Active suppression of air refractive index fluctuation using a Fabry–Perot cavity and a piezoelectric volume actuator

Autor:	Tuan Quoc Banh, Yuria Ohkubo, Masato Aketagawa, Yoshinosuke Murai
Rok vydání:	2010
Předmět:	Physics business.industry Materials Science (miscellaneous) Piezoelectricity Industrial and Manufacturing Engineering Metrology Interferometry Optics Volume (thermodynamics) Business and International Management Actuator business Refractive index Phase modulation Fabry–Pérot interferometer
Zdroj:	Applied Optics. 50:53
ISSN:	1539-4522 0003-6935
DOI:	10.1364/ao.50.000053
Popis:	Air refractive index fluctuation (Δn(air)) is one of the largest uncertainty sources in precision interferometry systems that require a resolution of nanometer order or less. We introduce a method for the active suppression of Δn(air) inside a normal air-environment chamber using a Fabry-Perot cavity and a piezoelectric volume actuator. The temporal air refractive index (n(air)) at a local point is maintained constant with an expanded uncertainty of ~4.2 × 10(-9) (k = 2), a sufficiently low uncertainty for precise measurements unaffected by Δn(air) to be made inside a chamber.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ba42695ea1854b9993174f662596561 https://doi.org/10.1364/ao.50.000053 Zobrazit plný text záznamu