Color Erasure Detectors Enable Chromatic Interferometry
arXiv:1905.01823 · doi:10.1103/PhysRevLett.123.243601
Abstract
By engineering and manipulating quantum entanglement between incoming photons and experimental apparatus, we construct single-photon detectors which cannot distinguish between photons of very different wavelengths. These color erasure detectors enable a new kind of intensity interferometry, with potential applications in microscopy and astronomy. We demonstrate chromatic interferometry experimentally, observing robust interference using both coherent and incoherent photon sources.
arXiv comment21 pages, 7 figures
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- Monolithic photonic chips for multi-channel frequency mixers and single photon detectors
- Improved Spatial Resolution Achieved by Chromatic Intensity Interferometry
- Chromatic interferometry with small frequency differences