Localized plasmon assisted structured illumination microscopy for wide-field high-speed dispersion-independent super resolution imaging

Ponsetto, Joseph Louis; Wei, Feifei; Liu, Zhaowei

doi:10.1039/c4nr00443d

Cited by 68 publications

(53 citation statements)

References 41 publications

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“…This means that the imaging resolution has been improved 13.6 fold by introducing the MSS structure in PSIM. This result is better than SIM 42 and previous reported PSIM 15, 16, 32, 43 . It should be noted that two-dimensional enhancement in imaging resolution of the PE can also be obtained by using the SPs pattern generated in MSS to illuminate the PE in both x and y directions.…”

Section: Resultscontrasting

confidence: 74%

Numerical analysis of wide-field optical imaging with a sub-20 nm resolution based on a meta-sandwich structure

Cao

Wang

Yang

et al. 2017

Sci Rep

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Biological research requires wide-field optical imaging techniques with resolution down to the nanometer scale to study the biological process in a sub-cell or single molecular level. To meet this requirement, wide-field structured illumination method (WFSIM) has been extensively studied. The resolution of WFSIM is determined by the period of the optical interference pattern. However, in traditional WFSIM this period is diffraction limited so that pattern having periodicity smaller than 100 nm cannot be generated and as a result achieving an imaging resolution better than 50 nm is a great challenge. Here, we demonstrate a wide-field optical nanoimaging method based on a meta-sandwich structure (MSS) model. It is found that this structure can support standing wave surface plasmons interference pattern with a period of only 31 nm for 532 nm wavelength incident light. Furthermore, the potential application of the MSS for wide-field super-resolution imaging is discussed and the simulation results show an imaging resolution of sub-20 nm can be achieved. The demonstrated method paves a new route for the improvement of the wide field optical nanoimaging, which can be applied by biological researchers to study biological process conducted in cell membrane, such as mass transportation and others.

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Section: Resultscontrasting

confidence: 74%

Numerical analysis of wide-field optical imaging with a sub-20 nm resolution based on a meta-sandwich structure

Cao

Wang

Yang

et al. 2017

Sci Rep

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“…Plasmon-assisted excitation in conjunction with structured illumination has also been shown to provide improved lateral resolution [103,104].…”

Section: Super-resolutionmentioning

confidence: 98%

Structured illumination microscopy

2015

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Illumination plays an important role in optical microscopy. Köhler illumination, introduced more than a century ago, has been the backbone of optical microscopes. The last few decades have seen the evolution of new illumination techniques meant to improve certain imaging capabilities of the microscope. Most of them are, however, not amenable for wide-field observation and hence have restricted use in microscopy applications such as cell biology and microscale profile measurements. The method of structured illumination microscopy has been developed as a wide-field technique for achieving higher performance. Additionally, it is also compatible with existing microscopes. This method consists of modifying the illumination by superposing a well-defined pattern on either the sample itself or its image. Computational techniques are applied on the resultant images to remove the effect of the structure and to obtain the desired performance enhancement. This method has evolved over the last two decades and has emerged as a key illumination technique for optical sectioning, super-resolution imaging, surface profiling, and quantitative phase imaging of microscale objects in cell biology and engineering. In this review, we describe various structured illumination methods in optical microscopy and explain the principles and technologies involved therein.

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“…Plasmonic structured illumination microscopy (pSIM), which combines the advantages of SPP with SIM, can improve the image resolution up to three to four times compared to the diffraction limit, without the nonlinear effect of fluorescent molecules. In addition, pSIM also has the ability to suppress the background noise and enhance the signal‐to‐noise ratio, which is of great value in biomedical imaging applications. In previous studies, using slits or grating structures, the phase of SPP could be tuned by changing the excitation angle or incident‐beam phase.…”

Section: Introductionmentioning

confidence: 99%

Polarization‐to‐Phase Coupling at a Structured Surface for Plasmonic Structured Illumination Microscopy

Zhang

Xin

et al. 2018

Laser & Photonics Reviews

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Polarization–phase interaction on the nanoscale is the cause of many unique effects that are absent or weak in traditional optics. These effects enable various applications in physics, nano‐optics, and material science. Here, by making use of a properly designed metasurface, polarization‐to‐phase coupling in a structured surface is investigated. The wavefront of a surface plasmon polariton (SPP), emitted from the metasurface, can be tuned continuously and linearly by changing the incident polarization along the longitudinal line at the Poincaré sphere. This type of phase modulation with polarization enables dynamic control of the wavefront. This is very different from other methods that achieve phase modulation through nano‐structures, which offer little room for tuning after the structure has been completed. As a demonstration of application, a plasmonic structured illumination microscope is achieved, where the near‐field standing‐wave of the SPP is controlled dynamically through the incident polarization. This improves both reliability and stability substantially. Metasurfaces are powerful tools to modulate the wavefront of an electromagnetic field. In combination with structured illumination microscopy (SIM) (the “Meta‐SIM”), this allows more degrees of freedom and should accelerate the progress of SIM technology.

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Localized plasmon assisted structured illumination microscopy for wide-field high-speed dispersion-independent super resolution imaging

Cited by 68 publications

References 41 publications

Numerical analysis of wide-field optical imaging with a sub-20 nm resolution based on a meta-sandwich structure

Numerical analysis of wide-field optical imaging with a sub-20 nm resolution based on a meta-sandwich structure

Structured illumination microscopy

Polarization‐to‐Phase Coupling at a Structured Surface for Plasmonic Structured Illumination Microscopy

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