Near infrared operation of femtosecond laser micro-machined in-fiber Mach Zehnder interferometers (uIMZI) for refractive index sensing

In this paper, a novel and cost-effective photonic platform based on silica–titania material is discussed. The silica–titania thin films were grown utilizing the sol–gel dip-coating method and characterized with the help of the prism-insertion technique. Afterwards, the mode sensitivity analysis of the silica–titania ridge waveguide is investigated via the finite element method. Silica–titania waveguide systems are highly attractive due to their ease of development, low fabrication cost, low propagation losses and operation in both visible and near-infrared wavelength ranges. Finally, a ring resonator (RR) sensor device was modelled for refractive index sensing applications, offering a sensitivity of 230 nm/RIU, a figure of merit (FOM) of 418.2 RIU−1, and Q-factor of 2247.5 at the improved geometric parameters. We believe that the abovementioned integrated photonics platform is highly suitable for high-performance and economically reasonable optical sensing devices.

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Quasi-periodic concave microlens array for liquid refractive index sensing fabricated by femtosecond laser assisted with chemical etching

Scientific Reports ◽

10.1038/s41598-018-20807-1 ◽

2018 ◽

Vol 8 (1) ◽

Cited By ~ 5

Author(s):

F. Zhang ◽

C. Wang ◽

K. Yin ◽

X. R. Dong ◽

Y. X. Song ◽

...

Keyword(s):

Refractive Index ◽

Femtosecond Laser ◽

Chemical Etching ◽

Microlens Array ◽

Refractive Index Sensing

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Trench-embedding fiber taper sensor fabricated by a femtosecond laser for gas refractive index sensing

Applied Optics ◽

10.1364/ao.53.001028 ◽

2014 ◽

Vol 53 (6) ◽

pp. 1028 ◽

Cited By ~ 9

Author(s):

Zhitao Cao ◽

Lan Jiang ◽

Sumei Wang ◽

Peng Wang ◽

Fei Zhang ◽

...

Keyword(s):

Refractive Index ◽

Femtosecond Laser ◽

Refractive Index Sensing ◽

Fiber Taper

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Sensitivity Pattern of Femtosecond Laser Micromachined and Plasma-Processed In-Fiber Mach-Zehnder Interferometers, as Applied to Small-Scale Refractive Index Sensing

IEEE Sensors Journal ◽

10.1109/jsen.2017.2695544 ◽

2017 ◽

Vol 17 (11) ◽

pp. 3316-3322 ◽

Cited By ~ 15

Author(s):

Monika Janik ◽

Anna K. Mysliwiec ◽

Marcin Koba ◽

Anna Celebanska ◽

Wojtek J. Bock ◽

...

Keyword(s):

Refractive Index ◽

Femtosecond Laser ◽

Small Scale ◽

Refractive Index Sensing ◽

Sensitivity Pattern

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Narrowband perfect metasurface absorber based on impedance matching

Photonics Letters of Poland ◽

10.4302/plp.v12i3.1041 ◽

2020 ◽

Vol 12 (3) ◽

pp. 88

Author(s):

Muhammad Ali Butt ◽

Nikolai Lvovich Kazansky

Keyword(s):

