A high throughput supra-wavelength plasmonic bull’s eye photon sorter spatially and spectrally multiplexed on silica optical fiber facet

Arabi, Hesam Edin; Joe, Hang-Eun; Nazari, Tavakol; Min, Byung Kwon; Oh, Kyunghwan

doi:10.1364/oe.21.028083

Cited by 15 publications

(8 citation statements)

References 22 publications

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“…As such, it was referred to as a bull’s eye structure. A bull’s eye structure can utilize the light from the entire azimuth under a fluorescence microscope when coupling with surface plasmons [ 27 , 28 , 29 , 30 , 31 , 32 ]. To clearly detect the dual-color fluorescence even for membrane proteins with the small expression rate, the appropriate grating pitch of a bull’s eye-plasmonic chip was examined.…”

Section: Introductionmentioning

confidence: 99%

Dual-Color Fluorescence Imaging of EpCAM and EGFR in Breast Cancer Cells with a Bull’s Eye-Type Plasmonic Chip

Izumi

Yamamura

Hayashi

et al. 2017

Sensors

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Surface plasmon field-enhanced fluorescence microscopic observation of a live breast cancer cell was performed with a plasmonic chip. Two cell lines, MDA-MB-231 and Michigan Cancer Foundation-7 (MCF-7), were selected as breast cancer cells, with two kinds of membrane protein, epithelial cell adhesion molecule (EpCAM) and epidermal growth factor receptor (EGFR), observed in both cells. The membrane proteins are surface markers used to differentiate and classify breast cancer cells. EGFR and EpCAM were detected with Alexa Fluor® 488-labeled anti-EGFR antibody (488-EGFR) and allophycocyanin (APC)-labeled anti-EpCAM antibody (APC-EpCAM), respectively. In MDA-MB231 cells, three-fold plus or minus one and seven-fold plus or minus two brighter fluorescence of 488-EGFR were observed on the 480-nm pitch and the 400-nm pitch compared with that on a glass slide. Results show the 400-nm pitch is useful. Dual-color fluorescence of 488-EGFR and APC-EpCAM in MDA-MB231 was clearly observed with seven-fold plus or minus two and nine-fold plus or minus three, respectively, on the 400-nm pitch pattern of a plasmonic chip. Therefore, the 400-nm pitch contributed to the dual-color fluorescence enhancement for these wavelengths. An optimal grating pitch of a plasmonic chip improved a fluorescence image of membrane proteins with the help of the surface plasmon-enhanced field.

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Section: Introductionmentioning

confidence: 99%

Dual-Color Fluorescence Imaging of EpCAM and EGFR in Breast Cancer Cells with a Bull’s Eye-Type Plasmonic Chip

Izumi

Yamamura

Hayashi

et al. 2017

Sensors

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“…In addition to the nanostructures mentioned above, metallic nanogratings on optical fiber endfaces exhibit unique optical properties due to the surface plasmon polaritons that result from the light confined in optical fibers interacting with the subwavelength nanograting. These nanogratings can be utilized as optical filters, 258,259 amplifiers, 258 polarizers, 85 beam splitters, 107 and metallic Fresnel zone plates, 260 as well as in applications requiring waveguide coupling, 106 Bessel beam generation, 74 wavelength-division-multiplexing signal monitoring, 81 and wavelength-dependent off-axis directional beaming. 261 In addition to that, meta-fiber tips are also widely demonstrated for beam shaping and operation.…”

Section: D Functional Surfacesmentioning

confidence: 99%

Multifunctional integration on optical fiber tips: challenges and opportunities

Xiong

2020

Adv. Photon.

133

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The flat endface of an optical fiber tip is an emerging light-coupled microscopic platform that combines fiber optics with planar micro-and nanotechnologies. Since different materials and structures are integrated onto the endfaces, optical fiber tip devices have miniature sizes, diverse integrated functions, and low insertion losses, making them suitable for all-optical networks. In recent decades, the increasing demand for multifunctional optical fibers has created opportunities to develop various structures on fiber tips. Meanwhile, the unconventional shape of optical fibers presents challenges involving the adaptation of standard planar micro-and nanostructure preparation strategies for fiber tips. In this context, researchers are committed to exploring and optimizing fiber tip manufacturing techniques, thereby paving the way for future integrated all-fiber devices with multifunctional applications. First, we present a broad overview of current fabrication technologies, classified as "top-down," "bottom-up," and "material transfer" methods, for patterning optical fiber tips. Next, we review typical structures integrated on fiber tips and their known and potential applications, categorized with respect to functional structure configurations, including "optical functionalization" and "electrical integration." Finally, we discuss the prospects for future opportunities involving multifunctional integrated fiber tips.

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“…on the optical fiber facets to alter the optical properties and to extend the functionalities of the fibers, as elements of these plasmonic nanostructures can interact directly with well-guided modes of the optical fiber. Compact optical fiber components such as diffraction grating [8,9], amplifier [10], nanotrimmer [11], optical tweezer [12], and plasmonic sensors [13][14][15] have been realized with periodical nanostructures on facets of the optical fibers. A method to apply a metallic structure to a polymeric membrane on the facet of a hollow core optical fiber has been functionalized as a nanoplasmonic filter [16].…”

Section: Introductionmentioning

confidence: 99%

Photonic crystal fiber metalens

Yang

Ghimire

Wu³

et al. 2019

Nanophotonics

100

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Conventional optical fiber has excellent performance in guiding light, which has been widely employed for long-distance optical communication. Although the optical fiber is efficient for transmitting light, its functionality is limited by the dielectric properties of the core’s and cladding’s materials (e.g. Ge-doped-silica and silica glasses). The spot size of the transmitted light is diverging and restricted by the diffraction limit of the dielectric core, and the numerical aperture is determined by the refractive index of the fiber materials. However, the novel technology of metasurfaces is opening the door to a variety of optical fiber innovations. Here, we report an ultrathin optical metalens directly patterned on the facet of a photonic crystal optical fiber that enables light focusing in the telecommunication regime. In-fiber metalenses with focal lengths of 28 μm and 40 μm at a wavelength of 1550 nm are demonstrated with maximum enhanced optical intensity as large as 234%. The ultrathin optical fiber metalens may find novel applications in optical imaging, sensing, and fiber laser designs.

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A high throughput supra-wavelength plasmonic bull’s eye photon sorter spatially and spectrally multiplexed on silica optical fiber facet

Cited by 15 publications

References 22 publications

Dual-Color Fluorescence Imaging of EpCAM and EGFR in Breast Cancer Cells with a Bull’s Eye-Type Plasmonic Chip

Dual-Color Fluorescence Imaging of EpCAM and EGFR in Breast Cancer Cells with a Bull’s Eye-Type Plasmonic Chip

Multifunctional integration on optical fiber tips: challenges and opportunities

Photonic crystal fiber metalens

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