Directional radiation by asymmetrical dielectric gratings

Details Directional radiation by asymmetrical dielectric gratings Directional radiation by asymmetrical dielectric gratings

1975-07-09

1976-09-28

Corbin, John K.

350 96WG, 350162R, G02B 514

Patent

active

039828107

ABSTRACT:
There is disclosed a technique whereby a dielectric grating disposed on a in film that has a surface wave propagating thereon can concentrate the power from this wave into a beam that is either above or below the grating according to the profile of the grating. By this technique, surface waves traveling in different directions can be distinguished and the efficiency of optical beam couplers can be improved, among other applications.

REFERENCES:
patent: 3674336 (1972-07-01), Kogelnik
patent: 3774987 (1973-11-01), Boivin
patent: 3905676 (1975-09-01), Ulrich
patent: 3912363 (1975-10-01), Hammer

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