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Fabrication of ultrahigh-precision hemispherical mirrors for quantum-optics applications.

ABSTRACT: High precision, high numerical aperture mirrors are desirable for mediating strong atom-light coupling in quantum optics applications and can also serve as important reference surfaces for optical metrology. In this work we demonstrate the fabrication of highly-precise hemispheric mirrors with numerical aperture NA?=?0.996. The mirrors were fabricated from aluminum by single-point diamond turning using a stable ultra-precision lathe calibrated with an in-situ white-light interferometer. Our mirrors have a diameter of 25?mm and were characterized using a combination of wide-angle single-shot and small-angle stitched multi-shot interferometry. The measurements show root-mean-square (RMS) form errors consistently below 25?nm. The smoothest of our mirrors has a RMS error of 14?nm and a peak-to-valley (PV) error of 88?nm, which corresponds to a form accuracy of ?/50 for visible optics.

SUBMITTER: Higginbottom DB

PROVIDER: S-EPMC5760700 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature

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Fabrication of ultrahigh-precision hemispherical mirrors for quantum-optics applications.

Higginbottom Daniel B DB Campbell Geoff T GT Araneda Gabriel G Fang Fengzhou F Colombe Yves Y Buchler Ben C BC Lam Ping Koy PK

Scientific reports 20180109 1

High precision, high numerical aperture mirrors are desirable for mediating strong atom-light coupling in quantum optics applications and can also serve as important reference surfaces for optical metrology. In this work we demonstrate the fabrication of highly-precise hemispheric mirrors with numerical aperture NA = 0.996. The mirrors were fabricated from aluminum by single-point diamond turning using a stable ultra-precision lathe calibrated with an in-situ white-light interferometer. Our mirr ...[more]

PMID: 29317728

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