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Nanometer Scale Quantum Thermometer

  • US 20160018269A1
  • Filed: 04/01/2014
  • Published: 01/21/2016
  • Est. Priority Date: 04/02/2013
  • Status: Active Grant
First Claim
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1. A method of measuring temperature comprising:

  • providing an electron spin system comprising a diamond NV center proximal to a heat source, said diamond NV center having a temperature-dependent zero-field splitting of its ground electronic spin state;

    applying an optical pulse to polarize the ground electronic spin state;

    applying a plurality of microwave pulses to alter the spin population of the spin system;

    applying a series of optical pulses to the spin system and measuring a spin-state-dependent fluorescence rate to detect the spin projection of the electronic ground state of the NV center.

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