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Three-dimensional lensless imaging using laser frequency diversity

1992; Optica Publishing Group; Volume: 31; Issue: 2 Linguagem: Inglês

10.1364/ao.31.000255

0003-6935

Joseph C. Marron, Kirk S. Schroeder,

Optical Systems and Laser Technology

A laser radar system for three-dimensional (3-D) lensless imaging is analyzed in theory and experiment. 3-D imaging is accomplished by making use of the relationship between the angular and wavelength dependence of the scattered light and an object's 3-D Fourier transform. The concept is demonstrated by obtaining a 3-D image of an extended object by using a charge-coupled device detector array and an argon-ion laser with a tunable intracavity étalon.