Browsing Electrical, Electronic and Communications Engineering Research Collection by Author "Schwider, J."

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Browsing Electrical, Electronic and Communications Engineering Research Collection by Author

Now showing items 1-3 of 3

Binary blazed reflection gratings

Collischon, M. ; Haidner, H. ; Kipfer, P. ; Lang, A. ; Sheridan, John T. ; Schwider, J. ; Streibl, N. ; Lindolf, J. (Optical Society of America, 1994-06-01)

A reflection grating with a binary surface profile is presented that has high diffraction efficiency. The measured intensity for the + 1st diffracted order was 77%. The binary grating is composed of a minilattice with ...
Diffractive beam splitter for laser Doppler velocimetry

Schmidt, J. ; Völkel, R. ; Stork, W. ; Sheridan, John T. ; Schwider, J. ; Streibl, N. ; Durst, F. (Optical Society of America, 1992-09-01)

A miniaturized sensor head for the optical measurement of velocities of fluids based on laser Doppler velocimetry is demonstrated. Holographic optical elements mounted on a glass substrate are used for beam splitting and ...
Interferometric resolution examined by means of electromagnetic theory

Körner, T. O. ; Sheridan, John T. ; Schwider, J. (Optical Society of America, 1995-04-01)

Interferometric methods are widely used in surface metrology. A question that arises is how much information about the surface can be extracted from a given interferogram. For examination of the resolution limit ...