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Hybrid Phonons in Nanostructures$
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Brian K. Ridley

Print publication date: 2017

Print ISBN-13: 9780198788362

Published to Oxford Scholarship Online: April 2017

DOI: 10.1093/acprof:oso/9780198788362.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2022. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use.date: 26 January 2022

Optical Modes

Optical Modes

Chapter:
(p.24) 2 Optical Modes
Source:
Hybrid Phonons in Nanostructures
Author(s):

B. K. Ridley

Publisher:
Oxford University Press
DOI:10.1093/acprof:oso/9780198788362.003.0004

A continuum theory of long-wavelength non-polar acoustic and optical modes arising out of a microscopic model of the lattice dynamics is described. The chapter covers: microscopic model of the diamond lattice, equations of motion for acoustic and optical modes, decoupling of acoustic and optical modes, relation of elastic constants to bond strengths, lower symmetry for optical modes, and connection rules in nanostructures for acoustic modes different from those for optical modes.

Keywords:   optical modes, microscopic, diamond lattice, continuum theory, nanostructures

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