The transform defining that, if a reference beam is a divergent spherical wavefront, then the reconstructed image will be the equivalent of the near-field diffraction pattern of the object. Also called lensless transform.

The direct computation of the Fourier transform of the space variant system output of an optical processor with a single...

A device incorporating a spatial light modulator and a reference filter; used for matching an input optical waveform or...

The use of computer analysis in the calculation of diffraction patterns for information on the design of optical systems. In...

The frequency domain is a concept used in signal processing and analysis to represent signals and data in terms of their...

A computer-generated hologram (CGH) is a holographic image produced using computational methods and algorithms, rather than...

The signal-to-noise ratio (SNR) obtained with a Fourier transform spectrometer when detector noise prevails, which exceeds...

Digital signal processing (DSP) refers to the manipulation and analysis of signals, which are representations of physical...

An instrument using a Michelson interferometer, a beamsplitter, two plane mirrors and a detector to give Fourier analysis of...

The optical Fourier transform is a mathematical operation applied to optical signals that involves transforming a spatial...

The angular spectrum approach is a mathematical and computational technique used in the field of optics to analyze and...

A hologram formed without lenses and with the object and reference points sharing the same plane. In the initial recording,...

The Fourier series representation of a two-dimensional periodic field, assuming that the original image is periodic both...

Any of the various methods of decomposing a signal into a set of coefficients of orthogonal waveforms (trigonometric...

A hologram formed by the recording of a plane object situated in the focal plane of a lens so that each object gives rise to...

FTIR (Fourier transform infrared) spectrometer is a powerful analytical instrument used to obtain an infrared spectrum of...