Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
  • (Optica Publishing Group, 2015),
  • paper EF_P_5

Control and generation of drifting pattern using asymmetrical Fourier filtering

Not Accessible

Your library or personal account may give you access

Abstract

Fourier Filtering is a well-known technique that found multiple practical applications such as e.g. radio frequency selection [1], noise reduction on images [2]. It has also be studied in fundamental research and leads to, for instance, transverse pattern stabilization [3]. To do so, some temporal or spatial frequencies are killed or diminished symmetrically with respect to the zero frequency (DC). Negative frequencies have, a priori, no sense physically except for analytical calculations, so that the notion of asymmetrical Fourier filtering would have no meaning. This is not true in optics, since spatial the Fourier transform of an input field coincides with its field distribution located in the focal plane of a lens, and negative frequencies correspond to one half of the Fourier picture. Thus, the concept of positive and negative frequencies holds in spatial optics and so asymmetrical Fourier filtering can be implemented.

© 2015 IEEE

PDF Article
More Like This
Manipulation, Selection and Control of Pattern Formation Using Fourier Space Filtering

C. Denz, M. Schwab, and S. Juul Jensen
QTuF2 European Quantum Electronics Conference (EQEC) 1998

Control of spatiotemporal optical patterns using spatial frequency filter in a two-dimensional nonlinear optical system

Yoshio Hayasaki, Hirotsugu Yamamoto, and Nobuo Nishida
ThI4_2 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2001

Asymmetric counter propagating fronts without flow

I. Andrade-Silva, M. G. Clerc, and V. Odent
EF_8_5 European Quantum Electronics Conference (EQEC) 2015

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved