Mid-infrared gas sensing using uncooled quantum cascade laser with low power consumption

2019 ◽  
Author(s):  
Makoto Murata ◽  
Hiroyuki Yoshinaga ◽  
Takashi Kato ◽  
Hiroki Mori ◽  
Yukihiro Tsuji ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Quantum Cascade Laser ◽  
Gas Sensing ◽  
Low Power Consumption ◽  
Mid Infrared ◽  
Quantum Cascade

Low power‐consumption mid‐infrared distributed feedback quantum cascade laser for gas‐sensing application

2017 ◽  
Vol 53 (8) ◽  
pp. 549-551 ◽  
Author(s):  
J. Hashimoto ◽  
H. Yoshinaga ◽  
H. Mori ◽  
Y. Tsuji ◽  
M. Murata ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Quantum Cascade Laser ◽  
Gas Sensing ◽  
Distributed Feedback ◽  
Low Power Consumption ◽  
Mid Infrared ◽  
Quantum Cascade ◽  
Sensing Application

Low Power-Consumption Distributed Feedback Quantum Cascade Laser

2014 ◽  
Author(s):  
Jun-Ichi Hashimoto ◽  
Hiroyuki Yoshinaga ◽  
Hiroki Mori ◽  
Yukihiro Tsuji ◽  
Makoto Murata ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Quantum Cascade Laser ◽  
Distributed Feedback ◽  
Low Power Consumption ◽  
Quantum Cascade

scholarly journals Low power consumption quartz-enhanced photoacoustic gas sensor employing a quantum cascade laser in pulsed operation

2017 ◽  
Author(s):  
Angelo Sampaolo ◽  
Pietro Patimisco ◽  
Aleksander Gluszek ◽  
Arkadiusz Hudzikowski ◽  
Marilena Giglio ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Quantum Cascade Laser ◽  
Low Power Consumption ◽  
Quantum Cascade

Improvement of Gas Sensing of Uniform Ag 3 PO 4 Nanoparticles to NH 3 under the Assistant of LED Lamp with Low Power Consumption at Room Temperature

2021 ◽  
Vol 6 (32) ◽  
pp. 8338-8344
Author(s):  
Xingyan Shao ◽  
Shuo Wang ◽  
Leqi Hu ◽  
Tingting Liu ◽  
Xiaomei Wang ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Room Temperature ◽  
Gas Sensing ◽  
Low Power Consumption

Multi-gas sensing with quantum cascade laser array in the mid-infrared region

2017 ◽  
Vol 123 (5) ◽  
Author(s):  
Laurent Bizet ◽  
Raphael Vallon ◽  
Bertrand Parvitte ◽  
Mickael Brun ◽  
Gregory Maisons ◽  
...  
Keyword(s):  
Quantum Cascade Laser ◽  
Gas Sensing ◽  
Infrared Region ◽  
Laser Array ◽  
Mid Infrared ◽  
Quantum Cascade

Ion Gel-Coated Graphene Transistor for Ethanol Gas Sensing

2021 ◽  
Vol 105 ◽  
pp. 3-7
Author(s):  
De Sheng Liu ◽  
Jiang Wu ◽  
Zhi Ming Wang
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Industrial Production ◽  
Gas Sensing ◽  
Drunk Driving ◽  
Fast Response ◽  
Low Power Consumption ◽  
Operating Voltage ◽  
Ethanol Sensor ◽  
Ion Gel

Ethanol sensor has been widely used in our daily life and industrial production, such as drunk driving test, food fermentation monitoring, and industrial gas leakage monitoring. With the advent of the Internet of Things (IoT) era, ethanol sensors will develop towards miniaturization and low-power consumption in the near future. However, traditional ethanol sensors with large volumes and high-power consumption are difficult to meet these requirements. Therefore, it is urgent to study ethanol gas sensors based on new materials and new structures. Here, we demonstrated a flexible ethanol sensor based on an ion gel-coated graphene field-effect transistor (IGFET). The device has a small graphene channel size with a width of 300 μm and a length of 200 μm. The device showed a low operating voltage of less than |±1| V. When the device was put into an ethanol gas condition, the Dirac point voltage of the IGFET showed a negative shift, which means an n-type doping effect to the graphene channel. Furthermore, the sensor showed a normalized current change of-11% against an ethanol gas concentration of 78.51 g/L at a constant drain-source voltage of 0.1 V. In addition, the device exhibited a fast response time of ~10 s and a recovery time of ~18 s. Moreover, the detectable range of the device was found to as wide as 19.76-785.1 g/L. Based on the above results, the flexible IGFET-based ethanol sensor with small size and low-power consumption has great potential to be used in the industrial production of the IoT era.

Electro Thermal Effects of Geometrically Modified MEMS-Based Micro Heater for Gas Sensing Applications

2019 ◽  
Vol 17 (9) ◽  
pp. 725-732
Author(s):  
Vishal Balasubramanian ◽  
V. S. Selvakumar ◽  
L. Sujatha ◽  
M. Revathi ◽  
C. V. Gayathri
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Gas Sensing ◽  
Comsol Multiphysics ◽  
Low Power Consumption ◽  
Temperature Uniformity ◽  
Gas Sensitivity ◽  
Average Temperature ◽  
Sensing Applications ◽  
Sensitivity And Selectivity

Micro heaters play a major role in gas sensing applications owing to their accuracy, selectivity and low power consumption. The proposed micro heater employs a window type polysilicon micro-hotplate structure, which is a square cell of side 500 μm, designed using COMSOL Multiphysics. It is highly imperative that an evenly distributed temperature is necessary over the broad area of the heater in order to improve its gas sensitivity and selectivity. In this paper, we have explained the design and analysis of a novel window-type micro heater made of polysilicon. The main aim of the work is to achieve temperature uniformity and low power consumption. By optimizing the geometry of the micro heater, we can obtain both temperature uniformity and low power consumption. This geometrical optimization also improves the sensitivity and response time of the sensor. To support them, we have carried out simulations using COMSOL Multiphysics. The proposed structure has obtained a uniform temperature of 1134.1 K and an average temperature of 1130.39 K. Such high and uniform temperatures finds applications in gas sensors. This work also analyzes the proper choice and placement of electrodes across the geometry of the heater.

Development of Low Power Consumption DFB Quantum Cascade Lasers

2015 ◽  
Vol 27 (22) ◽  
pp. 2335-2338 ◽  
Author(s):  
Yinghui Liu ◽  
Jinchuan Zhang ◽  
Zhiwei Jia ◽  
Danyang Yao ◽  
Fengqi Liu ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Quantum Cascade Lasers ◽  
Low Power Consumption ◽  
Quantum Cascade ◽  
Cascade Lasers

Low power-consumption quantum cascade lasers

2015 ◽  
Author(s):  
Tsukuru Katsuyama ◽  
Jun-ichi Hashimoto ◽  
Hiroyuki Yoshinaga ◽  
Hiroki Mori ◽  
Yukihiro Tsuji ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Quantum Cascade Lasers ◽  
Low Power Consumption ◽  
Quantum Cascade ◽  
Cascade Lasers
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