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Fast localized wavefront correction using area-mapped phase-shift interferometry.

ABSTRACT: We propose an innovative method for localized wavefront correction based on area-mapped phase-shift (AMPS) interferometry. In this Letter, we present the theory and then experimentally compare it with a previously demonstrated method based on spot-optimized phase-stepping (SOPS) interferometry. We found that AMPS outperforms SOPS interferometry in terms of speed by threefold, although in noisy environments the improvements may be larger. AMPS yielded similar point-spread functions (PSF) as SOPS for moderate system-induced aberrations, but yielded a slightly less ideal PSF for larger aberrations. The method described in this Letter may prove crucial for applications where the phase-stepping solution does not have sufficient speed.

SUBMITTER: Hall G

PROVIDER: S-EPMC4487656 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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Fast localized wavefront correction using area-mapped phase-shift interferometry.

Hall Gunnsteinn G Spalding Gabriel C GC Campagnola Paul J PJ White John G JG Eliceiri Kevin W KW

Optics letters 20110801 15

We propose an innovative method for localized wavefront correction based on area-mapped phase-shift (AMPS) interferometry. In this Letter, we present the theory and then experimentally compare it with a previously demonstrated method based on spot-optimized phase-stepping (SOPS) interferometry. We found that AMPS outperforms SOPS interferometry in terms of speed by threefold, although in noisy environments the improvements may be larger. AMPS yielded similar point-spread functions (PSF) as SOPS ...[more]

PMID: 21808349

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