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

Autor: Higginbottom DB; Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia. daniel.higginbottom@anu.edu.au.; Institut für Experimentalphysik, Universität Innsbruck, Technikerstr. 25, 6020, Innsbruck, Austria. daniel.higginbottom@anu.edu.au., Campbell GT; Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia., Araneda G; Institut für Experimentalphysik, Universität Innsbruck, Technikerstr. 25, 6020, Innsbruck, Austria., Fang F; State Key Laboratory of Precision Measuring Technology & Instruments, Centre of MicroNano Manufacturing Technology, Tianjin University, Tianjin, 300072, China., Colombe Y; Institut für Experimentalphysik, Universität Innsbruck, Technikerstr. 25, 6020, Innsbruck, Austria., Buchler BC; Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia., Lam PK; Centre for Quantum Computation and Communication Technology, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 2601, Australia. ping.lam@anu.edu.au.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2018 Jan 09; Vol. 8 (1), pp. 221. Date of Electronic Publication: 2018 Jan 09.
DOI: 10.1038/s41598-017-18637-8
Abstrakt: 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 λ/50 for visible optics.
Databáze: MEDLINE
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