Microspherical nanoscopy: is it a reliable technique?

Malureanu, Radu; Takayama, Osamu; Shkondin, Evgeniy; Novitsky, Andrey; Lavrinenko, Andrei V.

doi:10.1364/osac.378355

Cited by 7 publications

(3 citation statements)

References 29 publications

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“…Nevertheless, other yet unknown factors are still needed to fully understand the process. [ 108,147,148 ]…”

Section: Superresolution Imaging Based On Sfc Methodsmentioning

confidence: 99%

“…Nevertheless, other yet unknown factors are still needed to fully understand the process. [108,147,148] Nanojet Explanation: Microsphere can focus light beyond the diffraction limit forming the so-called "nanojet" (Figure 4b). [80,[149][150][151][152] For a long time, the theoretical explanation of the superresolution ability of the microsphere lens was based on a notion that focusing and imaging are fundamentally related by the reciprocity principle.…”

Section: Theories Underlying the Superresolving Capability Of The Micmentioning

confidence: 99%

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Far‐Field Superresolution Imaging via Spatial Frequency Modulation

Tang

Liu

Zhong

et al. 2020

Laser & Photonics Reviews

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The diffraction limit substantially impedes the resolution of the conventional optical microscope. Under traditional illumination, the high-spatial-frequency light corresponding to the subwavelength information of objects is located in the near-field in the form of evanescent waves, and thus not detectable by conventional far-field objectives. Recent advances in nanomaterials and metamaterials provide new approaches to break this limitation by utilizing large-wavevector evanescent waves. Here, a comprehensive review of this emerging and fast-growing field is presented. The current superresolution imaging techniques based on evanescent-wave-assisted spatial frequency modulation, including hyperlens, microsphere lens, and evanescent field-illuminated spatial frequency shift microscopy, are illustrated. They are promising in investigating unobserved details and processes in fields such as medicine, biology, and material research. Some current challenges and future possibilities of these superresolution methods are also discussed.

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“…Nevertheless, other yet unknown factors are still needed to fully understand the process. [ 108,147,148 ]…”

Section: Superresolution Imaging Based On Sfc Methodsmentioning

confidence: 99%

Section: Theories Underlying the Superresolving Capability Of The Micmentioning

confidence: 99%

Far‐Field Superresolution Imaging via Spatial Frequency Modulation

Tang

Liu

Zhong

et al. 2020

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

“…Therefore, the microsphere must be placed within the proximity of the sample to interact with the evanescent waves that only exist within a distance of approximately 100 nm. The best achievable image resolution will be reduced without a proper control of the sphere-sample distance [9], [16], [29] and other unknown factors [30].…”

Section: Introductionmentioning

confidence: 99%

Determination of Microsphere-Lens Magnification Using Micro-Robotic Scanning Superlens Nanoscopy

Jia

Wang

et al. 2020

IEEE Open J. Nanotechnol.

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Microsphere-assisted nanoscopy has shown great potential in recent developments in the field of super-resolution imaging. The precise control of microspheres is leading to new discoveries that can help verify the theories behind the superresolution imaging mechanism. However, microsphere imaging involves multiple planes that have different magnification factors, which affect the determination of the overall resolution of the image. In this study, we present a flexible probe-lens assembly scheme that uses a barium titanate glass microsphere, as well as various scanning stages that can be used to freely investigate the sample surface and perform large-area super-resolution imaging (80 µm × 60 µm). The obtained resolution using this assembly under water immersion condition is 130 nm. By investigating the relationship between the magnification factors and the corresponding focus position of the different feature patterns, a remarkable difference in the focusing characteristics between arbitrary and periodic patterns was revealed. Results demonstrate the universality of the proposed method for the quantitative selection of the best focused plane and determination of the corresponding magnification factor and resolution of a microsphere virtual image for any feature pattern. The findings provide additional insights into the interpretation of arbitrary nanostructures through 3D optical imaging.

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Changing phases of fiber optic communication

Venkitesh

2021

J Opt

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Microspherical nanoscopy: is it a reliable technique?

Cited by 7 publications

References 29 publications

Far‐Field Superresolution Imaging via Spatial Frequency Modulation

Far‐Field Superresolution Imaging via Spatial Frequency Modulation

Determination of Microsphere-Lens Magnification Using Micro-Robotic Scanning Superlens Nanoscopy

Changing phases of fiber optic communication

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