Reflection based extraordinary optical transmission fiber optic probe for refractive index sensing

Lan, Xinwei; Cheng, Baokai; Yang, Qingbo; Huang, Jie; Wang, Hanzheng; Ma, Yinfa; Shi, Honglan; Xiao, Hai

doi:10.1016/j.snb.2013.11.046

Cited by 23 publications

(13 citation statements)

References 21 publications

(19 reference statements)

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“…RI sensors have been patterned either on the sidewall of optical fiber [18], fiber tip [19][20][21][22][23][24][25][26][27] or both [28 29] for transmission/reflection measurements. For sensors on the tip of the optical fiber, reflection-based measurements only require one port into the sensing media, and the interrogation area has been shown to approach the area of the fiber core (as small as 1/2500 mm 2 for single mode fiber) [21]. Focused Ion Beam (FIB) and Electron Beam Lithography (EBL) are the most common methods to pattern RI sensors on the facet of optical fiber [30].…”

Section: Introductionmentioning

confidence: 99%

“…Focused Ion Beam (FIB) and Electron Beam Lithography (EBL) are the most common methods to pattern RI sensors on the facet of optical fiber [30]. For example, Lan et al [21] demonstrated FIB milling an square lattice of subwavelength holes on the tip of optical fiber to achieve a sensitivity of 573 nm/RIU and Lin et al [23] patterned nanodots using EBL to produce sensors with 196 nm/RIU. The cost of patterning is a significant obstacle to the practical use of optical fiber-based LSPR sensors.…”

Section: Introductionmentioning

confidence: 99%

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Microsphere Photolithography Patterned Nanohole Array on an Optical Fiber

et al. 2021

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Microsphere Photolithography (MPL) is a nanopatterning technique that utilizes a selfassembled monolayer of microspheres as an optical element to focus incident radiation inside a layer of photoresist. A Mie resonance in the microspheres produces a sub-diffraction limited photonic-jet on the opposite side of each microsphere from the illumination. When combined with pattern transfer techniques such as etching/lift-off, MPL provides a versatile, low-cost fabrication method for producing hexagonal close-packed metasurfaces. This paper investigates the MPL process for creating refractive index (RI) sensors on the cleaved tips of optical fiber. The resonant wavelength of metal elements on the surface is dependent on the local dielectric environment and allows the refractive index of an analyte to be resolved spectrometricly. A numerical study of hole arrays defined in metal films shows that the waveguide mode provides good sensitivity to the analyte refractive index. This can be readily tuned by adjusting the MPL exposure and the simulation results guide the fabrication of a defect tolerant refractive index sensor on the tip of a fiber tip with a sensitivity of 613 nm/RIU. The conformal nature of the microsphere monolayer simplifies the fabrication process and provides a viable alternative to direct-write techniques such as Focused Ion Beam (FIB) milling.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Microsphere Photolithography Patterned Nanohole Array on an Optical Fiber

et al. 2021

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“…The exploitation of surface plasmon resonances and localized surface plasmon resonances (LSPRs) within subwavelength apertures and nanoparticles/structures for the detection of changes in refractive index (RI) (typically seen as wavelength shifts of several hundred nanometers per refractive index unit (RIU)) has been previously reported in the literature . However, the majority of these studies have used devices fabricated from gold with resonances located in the red and infrared regions of the electromagnetic spectrum.…”

Section: Introductionmentioning

confidence: 99%

Optical Chemical Barcoding Based on Polarization Controlled Plasmonic Nanopixels

Langley

Balaur

Hwang

et al. 2017

Adv Funct Materials

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Plasmonic devices offer the possibility of passively detecting changes in local chemistry that opens up a wide range of applications from molecular sensing to monitoring water quality. Conventional plasmonics have previously shown great promise as nanoscale chemical sensors through detection of small variations in the local refractive index (RI). The motivation behind using plasmonics for these applications includes the fact that detection is entirely passive and the devices themselves can be readily miniaturized. Previously, a lack of any control over the output of these devices, has fundamentally limited their application to chemicals which produce clearly identifiable resonances within the range of detection. Here it is demonstrated that microfluidic devices, incorporating polarization-controlled plasmonic nanopixels, allow the device response to be tuned to the particular analyte of interest, anywhere within the visible spectrum. This dramatically increases the effective dynamic range and allows local variations in RI to be perceived directly as color changes by the human eye. Active control over the output of the device also enables clear differentiation between a number of different analytes, paving the way for plasmonics to be used for a wide range of real-world chemical sensing applications.

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“…Over the years, many approaches have been explored including (but not limited to) interferometers, [3][4][5] fiber gratings, 6,7 long period fiber gratings, [8][9][10] surface plasmonic resonance devices, 11 multimode interference devices, 12 attenuated total internal reflectance sensors, 13,14 extraordinary optical transmission devices, 15 photonic crystal fibers, 16 and whispering gallery mode (WGM) optical microresonators 17 and microlasers. 18 These fiber optic devices have a small size and can be used to measure the RI of a sample with a small volume.…”

Section: Introductionmentioning

confidence: 99%

Integrated microsphere whispering gallery mode probe for highly sensitive refractive index measurement

et al. 2016

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Integrated microsphere whispering gallery mode probe for highly sensitive refractive index measurement," Opt. Eng. 55(6), 067105 (2016), Abstract. We report an integrated whispering gallery mode microresonator-based sensor probe for refractive index sensing. The probe was made by sealing a borosilicate glass microsphere into a thin-wall glass capillary pigtailed with a multimode optical fiber. The intensities of the resonant peaks were found decreasing exponentially (linearly in a log scale) with the increasing refractive index of the medium surrounding the capillary. The sensing capability of the integrated probe was tested using sucrose solutions of different concentrations and the resolution was estimated to be about 2.5 × 10 −5 in the index range of 1.3458 to 1.3847. The integrated sensor probe may prove useful in many chemical and biological sensing applications where highly sensitive refractive index monitoring is needed.

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Reflection based extraordinary optical transmission fiber optic probe for refractive index sensing

Cited by 23 publications

References 21 publications

Microsphere Photolithography Patterned Nanohole Array on an Optical Fiber

Microsphere Photolithography Patterned Nanohole Array on an Optical Fiber

Optical Chemical Barcoding Based on Polarization Controlled Plasmonic Nanopixels

Integrated microsphere whispering gallery mode probe for highly sensitive refractive index measurement

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