Ultrasonic Force Microscopy (UFM) has been developed in order to improve the details and image contrast on "flat" areas of interest where the atomic force microscopy (AFM) images are limited in contrast. The combination of AFM-UFM allows a near field acoustic microscopic image to be generated. The AFM tip is used to detect the ultrasonic waves and overcomes the limitation of wavelength that occurs in acoustic microscopy. By using the elastic changes under the AFM tip, an image of much greater detail than the AFM topography can be generated.
Famous quotes containing the word force:
“The conduct of God who disposes all things kindly, is to put religion into the mind by reason, and into the heart by grace. But to attempt to put it into the mind and heart by force and threats is not to put religion there, but terror.”
—Blaise Pascal (1623–1662)