Abstract

Objects that vary slowly over time may be superresolved by use of moving gratings. A system of this kind was proposed three decades ago. However, such a system creates some distortion of the spectral response of the resolved objects, and it achieves superresolution in only one dimension. We propose an enhanced method based on Dammann gratings instead of regular gratings for achieving two-dimensional superresolution. The modified approach achieves results with undistorted output and relatively high light efficiency, and it is effective for both coherent and incoherent illumination. Preliminary results demonstrate the feasibility of the new approach.

© 1997 Optical Society of America

One-dimensional superresolution optical system for temporally restricted objects

David Mendlovic, Adolf W. Lohmann, Naim Konforti, Irena Kiryuschev, and Zeev Zalevsky
Appl. Opt. 36(11) 2353-2359 (1997)

High-frequency enhancement by an optical system for superresolution of temporally restricted objects

David Mendlovic, David Farkas, Zeev Zalevsky, and Adolf W. Lohmann
Opt. Lett. 23(10) 801-803 (1998)

Improved superresolution in coherent optical systems

Amir Shemer, Zeev Zalevsky, David Mendlovic, Emanuel Marom, Javier Garcia, and Pascuala Garcia Martinez
Appl. Opt. 40(26) 4688-4696 (2001)

Superresolving optical system with time multiplexing and computer decoding

Amir Shemer, David Mendlovic, Zeev Zalevsky, Javier Garcia, and Pascuala Garcia Martinez
Appl. Opt. 38(35) 7245-7251 (1999)

Superresolution optical system with two fixed generalized Damman gratings

Eran Sabo, Zeev Zalevsky, David Mendlovic, Naim Konforti, and Irena Kiryuschev
Appl. Opt. 39(29) 5318-5325 (2000)