Abstract
Real-time detection and measurement of sub- ppm levels of formaldehyde in ambient air using diode- pumped 3:5mm difference-frequency generation (DFG) in periodically poled LiNbO3 (PPLN) is reported. Minimum detectable concentration of 30 ppb was achieved with a com- pact, portable room-temperature gas sensor configured for formaldehyde (H2CO) detection. This sensitivity, coupled with high selectivity and long term stability, is sufficient for various environmental applications.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
