Arbitrarily high super-resolving phase measurements at telecommunication wavelengths
2010 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 81, no 6, 63836- p.Article in journal (Refereed) Published
We present two experiments that achieve phase super-resolution at telecommunication wavelengths. One of the experiments is realized in the space domain and the other is realized in the time domain. Both experiments show high visibility and are performed with standard lasers and single-photon detectors. The first experiment uses six-photon coincidences, whereas the latter experiment needs no coincidence measurements, is easy to perform, and achieves, in principle, arbitrarily high phase super-resolution. Here, we demonstrate a 30-fold increase of the resolution. We stress that neither entanglement nor joint detection is needed in these experiments, which demonstrates that neither is necessary to achieve phase super-resolution.
Place, publisher, year, edition, pages
2010. Vol. 81, no 6, 63836- p.
IdentifiersURN: urn:nbn:se:su:diva-49900DOI: 10.1103/PhysRevA.81.063836ISI: 000279381300003OAI: oai:DiVA.org:su-49900DiVA: diva2:380440
authorCount :32010-12-212010-12-202010-12-21Bibliographically approved