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Infection of protoplasts from yeast with tobacco mosaic virus
(1972-12-22)
PROTOPLASTS from higher plant cells can become infected with plant viruses under special conditions, and it has been shown that yeast cells can become infected with viruses normally found in different fungal genera . We ...
Fluorescence of graded-band-gap CdSxSe1-x crystals produced by diffusion
(1972)
The fluorescence of CdSxSe1-x mixed crystals with band-gap gradients as large as 1200 eV/cm has been investigated at 77°K. The graded samples were produced by heating CdSe or CdSxSe1-x platelets in a sulfur-selenium ...
Optical waveguides by diffusion in II-VI compounds
(1972)
Planar optical waveguides have been made by sealed ampoule diffusion of Cd and Se into ZnS and Cd into ZnSe. Three-dimensional diffused guides of Cd-diffused ZnSe have been made by using a masking layer of evaporated ...
Fabrication of single-crystal semiconductor optical waveguides by solid-state diffusion
(1972)
Optical surface waveguides have been fabricated by diffusing selenium into single-crystal CdS substrates to produce graded-composition CdS Se crystals. Planar guides which confine a beam in one dimension and guides produced ...