Fig. 4: Experimental demonstration of a multi-band receiver and reference-free design. | Communications Engineering

Fig. 4: Experimental demonstration of a multi-band receiver and reference-free design.

From: Towards ubiquitous radio access using nanodiamond based quantum receivers

Fig. 4

a Lower frequency band (2700 MHz to 2776 MHz) and b higher frequency band (2963 MHz to 3020 MHz). (Left) Optically detected magnetic resonance (ODMR) spectrum of the fluorescent nanodiamond (FND) marked by a blue circle. (Right) The recovered images at the FND-receiver’s end. c Reference-free orthogonal multiple access. (Left) ODMR spectra of the two FNDs labelled by blue and green circles. (Right) The recovered images at the FND-receiver’s end.

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