Ultrahigh Sensitivity of a Plasmonic Pressure Sensor with a Compact Size

This study proposes a compact plasmonic metal-insulator-metal pressure sensor comprising a bus waveguide and a resonator, including one horizontal slot and several stubs. We calculate the transmittance spectrum and the electromagnetic field distribution using the finite element method. When the resonator’s top layer undergoes pressure, the resonance wavelength redshifts with increasing deformation, and their relation is nearly linear. The designed pressure sensor possesses the merits of ultrahigh sensitivity, multiple modes, and a simple structure. The maximum sensitivity and resonance wavelength shift can achieve 592.44 nm/MPa and 364 nm, respectively, which are the highest values to our knowledge. The obtained sensitivity shows 23.32 times compared to the highest one reported in the literature. The modeled design paves a promising path for applications in the nanophotonic field.

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An optical pressure sensor based on π-shaped surface plasmon polariton resonator

Modern Physics Letters B ◽

10.1142/s0217984916502845 ◽

2016 ◽

Vol 30 (21) ◽

pp. 1650284 ◽

Cited By ~ 6

Author(s):

Gaoyan Duan ◽

Peilin Lang ◽

Lulu Wang ◽

Li Yu ◽

Jinghua Xiao

Keyword(s):

Surface Plasmon ◽

Pressure Sensor ◽

Surface Plasmon Polariton ◽

High Sensitivity ◽

Wavelength Shift ◽

The Finite Element Method ◽

Metal Insulator Metal ◽

Potential Applications ◽

Plasmon Polariton ◽

Optical Pressure

We propose a metal–insulator–metal (MIM) structure which consists of a [Formula: see text]-shaped resonator and a surface plasmon polariton (SPP) waveguide. The finite element method (FEM) is employed in the simulation. The results show that this structure forms an optical pressure sensor. The transmission spectra have a redshift with increasing pressure, and the relation between the wavelength shift and the pressure is linear. The nanoscale pressure sensor shows a high sensitivity and may have potential applications in biological and biomedical engineering.

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Far-infrared bands in plasmonic metal-insulator-metal absorbers optimized for long-wave infrared

MRS Advances ◽

10.1557/adv.2019.53 ◽

2019 ◽

Vol 4 (11-12) ◽

pp. 667-674 ◽

Cited By ~ 2

Author(s):

Rachel N. Evans ◽

Seth R. Calhoun ◽

Jonathan R. Brescia ◽

Justin W. Cleary ◽

Evan M. Smith ◽

...

Keyword(s):

Ground Plane ◽

Wavelength Region ◽

Wave Model ◽

Far Infrared ◽

Resonance Wavelength ◽

Surface Structures ◽

Metal Insulator ◽

Long Wave ◽

Metal Insulator Metal ◽

Long Wave Infrared

ABSTRACTMetal–insulator–metal (MIM) resonant absorbers comprise a conducting ground plane, a dielectric of thickness t, and thin separated metal top-surface structures of dimension l. The fundamental resonance wavelength is predicted by an analytic standing-wave model based on t, l, and the dielectric refractive index spectrum. For the dielectrics SiO2, AlN, and TiO2, values for l of a few microns give fundamental resonances in the 8-12 μm long-wave infrared (LWIR) wavelength region. Agreement with theory is better for t/l exceeding 0.1. Harmonics at shorter wavelengths were already known, but we show that there are additional resonances in the far-infrared 20 - 50 μm wavelength range in MIM structures designed to have LWIR fundamental resonances. These new resonances are consistent with the model if far-IR dispersion features in the index spectrum are considered. LWIR fundamental absorptions are experimentally shown to be optimized for a ratio t/l of 0.1 to 0.3 for SiO2- and AlN-based MIM absorbers, respectively, with TiO2-based MIM optimized at an intermediate ratio.

