Title :
Field measurements of natural and artificial targets using a mid-infrared laser reflectance sensor
Author :
Narayanan, R.M. ; Green, S.E.
Author_Institution :
Dept. of Electr. Eng., Nebraska Univ., Lincoln, NE, USA
Abstract :
A tunable mid-infrared CO2 laser reflectance sensor operating in the 9-11 μm wavelength range has been developed and field-tested at the University of Nebraska. This system is capable of gathering reflectance data at various wavelengths, incidence angles and linear polarization combinations. Preliminary measurements of various natural and artificial targets such as soil, coniferous and deciduous trees, concrete and brick building material at distances of up to 100 m demonstrate the potential of this system to characterize the mid-infrared reflectance of terrain features for remote sensing applications. Field-acquired data compare well with data on similar materials measured in the laboratory under controlled conditions.
Keywords :
carbon compounds; gas lasers; laser tuning; optical sensors; reflectivity; remote sensing by laser beam; 100 m; 9 to 11 mum; CO/sub 2/; University of Nebraska; artificial targets; brick building material; concrete; coniferous trees; deciduous tree; field measurements; field-acquired data; field-tested; incidence angles; laboratory under controlled conditions; linear polarization; mid-infrared laser reflectance sensor; mid-infrared reflectance; natural targets; reflectance data; remote sensing applications; soil; terrain features; tunable mid-infrared CO/sub 2/ laser reflectance sensor; Building materials; Concrete; Gas detectors; Laboratories; Polarization; Reflectivity; Remote sensing; Soil measurements; Tunable circuits and devices; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
