Fig. 2: Spectral hole burning. | Nature Communications

Fig. 2: Spectral hole burning.

From: Week-long-lifetime microwave spectral holes in an erbium-doped scheelite crystal at millikelvin temperature

Fig. 2

Measured (blue solid line) and simulated (black solid line) spin density ρ1(ω) normalized to the unperturbed spin density ρ0(ω). Each sequence starts with a repetitive high power (∼ −96 dBm) reset scan with a range of 4 MHz centered at ω0, followed by a lower power (∼ −156 dBm) reference scan with a range of 100 kHz yielding ρ0(ω), a pumping step at single frequency ωp (power -106 dBm), and a measurement scan yielding ρ1(ω). The entire sequence is repeated for ten times. The pump frequency ωp/2π is ω0/2π − 795  kHz (a), ω0/2π + 795 kHz (b) and ω0 (c). Green, red, and gray arrows point respectively to H/AH structure due to Types I–III 183W nuclear spins.

Back to article page