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Experimental demonstration of exposure-free imaging and contrast amplification
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
2000 (English)In: Journal of Optics B-Quantum and Semiclassical Optics, ISSN 1464-4266, E-ISSN 1741-3575, Vol. 2, no 3, 338-345 p.Article in journal (Refereed) Published
Abstract [en]

Interference between waves can yield quite counterintuitive results. Some time ago, Elizur and Vaidman (1993 Found. Phys. 23 987) proposed a way to detect the presence or absence of a perfectly absorbing object by probing it with light, without any photons being absorbed. Here we present experimental results where a photographic film's shape is imaged on an identical piece of film without exposing the first film. This is possible by using resonant imaging, i.e. by holding the film to be imaged inside an optical resonator. Using the same technique, it is also possible to image nearly transparent objects. The resonant imaging will 'amplify' small transmission variations rendering the nearly invisible clearly visible.

Place, publisher, year, edition, pages
2000. Vol. 2, no 3, 338-345 p.
Keyword [en]
quantum imaging, quantum measurement, interaction-free measurement, multipass absorption, Fabry-Perot resonator, energy-exchange-free, realization, objects
URN: urn:nbn:se:kth:diva-20106ISI: 000089908900022OAI: diva2:338799
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Björk, Gunnar
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