Abstract

Subwavelength detection of object displacement with use of a polychromatic interferometric imaging system is demonstrated experimentally. Object position detection with 50-nm lateral resolution is achieved. This result derives from and is consistent with increases in information capacity with use of phase-sensitive polychromatic systems identified by Basinger, et al. [J. Opt. Soc. Am. A 12, 704 (1995)]. This phase-sensitive polychromatic detection relies on an imaging interferometric cross-correlating receiver capable of 2-nm optical path difference resolution.

© 1997 Optical Society of America

Degrees of freedom of polychromatic images

Scott A. Basinger, Eric Michielssen, and David J. Brady
J. Opt. Soc. Am. A 12(4) 704-714 (1995)

Superresolving scanning optical microscopy using holographic optical processing

J. G. Walker, E. R. Pike, R. E. Davies, M. R. Young, G. J. Brakenhoff, and M. Bertero
J. Opt. Soc. Am. A 10(1) 59-64 (1993)

Atmospheric scattering effect on spatial resolution of imaging systems

B. Ben Dor, A. D. Devir, G. Shaviv, P. Bruscaglioni, P. Donelli, and A. Ismaelli
J. Opt. Soc. Am. A 14(6) 1329-1337 (1997)

Superresolving masks for incoherent scanning microscopy

J. Grochmalicki, E. R. Pike, J. G. Walker, M. Bertero, P. Boccacci, and R. E. Davies
J. Opt. Soc. Am. A 10(5) 1074-1077 (1993)

Use of the analyticity of the generalized Fourier spectrum in object reconstruction

Darryl J. Sanchez and J. K. McIver
J. Opt. Soc. Am. A 14(4) 792-798 (1997)