4 papers
From Heat Capacity to Coherence in Ultra-Narrow-Linewidth Solid-State Optical Emitters at Sub-Kelvin Temperatures
D Serrano, T Klein, C Marcenat +5
The coherence properties of optical emitters in crystals are crucial for quantum technologies and optical frequency metrology. Cooling to sub-kelvin temperatures can markedly enhan…
Thermal-noise Limits to the Frequency Stability of Burned Spectral Holes
M T Hartman, N Wagner, S Seidelin +1
Techniques in frequency stabilization of lasers to fixed-spacer optical cavities have advanced to the point where the ultimate frequency stabilities are limited by thermal noise in…
Homogeneous Linewidth Behaviour of Narrow Optical Emitters at Sub-kelvin Temperatures
X Lin, M T Hartman, P Goldner +3
We explore the properties of ultra-narrow spectral holes in ensembles of solid-state emitters in crystals over a range of sub-kelvin temperatures, with a focus on their potential a…
Anomalous sub-kelvin thermal frequency shifts of ultra narrow-linewidth solid state emitters
X. Lin, M. T. Hartman, B. Pointard +5
We investigate the frequency response of narrow spectral holes in a doped crystal structure as a function of temperature below 1 K. We identify a particular regime in which this re…