Extended Data Fig. 9: Temporal coherence.
From: Interlayer exciton laser of extended spatial coherence in atomically thin heterostructures
Shown are temporal coherence interference fringes at g(1)(τ = 0) measured using a two-retro-reflector Michelson interferometer under CW excitation above threshold. a, Interferogram image at τ = 0. b, Horizontal line-cut of a around y = 1.5 μm. The red line is a fit to the Gaussian pump beam profile modulated by a cosine function. Here g(1)(τ = 0) = 0.78.
