Theoretical Analyses on the Resolution of Collection Mode Scanning Near-Field Optical Microscopy

Alvarez, Lydia; Xiao, Mufei

doi:10.1007/s10043-006-0254-8

OPT REV

2006

DOI: 10.1007/s10043-006-0254-8

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Theoretical Analyses on the Resolution of Collection Mode Scanning Near-Field Optical Microscopy

Lydia Alvarez¹,

Mufei Xiao²

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2014

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“…The pinhole channel size becomes smaller and smaller as the thin film thickness position z increases, and its apex size is obviously smaller than its entrance. Here, the pinhole channel is similar to the tip of an optical probe, which is used in scanning near-field optical microscopy [21,22].…”

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Strong nonlinear saturation absorption-induced optical pinhole channel and super-resolution effects: a multi-layer system model

Wei

Hui

2014

Opt. Lett.

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This work focuses on the strong nonlinear saturation absorption (NSA)-induced optical super-resolution effect. A multi-layer system model is proposed to understand the strong NSA-induced formation of an optical pinhole channel and the generation of a super-resolution spot. Taking a Sb2Te3 thin film as an example, numerical simulations were conducted. The results illustrate that an optical pinhole channel is clearly formed by the NSA characteristics. This pinhole channel is similar to a near-field light probe. Light travels through the pinhole channel, and a super-resolution spot is generated at its apex. The near-field spot scanning experimental results show that the reduction ratio of the spot is approximately 44.8%, which is basically consistent with the numerical simulation result of 43%. This work is helpful for understanding optical nonlinear super-resolution effects and developing nanolithography, nanodata storage, high-resolution optical imaging technologies with nonlinear thin films.

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confidence: 99%

Strong nonlinear saturation absorption-induced optical pinhole channel and super-resolution effects: a multi-layer system model

Wei

Hui

2014

Opt. Lett.

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Theoretical Analyses on the Resolution of Collection Mode Scanning Near-Field Optical Microscopy

Cited by 1 publication

References 15 publications

Strong nonlinear saturation absorption-induced optical pinhole channel and super-resolution effects: a multi-layer system model

Strong nonlinear saturation absorption-induced optical pinhole channel and super-resolution effects: a multi-layer system model

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