Abstract
DIFFRACTION patterns in liquids have recently been produced in this laboratory by using ultra-sonic waves of frequencies above 100 Mc./sec., and certain interesting features of such patterns have been studied1. With a 2-mm. tourmaline plate, frequencies up to 103 Mc./sec. are now communicated to a glass slab as sound waves and the corresponding diffraction patterns obtained by allowing light to pass through the glass slab, as was first done by Hiedemann2, but at much lower frequencies. The thickness of the glass slab used in our investigations is such that at these frequencies it oscillates at about its 300th harmonic.
Similar content being viewed by others
Article PDF
References
[Nature, 159, 267 (1947).]
Naturwiss., 23, 705 (1935).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
BHAGAVANTAM, S., RAO, B. Hiedemann Patterns at Very High Frequencies. Nature 159, 742 (1947). https://doi.org/10.1038/159742a0
Issue Date:
DOI: https://doi.org/10.1038/159742a0
This article is cited by
Comments
By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.