Extended Data Fig. 1: Experimental setup and device.
From: Quantum thermalization and Floquet engineering in a spin ensemble with a clock transition
a, The red line indicates the beam path of a 984 nm laser. The laser is locked to the frequency of the A transition. A frequency sideband at the F transition is generated by an EOM. Optical pulses are generated using AOMs. Both the EOM and AOMs are driven by gated RF sources. The light passes through a circulator to the device, and the reflected light is directed to a SNSPD for time-resolved photon counting. The blue lines indicate microwave signal delivery. RF pulses for the ground state spin transition (fg ≈ 0.675 GHz) and excited state spin transition (fe ≈ 3.37 GHz) are generated using frequency up-conversion from the local oscillator signal mixed with the output of the AWG. The signals after the mixers pass through band-pass filters and amplifiers, and are then combined using a diplexer before being sent to the device. b, Scanning electron microscope image of the chip in the dilution fridge, surrounded by a coplanar waveguide. c, Scanning electron microscope image of the nanophotonic device.
