Jump to ContentJump to Main Navigation
Show Summary Details
More options …

Zeitschrift für Naturforschung A

A Journal of Physical Sciences

Editor-in-Chief: Holthaus, Martin

Editorial Board: Fetecau, Corina / Kiefer, Claus / Röpke, Gerd / Steeb, Willi-Hans

12 Issues per year


IMPACT FACTOR 2016: 1.432

Cite Score 2016: 1.35

SCImago Journal Rank (SJR) 2016: 0.368
Source Normalized Impact per Paper (SNIP) 2016: 0.594

Online
ISSN
1865-7109
See all formats and pricing
More options …
Volume 26, Issue 4 (Apr 1971)

Issues

Eigenfrequencies and Eigenvectors of Polaritons with Application to LiNbO3 I. Long Optical Phonons

G. Börstel / L. Merten
Published Online: 2014-06-02 | DOI: https://doi.org/10.1515/zna-1971-0405

Abstract

The properties of polaritons in uniaxial crystals with an arbitrary number of atoms in the unit cell are discussed in the harmonic approximation. For LiNbO3 , which seems to become a very important substance for applications in tunable Raman lasers, the complete set of eigenfrequencies and eigenvectors (normal coordinates, electric field, electric polarisation) is calculated numerically.

In the limiting case k→∞ (long optical phonons), which is treated in detail in this first paper, an example for each possible type of extraordinary phonon branches is discussed, namely a (T→L) -a (L→T)-, a (T→T)-and a (L→L) -branch of each type. The results are comparable with ex­perimental data only for the frequencies of the 45°-phonons, measured by Barker and Loudon. The agreement is very satisfactory.

About the article

Received: 1971-01-30

Published Online: 2014-06-02

Published in Print: 1971-04-01


Citation Information: Zeitschrift für Naturforschung A, ISSN (Online) 1865-7109, ISSN (Print) 0932-0784, DOI: https://doi.org/10.1515/zna-1971-0405.

Export Citation

© 1946 – 2014: Verlag der Zeitschrift für Naturforschung. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

Citing Articles

Here you can find all Crossref-listed publications in which this article is cited. If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.

[1]
B. F. Polkovnikov
Journal of Soviet Laser Research, 1992, Volume 13, Number 5, Page 323
[2]
L. Laughman and L. W. Davis
Physical Review B, 1974, Volume 10, Number 6, Page 2590

Comments (0)

Please log in or register to comment.
Log in