Abstract
The double diffraction light intensity of two identical gratings placed parallel in the Fresnel region is sensitive to the lateral displacement ΔX, and is also affected by the air gap R between the gratings. In this note, the dependence of the double diffraction light intensity on ΔX and R for each order beam has been obtained directly by observing the intensity pattern on a screen.
Original language | English |
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Pages (from-to) | 307-310 |
Number of pages | 4 |
Journal | Optics and Laser Technology |
Volume | 16 |
Issue number | 6 |
DOIs | |
Publication status | Published - 1984 Dec |
Externally published | Yes |
Keywords
- diffraction
- displacement measurement
- optics
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering