We present an experimental method to measure the transverse spatial quantum state of an optical field in coordinate space at the single-photon level. The continuous-variable measurements are made with a photon-counting, parity-inverting Sagnac interferometer based on all-reflecting optics. The technique provides a large numerical aperture without distorting the shape of the wavefront, does not introduce astigmatism, and allows for characterization of fully or partially coherent optical fields...Expand abstract
- Publication status:
- Publisher copy:
- Copyright date:
Measurement of the transverse spatial quantum state of light at the single-photon level.
If you are the owner of this record, you can report an update to it here: Report update to this record