3 papers
physics.optics2026
Upconversion Dual-comb Passive Spectroscopy of Mid-IR Incoherent Light
Mingchen Liu, Matthew Heyrich, Sichong Ma +1
We introduce cross-comb correlation spectroscopy, which correlates signals from asynchronous sum-frequency sampling of mid-IR incoherent light with two near-IR combs. We experiment…
physics.optics2024
Optical-parametric-amplification-enhanced background-free spectroscopy
Mingchen Liu, Robert M. Gray, Arkadev Roy +2
Traditional absorption spectroscopy has fundamental difficulty in resolving small absorbance from strong background due to the instability of laser sources. Existing background-fre…
quant-ph2023
Adaptive protocols for SU(11) interferometers to achieve ab initio phase estimation at the Heisenberg limit
Mingchen Liu, Lijian Zhang, Haixing Miao
The precision of phase estimation with interferometers can be greatly enhanced using non-classical quantum states, and the SU(11) interferometer is an elegant scheme, which generat…