Simultaneous detection of hydrogen sulfide and carbon dioxide based on off‐axis integrated cavity output spectroscopy using a near‐infrared distributed feedback diode laser

2021 ◽  
Author(s):  
Xing Tian ◽  
Gang Cheng ◽  
Yanan Cao ◽  
Jiajin Chen ◽  
Kun Liu ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Hydrogen Sulfide ◽  
Diode Laser ◽  
Near Infrared ◽  
Simultaneous Detection ◽  
Distributed Feedback ◽  
Cavity Output

Design of an open path near-infrared diode laser sensor: application to oxygen, water, and carbon dioxide vapor detection

1994 ◽  
Vol 33 (30) ◽  
pp. 7059 ◽  
Author(s):  
H. Riris ◽  
C. B. Carlisle ◽  
L. W. Carr ◽  
D. E. Cooper ◽  
R. U. Martinelli ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Diode Laser ◽  
Near Infrared ◽  
Laser Sensor ◽  
Vapor Detection ◽  
Sensor Application ◽  
Open Path ◽  
Diode Laser Sensor

scholarly journals Organic semiconductor distributed feedback laser pixels for lab-on-a-chip applications fabricated by laser-assisted replication

2014 ◽  
Vol 174 ◽  
pp. 153-164 ◽  
Author(s):  
Xin Liu ◽  
Stephan Prinz ◽  
Heino Besser ◽  
Wilhelm Pfleging ◽  
Markus Wissmann ◽  
...  
Keyword(s):  
Laser Beam ◽  
Diode Laser ◽  
Organic Semiconductor ◽  
Near Infrared ◽  
Negative Impact ◽  
Distributed Feedback ◽  
Fabrication Process ◽  
Simultaneous Generation ◽  
Dfb Laser ◽  
Diode Laser Beam

The integration of organic semiconductor distributed feedback (DFB) laser sources into all-polymer chips is promising for biomedical or chemical analysis. However, the fabrication of DFB corrugations is often expensive and time-consuming. Here, we apply the method of laser-assisted replication using a near-infrared diode laser beam to efficiently fabricate inexpensive poly(methyl methacrylate) (PMMA) chips with spatially localized organic DFB laser pixels. This time-saving fabrication process enables a pre-defined positioning of nanoscale corrugations on the chip and a simultaneous generation of nanoscale gratings for organic edge-emitting laser pixels next to microscale waveguide structures. A single chip of size 30 mm × 30 mm can be processed within 5 min. Laser-assisted replication allows for the subsequent addition of further nanostructures without a negative impact on the existing photonic components. The minimum replication area can be defined as being as small as the diode laser beam focus spot size. To complete the fabrication process, we encapsulate the chip in PMMA using laser transmission welding.

High sensitivity near-infrared diode laser spectroscopy of hydrogen sulfide

1993 ◽  
Author(s):  
Duncan A. Tate ◽  
Liang-Guo Wang ◽  
Thomas F. Gallagher
Keyword(s):  
Hydrogen Sulfide ◽  
Diode Laser ◽  
Laser Spectroscopy ◽  
Near Infrared ◽  
High Sensitivity ◽  
Diode Laser Spectroscopy

Near-Infrared Methane Detection Device Using Wavelength-Modulated Distributed Feedback Diode Laser around 1.654 µm

2013 ◽  
Vol 47 (3) ◽  
pp. 197-205 ◽  
Author(s):  
Jian-Qiang Huang ◽  
Chuan-Tao Zheng ◽  
Zong-Li Gao ◽  
Wei-Lin Ye ◽  
Yi-Ding Wang
Keyword(s):  
Diode Laser ◽  
Near Infrared ◽  
Distributed Feedback ◽  
Methane Detection
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