Development of an optical pressure‐sensitive membrane based on plasmon resonance on a gold island film

2020 ◽  
Author(s):  
Nagato Takebayashi ◽  
Satoshi Ikezawa ◽  
Kentaro Iwami
Keyword(s):  
Plasmon Resonance ◽  
Island Film ◽  
Pressure Sensitive ◽  
Optical Pressure ◽  
Sensitive Membrane

scholarly journals Coupled WGMs in a Dielectric Microsphere: Proof-of-Concept of Optical Pressure Microsensor

2021 ◽  
Author(s):  
Igor Minin ◽  
Oleg Minin ◽  
Yuri Geints
Keyword(s):  
Ambient Pressure ◽  
Resonant Mode ◽  
Proof Of Concept ◽  
Sensing Element ◽  
Particle Volume ◽  
Pressure Sensing ◽  
Whispering Gallery ◽  
Pressure Sensitive ◽  
Exact Position ◽  
Optical Pressure

We propose the physical proof-of-concept of a new simple miniature pressure sensor based on the whispering gallery modes (WGMs) optically excited in a dielectric microsphere placed near a flexible reflective membrane, which acts as an ambient pressure sensing element. WGMs excitation is carried out by free-space coupling of optical radiation to a microsphere. The distinctive feature of proposed sensor design is double excitation of optical eigenmodes by forward and backward propagating radiation reflected from a membrane that causes WGMs interference in particle volume. The optical intensity of resulting resonant field established in the microsphere carries information about the exact position of the pressure-loaded reflecting membrane. The sensitivity of the proposed sensor strongly depends on the quality factor of the excited resonant mode, as well as geometrical and mechanical parameters of the flexible membrane. We propose to register not the displacement of the position of the WGM resonance, but the change in its amplitude under the influence of the change in the distance between the sphere and the mirror under the influence of pressure. Important advantages of the proposed sensor are miniature design (linear sensor dimensions depends only on the membrane diameter) and the absence of a mechanical contact of pressure-sensitive element with WGM resonator.

Transparent, Optical, Pressure-Sensitive Artificial Skin for Large-Area Stretchable Electronics

2012 ◽  
Vol 24 (24) ◽  
pp. 3223-3227 ◽  
Author(s):  
Marc Ramuz ◽  
Benjamin C-K. Tee ◽  
Jeffrey B.-H. Tok ◽  
Zhenan Bao
Keyword(s):  
Artificial Skin ◽  
Stretchable Electronics ◽  
Large Area ◽  
Pressure Sensitive ◽  
Optical Pressure

scholarly journals Signal Enhancement of Pressure-Sensitive Film Based on Localized Surface Plasmon Resonance

Sensors ◽  
2021 ◽  
Vol 21 (22) ◽  
pp. 7627
Author(s):  
Bei Zhou ◽  
Feng Gu ◽  
Yingzheng Liu ◽  
Di Peng
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Signal Enhancement ◽  
Localized Surface Plasmon ◽  
Pressure Sensitive ◽  
Sensitive Film ◽  
Pressure Sensitive Film ◽  
Micro Flow

Pressure-sensitive films have been used for measurement in micro flow, but thin films have very limited intensity, resulting in poor signal-noise ratio (SNR). This paper presents a pressure-sensitive film whose emission signal is enhanced by silver nanoparticles (AgNPs) based on localized surface plasmon resonance (LSPR). Electronic beam evaporator and annealing furnace are used to fabricate silver nanotexture surface. PtTFPP and polystyrene are dissolved in toluene and then spin-coated on the silver nanotexture surface to prepare the pressure-sensitive films. Signal enhancement of film with AgNPs due to LSPR is analyzed and enhancement effect of samples with different particle sizes and spacer thickness are compared. Pressure and temperature calibrations are performed to assess the sensing performance of pressure-sensitive films. Pressure-sensitive films with AgNPs demonstrate signal enhancement due to LSPR and show promise for measurement in micro flow.

Application of Two-Component Pressure Sensitive Paint in Transonic Wind Tunnel

2011 ◽  
Vol 216 ◽  
pp. 181-187
Author(s):  
Yong Cun Zhang ◽  
Liu Sheng Chen ◽  
Jin Kui Shang ◽  
Xiao Guang Ma ◽  
Xue Yuan Chen ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
High Speed ◽  
System Development ◽  
Wind Tunnel Test ◽  
Pressure Sensitive Paint ◽  
Model Surface ◽  
Pressure Sensitive ◽  
Sensor Technique ◽  
Two Component ◽  
Optical Pressure

As a new optical pressure sensor technique, Pressure Sensitive Paint (PSP) is one of the important techn iques for model surface p ressure m easurement in wind tunnel test s . With the help of PSP , it is possible to do p ressure m easurement on compl icated or special model surface , which is usually difficult to be measured by pressure tap s . Since PSP technique being introduced into China from TsAGI (Russia) , AVIC ARI has investigated two-component PSP technique in high-speed wind tunnel in cooperati on with ICCAS China . T his report present s the principle of PSP technique, test control system development and the test result comparison s between PSP technique with two-component pressure sensitive paint FOP-2 and classic tap measurement on wing surface of an airplane model . T he results showed that the two-component pressure sensitive paint has better performance and can be used for model pressure measurement.

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