FIELD: physics.
SUBSTANCE: invention relates to magnetic resonance spectroscopy techniques and specifically to optical detection of magnetic resonance (ODMR), involving optical detection of electron paramagnetic resonance (EPR) and can be used in analysis of condensed materials and nanostructures by an ODMR technique in physics, chemistry, biology and other fields. The method for optical detection of magnetic resonance involves predetermination of microwave frequency and the value of the magnetic field for meeting resonance conditions from known parameters of the analysed object. The sample is then exposed to light whose energy matches luminescence excitation bands in the sample, and the sample is exposed to the microwave field and magnetic field with predetermined values. The magnetic resonance signal is detected from the change in luminescence intensity when temperature of the sample varies in the detection range of the full magnetic resonance spectrum. The apparatus for optical detection of magnetic resonance has a microwave generator, a system for conveying microwave power to the sample, a magnetic system, an optical system, a low frequency generator, a synchronous detector and a control and detection unit. The apparatus includes a sample temperature control unit having a heat-insulating chamber for the sample with a heating element and a temperature controller.
EFFECT: detecting ODMR spectra without use of magnetic field and microwave frequency scanning.
2 cl, 4 dwg
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