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- Kristopher S. Urquhart, Hamid Farhoosh, Sing H. Lee
- Photonics West - Lasers and Applications in…
- 1990

The curved fringes that exist in spherical diffractive lenses present problems in terms of the computational cost of fracturing
the curved fringes into e-beam acceptable shapes, and the fact that… (More)

An exact formalism is developed for describing cosmological models with strong, long wavelength gravitational waves of general polarization propagating over backgrounds corresponding to Bianchi types… (More)

Comparison of binary encoding schemes for electron-beam fabrication of computer generated holograms.

- Hamid Farhoosh, Michael R. Feldman, Sing H. Lee, C. C. Guest, Yeshaiahu Fainman, Reiner Eschbach
- Applied optics
- 1987

The suitability of various binary encoding methods for electron-beam recording of computer generated holograms is systematically evaluated. Subjected to the limitations of computing resources, a set… (More)

- Kristopher S. Urquhart, Sing H. Lee, C. C. Guest, Michael R. Feldman, Hamid Farhoosh
- Applied optics
- 1989

Computer Aided Design (CAD) systems that have been developed for electrical and mechanical design tasks are also effective tools for the process of designing Computer Generated Holograms (CGHs),… (More)

- Hamid Farhoosh, Günther F. Schrack
- IEEE Computer Graphics and Applications
- 1986

Existing specification systems, such as the hue/ lighness/saturation system, use triples of numbers to spec1fy color, which can be tedious to work with. The Color Naming system allows users to… (More)

The structure of the Killing horizon surrounding a uniformly accelerating and rotating particle which is emitting gravitational radiation is investigated. When expressed in terms of a coordinate… (More)

- Hamid Farhoosh, Yashaiahu Fainman, Kristopher S. Urquhart, Sing H. Lee
- Photonics West - Lasers and Applications in…
- 1989

In this paper we discuss two "real-time" (turn around times of a few seconds up to a minute) systems for display of three dimensional computer data using computer generated holograms. In one system… (More)

An algorithm is presented for the computation of large size fast Fourier transforms (FFTs) for computer-generated holograms. The algorithm is useful when the recording device has a very large… (More)

The structure of Killing horizons in the static vacuum C metric which represents the gravitational field of a uniformly accelerating Schwarzschild-type particle is studied. It is shown that for A/sup… (More)

- Hamid Farhoosh
- 1991

A computer-aided design (CAD) system for the design of computer generated holograms (CGHs) to be fabricated by electron-beam (e-beam) lithography is introduced. Detailed knowledge about computer… (More)