Experimental far-field imaging properties of high refractive index microsphere lens

Guo, Minglei; Ye, Yong-Hong; Hou, Jinglei; Du, Bintao

doi:10.1364/prj.3.000339

Cited by 18 publications

(11 citation statements)

References 26 publications

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“…From these publications one can see that, in the case of relatively small magnifications 1.5 3 M = − , as those reported e.g. in [95,109,120,121,123,124,126,130,134,142], the solid immersion lens and the spherical particle produce very similar effects. On the contrary, in the range of magnification values 3 6 M = − the difference between a sphere and a SIL becomes pronounced, as reported e.g.…”

Section: Nanoscopy With Microscopic Dielectric Particlessupporting

confidence: 68%

“…On the contrary, in the range of magnification values 3 6 M = − the difference between a sphere and a SIL becomes pronounced, as reported e.g. in [75,94,96,115,117,122,138,149,155,161]. This latter range of magnifications has been, probably, the most investigated in publications.…”

Section: Nanoscopy With Microscopic Dielectric Particlesmentioning

confidence: 87%

“…The majority of the studies devoted to photonic nanojet structures has been done for single and chain of spheres [6][7][8][9][10][11][12][13][14][15][16][17]22,24, and cylinders [21,23,25,33,[53][54][55][56][57][58][59]. In general, the behavior of spheres and cylinders are quite similar and, thus, it makes sense to discuss the results for both shapes in parallel.…”

Section: Basic Properties Of Photonic Nanojetmentioning

confidence: 99%

See 2 more Smart Citations

Refractive index less than two: photonic nanojets yesterday, today and tomorrow [Invited]

Luk’yanchuk

Paniagua‐Domínguez

Minin

et al. 2017

Opt. Mater. Express

318

242

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Materials with relatively small refractive indices (2 n <), such as glass, quartz, polymers, some ceramics, etc., are the basic materials in most optical components (lenses, optical fibres, etc.). In this review, we present some of the phenomena and possible applications arising from the interaction of light with particles with a refractive index less than 2. The vast majority of the physics involved can be described with the help of the exact, analytical solution of Maxwell's equations for spherical particles (so called Mie theory). We also discuss some other particle geometries (spheroidal, cubic, etc.) and different particle configurations (isolated or interacting) and draw an overview of the possible applications of such materials, in connection with field enhancement and super resolution nanoscopy.

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Section: Nanoscopy With Microscopic Dielectric Particlessupporting

confidence: 68%

Section: Nanoscopy With Microscopic Dielectric Particlesmentioning

confidence: 87%

Section: Basic Properties Of Photonic Nanojetmentioning

confidence: 99%

See 1 more Smart Citation

Refractive index less than two: photonic nanojets yesterday, today and tomorrow [Invited]

Luk’yanchuk

Paniagua‐Domínguez

Minin

et al. 2017

Opt. Mater. Express

318

242

View full text Add to dashboard Cite

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“…1 n was taken approximately as 1 (air) and 2 n as around 1.5. However, it was emphasized in many works that the resolution can be improved further by using microspheres with high refraction index (nearly 2) [60][61][62][63][64]. These results can approximately be related to Eq.…”

Section: Conversion Of Evanescent Waves Into Propagating Wavesmentioning

confidence: 93%

Super-Resolution of Nano-Materials and Quantum Effects Obtained by Microspheres

Ben‐Aryeh¹

2019

rpm

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In this article, microsphere super-resolution, which are beyond the Abbe classical limit, are described. The conversion of evanescent waves into propagating waves is analyzed by using the geometry of the microsphere. In microsphere experiments, a nanojet is produced near the focal plane, where its width is smaller than the Abbe limit and remains unchanged in the axial direction for certain wavelengths. The interference between the evanescent waves being converted into propagating waves and the nanojet leads to an increase in light intensity and confinement effects in the focal plane. However, the nanojet is not the main source of the super-resolution as the fine structures are available mainly in the evanescent waves. Quantum effects for super-resolution are obtained from special properties of the evanescent waves leading to an uncertainty relation. Several methods to increase the phase contrast in microsphere experiments have been described, which can be used for phase object measurements. Plasmon interaction can be used for measuring fine structures of special systems and for converting evanescent waves into propagating waves but they might also change the optical image in a way which is difficult to analyze. Therefore, most microsphere high-resolution experiments were conducted without plasmon interactions.

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“…In the past decades, a series of superresolution techniques exploiting SF modulation of evanescent waves have been reported, including hyperlens [70][71][72][73][74][75][76][77] and microsphere lens. [78][79][80][81][82][83][84][85][86][87][88][89][90][91][92][93][94][95][96] These methods enable the one-shot collection of evanescent waves via spatial frequency compression (SFC) method to transform large-wavevector evanescent waves into propagating light. Besides the SFC method, superresolution microscopy also benefits from evanescent wave illumination combined with spatial frequency shift (SFS) method.…”

Section: Introductionmentioning

confidence: 99%

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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Experimental far-field imaging properties of high refractive index microsphere lens

Cited by 18 publications

References 26 publications

Refractive index less than two: photonic nanojets yesterday, today and tomorrow [Invited]

Refractive index less than two: photonic nanojets yesterday, today and tomorrow [Invited]

Super-Resolution of Nano-Materials and Quantum Effects Obtained by Microspheres

Far‐Field Superresolution Imaging via Spatial Frequency Modulation

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