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Gate-tunable metafilm absorber based on indium silicon oxide

Nanophotonics ◽

10.1515/nanoph-2019-0190 ◽

2019 ◽

Vol 8 (10) ◽

pp. 1803-1810 ◽

Cited By ~ 2

Author(s):

Hongwei Zhao ◽

Ran Zhang ◽

Hamid T. Chorsi ◽

Wesley A. Britton ◽

Yuyao Chen ◽

...

Keyword(s):

Silicon Oxide ◽

Resonance Wavelength ◽

Multilayer Structures ◽

Metal Insulator ◽

Maximum Change ◽

Metal Insulator Metal ◽

Resonator Arrays

AbstractIn this work, reconfigurable metafilm absorbers based on indium silicon oxide (ISO) were investigated. The metafilm absorbers consist of nanoscale metallic resonator arrays on metal-insulator-metal (MIM) multilayer structures. The ISO was used as an active tunable layer embedded in the MIM cavities. The tunable metafilm absorbers with ISO were then fabricated and characterized. A maximum change in the reflectance of 57% and up to 620 nm shift in the resonance wavelength were measured.

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A Nanosensor Based on a Metal-Insulator-Metal Bus Waveguide with a Stub Coupled with a Racetrack Ring Resonator

Micromachines ◽

10.3390/mi12050495 ◽

2021 ◽

Vol 12 (5) ◽

pp. 495

Author(s):

Haoran Shi ◽

Shubin Yan ◽

Xiaoyu Yang ◽

Xiushan Wu ◽

Wenchang Wu ◽

...

Keyword(s):

Figure Of Merit ◽

Ring Resonator ◽

Electromagnetically Induced Transparency ◽

Spectral Characteristics ◽

The Finite Element Method ◽

Metal Insulator ◽

Sensing Applications ◽

Metal Insulator Metal ◽

Induced Transparency ◽

Sensing Performance

A nanostructure comprising the metal-insulator-metal (MIM) bus waveguide with a stub coupled with a racetrack ring resonator is designed. The spectral characteristics of the proposed structure are analyzed via the finite element method (FEM). The results show that there is a sharp Fano resonance profile and electromagnetically induced transparency (EIT)-like effect, which are excited by a coupling between the MIM bus waveguide with a stub and the racetrack ring resonator. The normalized HZ field is affected by the displacement of the ring from the stub x greatly. The influence of the geometric parameters of the sensor design on the sensing performance is discussed. The sensitivity of the proposed structure can reach 1774 nm/RIU with a figure of merit of 61. The proposed structure has potential in nanophotonic sensing applications.

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Metal-insulator-metal waveguide-based optical pressure sensor embedded with arrays of silver nanorods

Optics Express ◽

10.1364/oe.439974 ◽

2021 ◽

Vol 29 (20) ◽

pp. 32365

Author(s):

Infiter Tathfif ◽

Ahmad Azuad Yaseer ◽

Kazi Sharmeen Rashid ◽

Rakibul Hasan Sagor

Keyword(s):

Pressure Sensor ◽

Metal Insulator ◽

Silver Nanorods ◽

Metal Waveguide ◽

Metal Insulator Metal ◽

Optical Pressure

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High Sensitive Optical Pressure Sensor Using Nano-Scale Plasmonic Resonator and Metal-Insulator-Metal Waveguides

Journal of Nanoelectronics and Optoelectronics ◽

10.1166/jno.2018.2375 ◽

2018 ◽

Vol 13 (10) ◽

pp. 1449-1453 ◽

Cited By ~ 1

Author(s):

Pardis Palizvan ◽

Saeed Olyaee ◽

Mahmood Seifouri

Keyword(s):

