Ultra-high resolution resonant C-shaped aperture nano-tip

Yao Te Cheng; Yuzuru Takashima; Yin Yuen; Paul C. Hansen; J. Brian Leen; Lambertus Hesselink

doi:10.1364/OE.19.005077

Ultra-high resolution resonant C-shaped aperture nano-tip

Yao Te Cheng, Yuzuru Takashima, Yin Yuen, Paul C. Hansen, J. Brian Leen, Lambertus Hesselink

Optical Sciences

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

7 Scopus citations

Abstract

We report a new optical near-field transducer comprised of a metallic nano-antenna extending from the ridge of a C-shaped metallic nano-aperture. Finite-difference time domain simulations predict that the C-aperture nano-tip (CAN-Tip) provides high intensity (650x), high optical resolution (∼λ/60), and background-free near-field illumination at a wavelength of 980 nm. The CAN-Tip has an aperture resonance and tip antenna resonance which may be tuned independently, so the structure can be made resonant at ultraviolet wavelengths without being unduly small. This near-field optical resolution of 16.1 nm has been experimentally confirmed by employing the CAN-Tip as an NSOM probe.

Original language	English (US)
Pages (from-to)	5077-5085
Number of pages	9
Journal	Optics Express
Volume	19
Issue number	6
DOIs	https://doi.org/10.1364/OE.19.005077
State	Published - Mar 14 2011

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "We report a new optical near-field transducer comprised of a metallic nano-antenna extending from the ridge of a C-shaped metallic nano-aperture. Finite-difference time domain simulations predict that the C-aperture nano-tip (CAN-Tip) provides high intensity (650x), high optical resolution (∼λ/60), and background-free near-field illumination at a wavelength of 980 nm. The CAN-Tip has an aperture resonance and tip antenna resonance which may be tuned independently, so the structure can be made resonant at ultraviolet wavelengths without being unduly small. This near-field optical resolution of 16.1 nm has been experimentally confirmed by employing the CAN-Tip as an NSOM probe.",

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AU - Cheng, Yao Te

AU - Takashima, Yuzuru

AU - Yuen, Yin

AU - Hansen, Paul C.

AU - Leen, J. Brian

AU - Hesselink, Lambertus

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Y1 - 2011/3/14

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AB - We report a new optical near-field transducer comprised of a metallic nano-antenna extending from the ridge of a C-shaped metallic nano-aperture. Finite-difference time domain simulations predict that the C-aperture nano-tip (CAN-Tip) provides high intensity (650x), high optical resolution (∼λ/60), and background-free near-field illumination at a wavelength of 980 nm. The CAN-Tip has an aperture resonance and tip antenna resonance which may be tuned independently, so the structure can be made resonant at ultraviolet wavelengths without being unduly small. This near-field optical resolution of 16.1 nm has been experimentally confirmed by employing the CAN-Tip as an NSOM probe.

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Ultra-high resolution resonant C-shaped aperture nano-tip

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