gyroscopes, masers, quantum demonstrations, and research applications.

Nitrogen Vacancy Transition Diagram
Click to Enlarge

The energy level diagram for a diamond NV center in zero magnetic field. The spin triplet ground (3A2) and excited (3E) states have an energy difference of 637 nm (1.945 eV), and each is split into singly degenerate ms = 0 and doubly degenerate ms = ±1 spin states with energy differences of Dgs = 2.88 GHz (12 µeV) and Des = 1.42 GHz (5.9 µeV), respectively. Note, the scale of the spin sub-level splitting is highly exaggerated to be visible. There are also two optically dark, ms = 0 intermediate states (1A and 1E) with an energy difference of 1042 nm (1.190 eV).
Nitrogen Vacancy Transition Diagram
Click to Enlarge

The triplet ground state of an NV- center shows fine structure splitting (Dgs = 2.88 GHz) between the ms = 0 and ms = ±1 states due to spin-spin interactions. Application of an external magnetic field (B) along the [111] defect axis causes a further splitting (ΔE = 2gµBB) of the ms = ±1 states due to the Zeeman effect, where g is the Landé factor and µB is the Bohr magneton.

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DNVB1 Support Documentation
DNVB1NEW!Single-Crystal Diamond, Nitrogen-Vacancy Center Density: 300 ppb
$1,375.00
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DNVB14 Support Documentation
DNVB14NEW!Single-Crystal Diamond, Nitrogen-Vacancy Center Density: 4.5 ppm
$3,105.00
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