Pressure Sensor ◽

Fdtd Method ◽

High Sensitivity ◽

Blue Shift ◽

Maximum Pressure ◽

Metal Insulator ◽

Suitable Candidate ◽

Wide Range ◽

Metal Insulator Metal ◽

Optical Pressure

We propose a metal-insulator-metal (MIM) structure consisting of a resonator and surface plasmon polariton (SPP) waveguides. By increasing the pressure, the resonator further deforms. Applying a maximum pressure of 6.2 MPa on the proposed device, a blue shift of 150 nm in the resonant wavelength is computed. Under the above mentioned pressure, the corresponding shift is linearly proportional to the pressure variation in a wide range of wavelength. This optical pressure sensor has a high sensitivity of 24 nm/MPa which makes it very suitable candidate for mechanical, electrical, biological, and biomedical engineering applications. The proposed device is simulated using finite-difference time-domain (FDTD) method.

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A Numerical Investigation of a Plasmonic Sensor Based on a Metal-Insulator-Metal Waveguide for Simultaneous Detection of Biological Analytes and Ambient Temperature

Nanomaterials ◽

10.3390/nano11102551 ◽

2021 ◽

Vol 11 (10) ◽

pp. 2551

Author(s):

Nikolay L. Kazanskiy ◽

Svetlana N. Khonina ◽

Muhammad A. Butt ◽

Andrzej Kaźmierczak ◽

Ryszard Piramidowicz

Keyword(s):

Ambient Temperature ◽

Simultaneous Detection ◽

Resonance Wavelength ◽

Temperature Sensing ◽

Sensor Design ◽

Plasmonic Sensor ◽

Metal Insulator ◽

Sensing Applications ◽

Metal Insulator Metal ◽

Biological Analytes

A multipurpose plasmonic sensor design based on a metal-insulator-metal (MIM) waveguide is numerically investigated in this paper. The proposed design can be instantaneously employed for biosensing and temperature sensing applications. The sensor consists of two simple resonant cavities having a square and circular shape, with the side coupled to an MIM bus waveguide. For biosensing operation, the analytes can be injected into the square cavity while a thermo-optic polymer is deposited in the circular cavity, which provides a shift in resonance wavelength according to the variation in ambient temperature. Both sensing processes work independently. Each cavity provides a resonance dip at a distinct position in the transmission spectrum of the sensor, which does not obscure the analysis process. Such a simple configuration embedded in the single-chip can potentially provide a sensitivity of 700 nm/RIU and −0.35 nm/°C for biosensing and temperature sensing, respectively. Furthermore, the figure of merit (FOM) for the biosensing module and temperature sensing module is around 21.9 and 0.008, respectively. FOM is the ratio between the sensitivity of the device and width of the resonance dip. We suppose that the suggested sensor design can be valuable in twofold ways: (i) in the scenarios where the testing of the biological analytes should be conducted in a controlled temperature environment and (ii) for reducing the influence on ambient temperature fluctuations on refractometric measurements in real-time mode.

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Effect of Compound Dielectric and Metal Thinning on Metal-Insulator-Metal Resonant Absorbers for Multispectral Infrared Air-Bridge Bolometers

MRS Advances ◽

10.1557/adv.2017.30 ◽

2017 ◽

Vol 2 (42) ◽

pp. 2281-2286 ◽

Cited By ~ 1

Author(s):

Robert E. Peale ◽

Seth Calhoun ◽

Chris J. Fredricksen ◽

Evan Smith ◽

Shiva Vangala ◽

...

Keyword(s):

Response Times ◽

Resonance Wavelength ◽

Thermal Mass ◽

Metal Insulator ◽

Metal Insulator Metal

ABSTRACTAddition of wavelength selective absorbers on microbolometers tends to increase their thermal mass and slow their infrared response times. Making the bolometric material an integral part of the absorber and minimizing layer thicknesses is one possible way to maintain high detector speeds. Here, we study experimentally the effect on permittivity of adding a layer of semiconducting VOx between two layers of SiO2. Additionally, we investigate theoretically the effect on resonance wavelength of thinning the metal in metal-insulator-metal plasmonic resonant absorbers.

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