High Absorption of Goldblack Film for a pyroelectric detector based on ultra-thin LiTaO3 crystal

2021 ◽  
Author(s):  
Zhiqing Liang ◽  
Xing Zheng ◽  
Guanting Li ◽  
Ziji Liu ◽  
Yadong Jiang ◽  
...  
Keyword(s):  
Pyroelectric Detector ◽  
High Absorption

Realization of Both High Absorption of Active Materials and Low Ohmic Loss in Plasmonic Cavities

2019 ◽  
Vol 7 (11) ◽  
pp. 1801627 ◽  
Author(s):  
Tao Zhen ◽  
Jing Zhou ◽  
Zhifeng Li ◽  
Xiaoshuang Chen
Keyword(s):  
Ohmic Loss ◽  
Active Materials ◽  
High Absorption

scholarly journals NDIR CO2 gas sensing using CMOS compatible MEMS ScAlN-based pyroelectric detector

2021 ◽  
pp. 130437
Author(s):  
Doris Keh Ting Ng ◽  
Chong Pei Ho ◽  
Linfang Xu ◽  
Weiguo Chen ◽  
Yuan Hsing Fu ◽  
...  
Keyword(s):  
Gas Sensing ◽  
Pyroelectric Detector ◽  
Co2 Gas ◽  
Cmos Compatible

Application Features of Pyroelectric Detector for THz Wave Receiving

2020 ◽  
Author(s):  
I.V. Kolenov ◽  
P.K. Nesterov ◽  
I.A. Nesterov ◽  
A.S. Lukash ◽  
V.I. Bezborodov ◽  
...  
Keyword(s):  
Pyroelectric Detector ◽  
Thz Wave

scholarly journals Microfabrication with Very Low-Average Power of Green Light to Produce PDMS Microchips

Polymers ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 607
Author(s):  
Lucero M. Hernandez-Cedillo ◽  
Francisco G. Vázquez-Cuevas ◽  
Rafael Quintero-Torres ◽  
Jose L. Aragón ◽  
Miguel Angel Ocampo Mortera ◽  
...  
Keyword(s):  
Low Cost ◽  
Average Power ◽  
Green Light ◽  
Microfluidic Devices ◽  
Processing Parameters ◽  
Coating Film ◽  
Two Dimensional ◽  
Dimethyl Siloxane ◽  
Visible Laser ◽  
High Absorption

In this article, we show an alternative low-cost fabrication method to obtain poly(dimethyl siloxane) (PDMS) microfluidic devices. The proposed method allows the inscription of micron resolution channels on polystyrene (PS) surfaces, used as a mold for the wanted microchip’s production, by applying a high absorption coating film on the PS surface to ablate it with a focused low-power visible laser. The method allows for obtaining micro-resolution channels at powers between 2 and 10 mW and can realize any two-dimensional polymeric devices. The effect of the main processing parameters on the channel’s geometry is presented.

The design of the preamplifier in pyroelectric detector

1989 ◽  
Vol 91 (1) ◽  
pp. 389-389
Author(s):  
L. You-Sheng ◽  
Z. Yu-Rong ◽  
L. Chi
Keyword(s):  
Pyroelectric Detector

scholarly journals New Approach in the Application of Conjugated Polymers: The Light-Activated Source of Versatile Singlet Oxygen Molecule

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1098
Author(s):  
Agata Blacha-Grzechnik
Keyword(s):  
Conjugated Polymers ◽  
Singlet Oxygen ◽  
Near Infrared ◽  
Photophysical Properties ◽  
Short Review ◽  
The Novel ◽  
New Approach ◽  
Intermolecular Energy ◽  
Intermolecular Energy Transfer ◽  
High Absorption

For many years, the research on conjugated polymers (CPs) has been mainly focused on their application in organic electronics. Recent works, however, show that due to the unique optical and photophysical properties of CPs, such as high absorption in UV–Vis or even near-infrared (NIR) region and efficient intra-/intermolecular energy transfer, which can be relatively easily optimized, CPs can be considered as an effective light-activated source of versatile and highly reactive singlet oxygen for medical or catalytic use. The aim of this short review is to present the novel possibilities that lie dormant in those exceptional polymers with the extended system of π-conjugated bonds.

scholarly journals Improvement of an InfraRed Pyroelectric Detector Performances in THz Range Using the Terajet Effect

2021 ◽  
Vol 11 (15) ◽  
pp. 7011
Author(s):  
Oleg V. Minin ◽  
Jaime Calvo-Gallego ◽  
Yahya M. Meziani ◽  
Igor V. Minin
Keyword(s):  
Internal Structure ◽  
Diffraction Limit ◽  
Noise Equivalent Power ◽  
Pyroelectric Detector ◽  
Optical Window ◽  
Ir Sensors ◽  
Thz Detection ◽  
Thz Range ◽  
Thz Applications

An infrared (IR) pyroelectric detector was investigated for terahertz (THz) detection using the principle of the terajet effect, which focuses the beam beyond the diffraction limit. The terahertz beam was coupled to the detector’s optical window through a two-wavelength-dimension dielectric cubic particle-lens based on the terajet effect. We experimentally demonstrate an enhancement of about 6 dB in the sensitivity under excitation of 0.2 THz without degradation of the noise equivalent power value. The results show that the proposed method could be applied to increase the sensitivity of various commercial IR sensors for THz applications that do not require modification of the internal structure, and it may apply also to acoustics and plasmonic detectors.

scholarly journals Dual functionality metamaterial enables ultra-compact, highly sensitive uncooled infrared sensor

Nanophotonics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 1337-1346
Author(s):  
Jin Tao ◽  
Zhongzhu Liang ◽  
Guang Zeng ◽  
Dejia Meng ◽  
David R. Smith ◽  
...  
Keyword(s):  
High Sensitivity ◽  
Metamaterial Absorber ◽  
Bulk Acoustic Wave ◽  
Infrared Sensors ◽  
Bulk Acoustic Wave Resonator ◽  
Wave Resonator ◽  
Highly Sensitive ◽  
Film Bulk ◽  
Perfect Metamaterial Absorber ◽  
High Absorption

Abstract Cointegration and coupling a perfect metamaterial absorber (PMA) together with a film bulk acoustic wave resonator (FBAR) in a monolithic fashion is introduced for the purpose of producing ultracompact uncooled infrared sensors of high sensitivity. An optimized ultrathin multilayer stack was implemented to realize the proposed device. It is experimentally demonstrated that the resonance frequency of the FBAR can be used efficiently as a sensor output as it downshifts linearly with the intensity of the incident infrared irradiation. The resulting sensor also achieves a high absorption of 88% for an infrared spectrum centered at a wavelength of 8.2 μm. The structure is compact and can be easily integrated on a CMOS-compatible chip since both the FBAR and PMA utilize and share the same stack of metal and dielectric layers.

Sign in / Sign up

Export Citation Format

Share Document