UNWRAP: Single-shot phase analysis of bright squeezed vacuum by Newton-ring interferometry

@misc{ma2026unwrap,
  title = {{UNWRAP: Single-shot phase analysis of bright squeezed vacuum by Newton-ring interferometry}},
  author = {Haoran Ma and Yihe Wang and Chuan Cheng and Ian Gabalski and Aaron M. Ghrist and Eleanor Weckwerth and Mohammed Th. Hassan and Philip H. Bucksbaum},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.30005},
  eprint = {2610.30005},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.30005},
}

TY  - UNPB
TI  - UNWRAP: Single-shot phase analysis of bright squeezed vacuum by Newton-ring interferometry
AU  - Haoran Ma
AU  - Yihe Wang
AU  - Chuan Cheng
AU  - Ian Gabalski
AU  - Aaron M. Ghrist
AU  - Eleanor Weckwerth
AU  - Mohammed Th. Hassan
AU  - Philip H. Bucksbaum
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2610.30005
UR  - https://arxiv.org/abs/2610.30005
AB  - The mean field of pulsed bright squeezed vacuum (BSV) vanishes, but the variance can be large, and is strongly phase-dependent. We employ ultrafast Newton-ring wavefront retrieval and analysis of phase (UNWRAP) to extract the field amplitude and phase profile of each BSV pulse, by Fourier analysis of the interference rings between the BSV and a coherent reference with different phase-front curvature. The concentric ring interference fringes are robust against pointing mismatch and drift, thereby simplifying the analysis. The measured distribution has two phase peaks separated by π radians. The rings sweep the delay between the two pulses, so a single frame can capture the temporal field profile of the BSV, even when it is composed of several temporal modes.
ER  -