Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires

W. J. Toe; I. O. Piwonka; A. Andres-Arroyo; Q. Gao; H. H. Tan; C. Jagadish; B. Henry; C. Angstmann; P. J. Reece

doi:10.1117/12.2062673

Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires

W. J. Toe, I. O. Piwonka, A. Andres-Arroyo, Q. Gao, H. H. Tan, C. Jagadish, B. Henry, C. Angstmann, P. J. Reece

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In the following study we investigate the dynamics of high aspect ratio nanowires held in a single gradient force optical trap in an overdamped environment. Power spectrum analysis performed on the stochastic trajectory of the optically trapped nanowires indicate that the motion of these nanowires shows characteristics of underdamped motion, where a broad resonance peak is present in the power spectrum of amplitude fluctuations under certain conditions. The resonance occurs when the nanowires are trapped at a height of 50 μm from the cover slip of the sample chamber. The emergence of a resonance peak in the power spectrum could be attributed to the non-conservative motion of nanowires being nonspherical, thus creating a bias towards cyclic motion as examined theoretically by Simpson and Hanna [12].

Original language	English
Title of host publication	Optical Trapping and Optical Micromanipulation XI
Editors	Gabriel C. Spalding, Kishan Dholakia
Publisher	SPIE
ISBN (Electronic)	9781628411911
DOIs	https://doi.org/10.1117/12.2062673
Publication status	Published - 2014
Event	Optical Trapping and Optical Micromanipulation XI - San Diego, United States Duration: 17 Aug 2014 → 21 Aug 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9164
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Optical Trapping and Optical Micromanipulation XI
Country/Territory	United States
City	San Diego
Period	17/08/14 → 21/08/14

Access to Document

10.1117/12.2062673

Cite this

Toe, W. J., Piwonka, I. O., Andres-Arroyo, A., Gao, Q., Tan, H. H., Jagadish, C., Henry, B., Angstmann, C., & Reece, P. J. (2014). Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires. In G. C. Spalding, & K. Dholakia (Eds.), Optical Trapping and Optical Micromanipulation XI Article 91641L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9164). SPIE. https://doi.org/10.1117/12.2062673

@inproceedings{eada3746ab46424ea0a1b99e2d1ad2cf,

title = "Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires",

abstract = "In the following study we investigate the dynamics of high aspect ratio nanowires held in a single gradient force optical trap in an overdamped environment. Power spectrum analysis performed on the stochastic trajectory of the optically trapped nanowires indicate that the motion of these nanowires shows characteristics of underdamped motion, where a broad resonance peak is present in the power spectrum of amplitude fluctuations under certain conditions. The resonance occurs when the nanowires are trapped at a height of 50 μm from the cover slip of the sample chamber. The emergence of a resonance peak in the power spectrum could be attributed to the non-conservative motion of nanowires being nonspherical, thus creating a bias towards cyclic motion as examined theoretically by Simpson and Hanna [12].",

keywords = "Optical trapping, gradient force optical trap., nanowires",

author = "Toe, {W. J.} and Piwonka, {I. O.} and A. Andres-Arroyo and Q. Gao and Tan, {H. H.} and C. Jagadish and B. Henry and C. Angstmann and Reece, {P. J.}",

note = "Publisher Copyright: {\textcopyright} 2014 SPIE.; Optical Trapping and Optical Micromanipulation XI ; Conference date: 17-08-2014 Through 21-08-2014",

year = "2014",

doi = "10.1117/12.2062673",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Spalding, {Gabriel C.} and Kishan Dholakia",

booktitle = "Optical Trapping and Optical Micromanipulation XI",

address = "United States",

}

Toe, WJ, Piwonka, IO, Andres-Arroyo, A, Gao, Q, Tan, HH , Jagadish, C, Henry, B, Angstmann, C & Reece, PJ 2014, Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires. in GC Spalding & K Dholakia (eds), Optical Trapping and Optical Micromanipulation XI., 91641L, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9164, SPIE, Optical Trapping and Optical Micromanipulation XI, San Diego, United States, 17/08/14. https://doi.org/10.1117/12.2062673

Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires. / Toe, W. J.; Piwonka, I. O.; Andres-Arroyo, A. et al.
Optical Trapping and Optical Micromanipulation XI. ed. / Gabriel C. Spalding; Kishan Dholakia. SPIE, 2014. 91641L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9164).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires

AU - Toe, W. J.

AU - Piwonka, I. O.

AU - Andres-Arroyo, A.

AU - Gao, Q.

AU - Tan, H. H.

AU - Jagadish, C.

AU - Henry, B.

AU - Angstmann, C.

AU - Reece, P. J.

PY - 2014

Y1 - 2014

N2 - In the following study we investigate the dynamics of high aspect ratio nanowires held in a single gradient force optical trap in an overdamped environment. Power spectrum analysis performed on the stochastic trajectory of the optically trapped nanowires indicate that the motion of these nanowires shows characteristics of underdamped motion, where a broad resonance peak is present in the power spectrum of amplitude fluctuations under certain conditions. The resonance occurs when the nanowires are trapped at a height of 50 μm from the cover slip of the sample chamber. The emergence of a resonance peak in the power spectrum could be attributed to the non-conservative motion of nanowires being nonspherical, thus creating a bias towards cyclic motion as examined theoretically by Simpson and Hanna [12].

AB - In the following study we investigate the dynamics of high aspect ratio nanowires held in a single gradient force optical trap in an overdamped environment. Power spectrum analysis performed on the stochastic trajectory of the optically trapped nanowires indicate that the motion of these nanowires shows characteristics of underdamped motion, where a broad resonance peak is present in the power spectrum of amplitude fluctuations under certain conditions. The resonance occurs when the nanowires are trapped at a height of 50 μm from the cover slip of the sample chamber. The emergence of a resonance peak in the power spectrum could be attributed to the non-conservative motion of nanowires being nonspherical, thus creating a bias towards cyclic motion as examined theoretically by Simpson and Hanna [12].

KW - Optical trapping

KW - gradient force optical trap.

KW - nanowires

UR - http://www.scopus.com/inward/record.url?scp=84937858187&partnerID=8YFLogxK

U2 - 10.1117/12.2062673

DO - 10.1117/12.2062673

M3 - Conference contribution

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Optical Trapping and Optical Micromanipulation XI

A2 - Spalding, Gabriel C.

A2 - Dholakia, Kishan

PB - SPIE

T2 - Optical Trapping and Optical Micromanipulation XI

Y2 - 17 August 2014 through 21 August 2014

ER -

Anomalous dynamic behaviour of optically trapped high aspect ratio nanowires

Abstract

Publication series

Conference

Access to Document

Other files and links

Fingerprint

Cite this