Abstract

We present an experimental and theoretical analysis of vibration microscopy using an arbitrarily defined detection aperture. For the two limiting cases, incoherent operation (no aperture) offers intensity-gradient information in the amplitude of higher harmonics of the vibration frequency, whereas coherent operation (pinhole aperture) reflects the phase of the object being scanned in the amplitude of the first harmonic. The possibilities of phase microscopy, when the system is used in a coherent mode of operation, are discussed.

© 1997 Optical Society of America

Two-dimensional operation of a scanning optical microscope by vibrating knife-edge tomography

S. Samson and A. Korpel
Appl. Opt. 34(2) 285-289 (1995)

Influence of source coherence and aperture distribution on the imaging properties in direct-view microscopy

S. J. Hewlett, D. T. Fewer, and E. M. McCabe
J. Opt. Soc. Am. A 14(5) 1066-1075 (1997)

Photorefractive optical lock-in vibration spectral measurement

Thomas C. Hale, Kenneth L. Telschow, and Vance A. Deason
Appl. Opt. 36(31) 8248-8258 (1997)

Experimental demonstration of tomographic slit technique for measurement of arbitrary intensity profiles of light beams

José Soto, Manuel Rendón, and Manuel Martín
Appl. Opt. 36(29) 7450-7454 (1997)

Vibration-resistant direct-phase-detecting optical interferometers

Timothy B. Carlson, Steven M. Denzer, Thomas R. Greenlee, Robert P. Groschen, Richard W. Peterson, and Glen M. Robinson
Appl. Opt. 36(28) 7162-7171 (1997)