Measuring the charge density of a tapered optical fiber using trapped microparticles

Optics Express
Kazuhiko KamitaniShinji Urabe

Abstract

We report the measurements of charge density of tapered optical fibers using charged particles confined in a linear Paul trap at ambient pressure. A tapered optical fiber is placed across the trap axis at a right angle, and polystyrene microparticles are trapped along the trap axis. The distance between the equilibrium position of a positively charged particle and the tapered fiber is used to estimate the amount of charge per unit length of the fiber without knowing the amount of charge of the trapped particle. The charge per unit length of a tapered fiber with a diameter of 1.6 μm was measured to be 2-1+3×10(-11) C/m.

References

Jan 6, 1999·Biophysical Journal·W F Heinz, J H Hoh
Mar 3, 1986·Physical Review Letters·G BinnigC Gerber
Jun 20, 2008·Nature·H J Kimble
Jul 20, 2010·Optics Express·Hideaki TakashimaShigeki Takeuchi
Sep 28, 2010·Physical Review Letters·Andrew A GeraciJohn Kitching
Jun 7, 2011·Optics Express·Masazumi FujiwaraShigeki Takeuchi
Sep 8, 2011·Nano Letters·Masazumi FujiwaraShigeki Takeuchi
May 9, 2012·Optics Express·Tim SchröderShigeki Takeuchi
Aug 7, 2012·Physical Review Letters·A GobanH J Kimble
Mar 9, 2013·Science·C Monroe, J Kim
Apr 11, 2015·Physical Review Letters·J MillenP F Barker
May 7, 2015·Scientific Reports·Andreas W SchellShigeki Takeuchi
Sep 1, 2015·Physical Review Letters·F AlbrechtP Jelínek

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Citations

Nov 3, 2016·Optics Letters·Artemiy V Dmitriev, M Sumetsky

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