Design of a thin film infrared barcode on a flexible substrate
Abbreviated Journal Title
Int. J. Infrared Millimeter Waves
infrared thin film barcode; infrared information encoding; Engineering, Electrical & Electronic; Optics; Physics, Applied
We report the design, fabrication and characterization of an infrared barcode. This barcode is composed of a bilayer of titanium and amorphous silicon on a flexible Kapton substrate. Information encoded in the barcode shows high contrast when viewed with an infrared imaging system in the 8 to 12mum spectral region. The barcode information is concealed under visible viewing conditions, i.e., the barcode appears as an untreated, uniform metal sheet to a detector of visible radiation (400 to 700nm).
International Journal of Infrared and Millimeter Waves
"Design of a thin film infrared barcode on a flexible substrate" (2004). Faculty Bibliography 2000s. 7832.