E.G. Lean, C.G. Powell
Applied Physics Letters
A new type of electronically scanned and focused acoustic beam scanner, based on coherent scattering of a grazing incident bulk wave with chirped frequencies by an array of surface grooves, is discussed. Experimental results of a 40 MHz bulk wave grating acoustic scanner with 1″ field of view and 300 μm lateral resolution will be presented as a feasibility demonstration. © 1981, The Institution of Electrical Engineers. All rights reserved.
E.G. Lean, C.G. Powell
Applied Physics Letters
E.G. Lean
ISSCC 1972
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Applied Physics Letters
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