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A new waveguide switch/modulator for integrated optics
(1975)
A waveguide optical switch and/or modulator device is described that uses a single-mode waveguide version of the Mach-Zehnder interferometer. A mode selective branching waveguide is used for switching, and modulation can ...
Behavioural effects of electrical stimulation of the hypothalamus of the goldfish (Carassius auratus)
(1975)
Food-satiated goldfish were stimulated in tanks containing food on the surface of the water and on the bottom of the tank. Various components of the feeding response were seen, and complete feeding was observed, which was ...
Refractive index profile measurements of diffused optical waveguides
(1974-09-01)
Refractive index profiles resulting from the fabrication of optical waveguides by diffusion techniques are measured using a reflection interferometric technique. In Cd-diffused ZnSe waveguides, the index variations are ...
Additives for the enhancement of fusion and endocytosis in higher plant protoplasts : An electrophoretic study
(1974-06-01)
A range of additives has been employed to enhance both endocytosis and fusion in isolated higher plant protoplast systems. The effects of these compounds, at various concentrations, on the electrical properties of the ...
The explanatory power of Chomsky's transformational generative grammar
(1974)
One of the main difficulties in Chomsky's account of generative grammars and linguistic theories is to determine what exactly these grammars and theories explain. In some places Chomsky seems to be saying that they explain ...
Lawrence, Leavis and culture
(1974)
A technique for obtaining the electrocardiogram of fish
(1973-02-01)
1. A method is described which enables the electrocardiogram of a fish to be studied over extended periods using chronically implanted electrodes. 2.2. This method has been used successfully for studies on restrained and ...
Photoluminescence determinations of Cd diffusion in ZnSe
(1973)
The diffusion constant D(T) of cadmium into single-crystal zinc selenide was measured using a photoluminescence/etch technique. Diffusions were performed in sealed ampoules using cadmium metal and cadmium selenide powder ...
Waveguide electro-optic modulation in II-VI compounds
(1973)
Electro-optic intensity modulation is demonstrated in three-dimensional (channel) waveguides fabricated by diffusion techniques in ZnSe and CdS. Typical diffused guide dimensions are 1.6 μm × 19 μm × 2 mm. Two electrode ...