72 DPI Image
150 DPI Image
300 DPI Image
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| Title: |
Photothermal Induced Resonance (PTIR) |
| Description: |
The sample (green/white) absorbs infrared laser light (purple) at wavelengths determined by its chemical composition, causing it to expand, which deflects the AFM cantilever. Bottom left: The AFM detects the height of two small polystyrene particles and a large polymethylmethacrylate (PMMA) particle. Bottom right: The light is tuned to be absorbed only by PMMA but not by polystyrene. Combining the data and recording chemical images at different wavelengths produces a map of the surface's topography and chemistry.
-CNST
See also http://www.nist.gov/cnst/ptir-021213.cfm.
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| Subjects (names): |
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| Topics/Categories: |
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| Type: |
Graphic/scientific data |
| Source: |
National Institute of Standards and Technology |
Credit Line as it should
appear in print: |
Credit: Centrone/NIST |
| AV Number: |
13CNST002 |
| Date Created: |
2013 |
| Date Entered: |
2/12/2013 |
