DOI: 10.1063/1.1418256. Sub-attonewton force detection at millikelvin temperatures

Sub-attonewton force detection at millikelvin temperatures

10.1063/1.1418256

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

A 290-nm-thick single-crystal silicon cantilever has been cooled in vacuum to a temperature of 110 mK in order reduce its thermal motion and thereby improve the achievable force resolution. Since the thermal conductivity of the silicon cantilever is extremely low at millikelvin temperatures, an improved optical fiber interferometer was developed to measure the subangstrom thermal motion with optical powers as low as 2 nW. At the lowest temperature, the cantilever exhibited a quality factor of 150 000 and achieved a noise temperature of 220 mK, with a corresponding force noise of 820 zN in a 1 Hz bandwidth.

Bibliography

Mamin, H. J., & Rugar, D. (2001). Sub-attonewton force detection at millikelvin temperatures. Applied Physics Letters, 79(20), 3358â3360.

Authors 2

H. J. Mamin (first)
D. Rugar (additional)

References 19 Referenced 377

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Dates

Type	When
Created	23 years ago (July 26, 2002, 8:42 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 4:04 p.m.)
Indexed	2 weeks, 4 days ago (Aug. 6, 2025, 9:51 a.m.)
Issued	23 years, 9 months ago (Nov. 12, 2001)
Published	23 years, 9 months ago (Nov. 12, 2001)
Published Print	23 years, 9 months ago (Nov. 12, 2001)

Funders 0

None

BibTeX

@article{Mamin_2001, title={Sub-attonewton force detection at millikelvin temperatures}, volume={79}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.1418256}, DOI={10.1063/1.1418256}, number={20}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Mamin, H. J. and Rugar, D.}, year={2001}, month=nov, pages={3358–3360} }

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