# Second-Order Temporal Interference with Thermal Light: Interference Beyond the Coherence Time

@article{Ihn2018SecondOrderTI, title={Second-Order Temporal Interference with Thermal Light: Interference Beyond the Coherence Time}, author={Yong Sup Ihn and Yosep Kim and Vincenzo Tamma and Yoon-ho Kim}, journal={2018 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)}, year={2018}, pages={1-2} }

We report an experimental demonstration for a counter-intuitive phenomenon in multi-path interferometer with thermal light. The intensity correlation between the outputs of two unbalanced Mach-Zehnder interferometers (UMZIs) with two correlated beams of thermal light at the input exhibits genuine second-order interference with the visibility of 1/3. Here, the second-order interference does not degrade at all no matter how much the path length difference in each UMZI is increased beyond the… Expand

#### 14 Citations

The physics of thermal light second-order interference beyond coherence

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