Sensitive LiTaO3 pyroelectric detector

1973 ◽  
Vol 44 (2) ◽  
pp. 929-931 ◽  
Author(s):  
C. B. Roundy ◽  
R. L. Byer
Keyword(s):  
Pyroelectric Detector

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

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 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.

Study of Optical Gas Chamber Based on Infrared Gas Sensor

2012 ◽  
Vol 472-475 ◽  
pp. 1102-1106
Author(s):  
Ting Liang ◽  
Xu Jun Yang ◽  
Cheng Yang Xue ◽  
Wen Dong Zhang
Keyword(s):  
Gas Sensor ◽  
Design Method ◽  
Experimental Results ◽  
Work Design ◽  
Pyroelectric Detector ◽  
Infrared Source ◽  
Response Sensitivity ◽  
Gas Chamber

In this work, design method for fabricating optical gas chamber of infrared gas sensor was introduced in detail. IRL715 infrared source, PYS3228 pyroelectric detector with double filters and optical gas chamber were assembled into the optical gas chamber, and then the Nor-infrared (NDIR)gas sensor was produced. After tested in specific methane environment, the performance of optical gas chamber was verified. Meanwhile, optical gas chamber was processed with dustproof and waterproof measures. Experimental results show that response sensitivity of optical gas chamber is good.

A distributed-line pyroelectric detector

1983 ◽  
Vol 46 (1) ◽  
pp. 261-265 ◽  
Author(s):  
A. van der Ziel ◽  
P. M. Xu
Keyword(s):  
Pyroelectric Detector

Recovery of noisy pyroelectric-detector signals through neural-network processing

2005 ◽  
Vol 76 (5) ◽  
pp. 053104 ◽  
Author(s):  
Martín G. González ◽  
Alejandro L. Peuriot ◽  
Verónica B. Slezak ◽  
Guillermo D. Santiago
Keyword(s):  
Neural Network ◽  
Pyroelectric Detector ◽  
Network Processing

Measurement-based extrapolation of spectral responsivity by using a low-NEP pyroelectric detector

2021 ◽  
Author(s):  
Seongchong Park ◽  
Dong-Hoon Lee ◽  
Kee Suk Hong
Keyword(s):  
Spectral Response ◽  
Previous Method ◽  
Pyroelectric Detector ◽  
Spectral Responsivity ◽  
Current Output ◽  
Experimental Procedure ◽  
Trap Detector ◽  
Minimum Uncertainty ◽  
Lock In ◽  
Dc Current

Abstract In case the primary realization of the spectral responsivity scale is not conducted at all target wavelengths but at only a small part of them, one needs to extrapolate values at the specific wavelengths to an extended range. In this work, we present a fully experimental procedure to extrapolate a single value of spectral responsivity at 633 nm into the whole working wavelength range (250 – 1100) nm of Si photodiodes. It is based on spectral responsivity comparison between a Si trap detector and a low-NEP pyroelectric detector of nearly flat spectral response. For this purpose, we developed a setup specialized to compare a Si-trap detector of dc-current output with a pyroelectric detector of ac-voltage output by using a modulated probing light source and a monitoring technique. To keep the probing light chopped even for the dc-photocurrent readout, we adopted a low chopping frequency of 4 Hz and a triggered readout for the Si-trap detector, which leads to a speedy comparison between the Si-trap detector and the pyroelectric detector. For the reference pyroelectric detector, we characterized the spectral absorptivity of the black-coating and the nonlinearity of the lock-in amplifier readout. Compiling all the required information, the spectral responsivity of the Si trap detector could be measured with the minimum uncertainty of 0.3 % (k = 2), which was validated by comparing with that of our previous method based on a numerical extrapolation.

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
Sign in / Sign up

Export Citation Format

Share Document