Refractive Index ◽

Optical Materials ◽

Near Infrared ◽

Impedance Matching ◽

Gold Layer ◽

Perfect Absorber ◽

Angle Of Incidence ◽

Refractive Index Sensing ◽

Sensing Applications ◽

Metal Insulator Metal

We presented a numerical investigation of a metamaterial narrowband perfect absorber conducted via a finite element method based on commercially available COMSOL software. The periodic array of silicon meta-atoms (MAs) are placed on 80 nm thick gold layer. The broadband light at normal incidence is blocked by the gold layer and silicon MAs are used to excite the surface plasmon by scattering light through it. Maximum absorption of 95.7 % is obtained at the resonance wavelength of 1137.5 nm due to the perfect impedance matching of the electric and magnetic dipoles. The absorption is insensitive to the wide-angle of incidence ranging from 0 to 80 degrees. We believe that the proposed metamaterial device can be utilized in solar photovoltaic and biochemical sensing applications. Full Text: PDF ReferencesY. Cheng, X.S. Mao, C. Wu, L. Wu, R.Z. Gong, "Infrared non-planar plasmonic perfect absorber for enhanced sensitive refractive index sensing", Optical Materials, 53, 195-200 (2016). CrossRef S. S. Mirshafieyan, D.A. Gregory, "Electrically tunable perfect light absorbers as color filters and modulators", Scientific Reports,8, 2635 (2018). CrossRef D.M. Nguyen, D. Lee, J. Rho, "Control of light absorbance using plasmonic grating based perfect absorber at visible and near-infrared wavelengths", Scientific Reports, 7, 2611 (2017). CrossRef Y. Sun, Y. Ling, T. Liu, L. Huang, "Electro-optical switch based on continuous metasurface embedded in Si substrate", AIP Advances, 5, 117221 (2015). CrossRef H. Chu, Q. Li, B. Liu, J. Luo, S. Sun, Z. H. Hang, L. Zhou, Y. Lai, "A hybrid invisibility cloak based on integration of transparent metasurfaces and zero-index materials", Light: Science & Applications, 7, 50 (2018). CrossRef S. K. Patel, S. Charola, J. Parmar, M. Ladumor, "Broadband metasurface solar absorber in the visible and near-infrared region", Materials Research Express, 6, 086213 (2019). CrossRef Q. Qian, S. Ti, C. Wang, "All-dielectric ultra-thin metasurface angular filter", Optics Letters, 44, 3984 (2019). CrossRef P. Yu et al., "Broadband Metamaterial Absorbers", Advanced Optical Materials, 7, 1800995 (2019). CrossRef Y. J. Kim et al., "Flexible ultrathin metamaterial absorber for wide frequency band, based on conductive fibers", Science and Technology of advanced materials, 19, 711-717 (2018). CrossRef N.L. Kazanskiy, S.N. Khonina, M.A. Butt, "Plasmonic sensors based on Metal-insulator-metal waveguides for refractive index sensing applications: A brief review", Physica E, 117, 113798 (2020). CrossRef H. E. Nejad, A. Mir, A. Farmani, "Supersensitive and Tunable Nano-Biosensor for Cancer Detection", IEEE Sensors Journal, 19, 4874-4881 (2019). CrossRef

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Graphene oxide-polymethylmethacrylate polymer waveguide device based on near infrared fingerprint spectrum for refractive index sensing

Transactions of the Institute of Measurement and Control ◽

10.1177/0142331217707364 ◽

2017 ◽

Vol 40 (8) ◽

pp. 2607-2610

Author(s):

Botao Wang ◽

Qi Wang ◽

Lingxin Kong ◽

Riqing Lv

Keyword(s):

Refractive Index ◽

Graphene Oxide ◽

Near Infrared ◽

High Sensitivity ◽

Single Mode ◽

Glycerol Solution ◽

Refractive Index Measurement ◽

Polymer Waveguide ◽

Refractive Index Sensing ◽

High Measurement

A graphene oxide-polymethylmethacrylate (GO-PMMA) microfiber sensor is proposed and experimentally demonstrated in this paper, which is based on the absorption principle of near infrared spectra for external refractive index sensing. The sensor was fabricated by splicing a section of 1 mm GO-PMMA between two tapered single mode fibers. The hydrophilic groups of graphene oxide can be used to measure the proportion of water in glycerol solution, and achieve the goal of refractive index measurement indirectly. Experiments were conducted for moisture content of 4.3%~45% (refractive index range from 1.3400 to 1.4054) in glycerin solution. Different concentrations of glycerol solution have different intensities of absorption peaks near 1530 nm wavelength. The absorption peak power near 1530 nm wavelength responses to the external refractive index was experimentally studied. The results show that the sensor possesses a high sensitivity of 167.39 dB/RIU in the refractive index range of 1.34~1.41 and has a good linearity response to external refractive index. The proposed sensor is attractive owing to its high measurement speed, accurate, no pollution and lower cost, and is suited for long-term online real-time measurement.

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