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Fabrication and characterization of super-polished wedged borosilicate nano-cells

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arxiv 1901.03608 v1 pith:33RK6CW7 submitted 2019-01-11 physics.atom-ph physics.app-phphysics.optics

Fabrication and characterization of super-polished wedged borosilicate nano-cells

classification physics.atom-ph physics.app-phphysics.optics
keywords cellfabricationroughnessalkaliall-glassallowsangstrassembling
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report on the fabrication of an all-glass vapor cell with a thickness varying linearly between (exactly) 0 and ~ 1 {\mu}m. The cell is made in Borofloat glass that allows super polish roughness, a full optical bonding assembling and easy filling with alkali vapors. We detail the challenging manufacture steps and present experimental spectra resulting from off-axis fluorescence and transmission spectroscopy of the Cesium D1 line. The very small surface roughness of 1 Angstr\"om rms is promising to investigate the atom-surface interaction or to minimize parasite stray light.

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