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arXiv · 0801.3531

Experimental sub-Rayleigh resolution by an unseeded high-gain optical parametric amplifier for quantum lithography

Fabio Sciarrino·Chiara Vitelli·Francesco De Martini·Ryan Glasser·Hugo Cable·Jonathan P. Dowling
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Abstract

Quantum lithography proposes to adopt entangled quantum states in order to increase resolution in interferometry. In the present paper we experimentally demonstrate that the output of a high-gain optical parametric amplifier can be intense yet exhibits quantum features, namely, sub-Rayleigh fringes, as proposed by Agarwal et al. (Phys. Rev. Lett. 86, 1389 (2001)). We investigate multiphoton states generated by a high-gain optical parametric amplifier operating with a quantum vacuum input for a gain values up to 2.5. The visibility has then been increased by means of three-photon absorption. The present article opens interesting perspectives for the implementation of such an advanced interferometrical setup.

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Fabio Sciarrino, Chiara Vitelli, Francesco De Martini, Ryan Glasser, Hugo Cable, Jonathan P. Dowling. 2008-01-23. Experimental sub-Rayleigh resolution by an unseeded high-gain optical parametric amplifier for quantum lithography. https://doi.org/10.1103/physreva.77.012324

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