Opto-mechanical force mapping of deep subwavelength plasmonic modes

John Kohoutek; Dibyendu Dey; Alireza Bonakdar; Ryan Gelfand; Alejandro Sklar; Omer Gokalp Memis; Hooman Mohseni

doi:10.1021/nl201780y

Opto-mechanical force mapping of deep subwavelength plasmonic modes

John Kohoutek, Dibyendu Dey, Alireza Bonakdar, Ryan Gelfand, Alejandro Sklar, Omer Gokalp Memis, Hooman Mohseni^*

^*Corresponding author for this work

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

We present spatial mapping of optical force generated near the hot spot of a metal-dielectric-metal bowtie nanoantenna at a wavelength of 1550 nm. Maxwell's stress tensor method has been used to simulate the optical force and it agrees well with the experimental data. This method could potentially produce field intensity and optical force mapping simultaneously with a high spatial resolution. Detailed mapping of the optical force is crucial for understanding and designing plasmonic-based optical trapping for emerging applications such as chip-scale biosensing and optomechanical switching.

Original language	English (US)
Pages (from-to)	3378-3382
Number of pages	5
Journal	Nano letters
Volume	11
Issue number	8
DOIs	https://doi.org/10.1021/nl201780y
State	Published - Aug 10 2011

Keywords

AFM
NSOM
Optical force
atomic force microscope
biosensing
surface plasmon resonance

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl201780y

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title = "Opto-mechanical force mapping of deep subwavelength plasmonic modes",

abstract = "We present spatial mapping of optical force generated near the hot spot of a metal-dielectric-metal bowtie nanoantenna at a wavelength of 1550 nm. Maxwell's stress tensor method has been used to simulate the optical force and it agrees well with the experimental data. This method could potentially produce field intensity and optical force mapping simultaneously with a high spatial resolution. Detailed mapping of the optical force is crucial for understanding and designing plasmonic-based optical trapping for emerging applications such as chip-scale biosensing and optomechanical switching.",

keywords = "AFM, NSOM, Optical force, atomic force microscope, biosensing, surface plasmon resonance",

author = "John Kohoutek and Dibyendu Dey and Alireza Bonakdar and Ryan Gelfand and Alejandro Sklar and Memis, {Omer Gokalp} and Hooman Mohseni",

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doi = "10.1021/nl201780y",

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AU - Kohoutek, John

AU - Dey, Dibyendu

AU - Bonakdar, Alireza

AU - Gelfand, Ryan

AU - Sklar, Alejandro

AU - Memis, Omer Gokalp

AU - Mohseni, Hooman

PY - 2011/8/10

Y1 - 2011/8/10

N2 - We present spatial mapping of optical force generated near the hot spot of a metal-dielectric-metal bowtie nanoantenna at a wavelength of 1550 nm. Maxwell's stress tensor method has been used to simulate the optical force and it agrees well with the experimental data. This method could potentially produce field intensity and optical force mapping simultaneously with a high spatial resolution. Detailed mapping of the optical force is crucial for understanding and designing plasmonic-based optical trapping for emerging applications such as chip-scale biosensing and optomechanical switching.

AB - We present spatial mapping of optical force generated near the hot spot of a metal-dielectric-metal bowtie nanoantenna at a wavelength of 1550 nm. Maxwell's stress tensor method has been used to simulate the optical force and it agrees well with the experimental data. This method could potentially produce field intensity and optical force mapping simultaneously with a high spatial resolution. Detailed mapping of the optical force is crucial for understanding and designing plasmonic-based optical trapping for emerging applications such as chip-scale biosensing and optomechanical switching.

KW - AFM

KW - NSOM

KW - Optical force

KW - atomic force microscope

KW - biosensing

KW - surface plasmon resonance

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JO - Nano Letters

JF - Nano Letters

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Opto-mechanical force mapping of deep subwavelength plasmonic modes

Abstract

Keywords

ASJC Scopus subject areas

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