Accession Number : ADA135089

Title :   Acoustic Microscopy at Cryogenic Temperatures.

Descriptive Note : Annual summary rept. 1 Jul 82-30 Jun 83,

Corporate Author : STANFORD UNIV CA EDWARD L GINZTON LAB OF PHYSICS

Personal Author(s) : Quate,C F

PDF Url : ADA135089

Report Date : Sep 1983

Pagination or Media Count : 14

Abstract : The acoustic microscope operating in superfluid helium now has a resolution of 500 Angstroms. The images from this instrument are superior to those in an optical microscope and exhibit some features that rival those of the SEM. Immediate progress should permit us to move up in frequency by a factor of two and improve the resolution accordingly. Another mode of imaging is described which exploits thermal phonons in solids and holds promise of providing information on the interior details of solid structures.

Descriptors :   *Acoustic microscopes, *Cryogenics, Microscopy, Image processing, Thermal properties, Helium, Superfluidity, Phonons, Detection

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE