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The density of energy flow of quasiparticles with arbitrary energy–momentum relation

✍ Scribed by I.N. Adamenko; K.E. Nemchenko; I.V. Tanatarov


Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
93 KB
Volume
120
Category
Article
ISSN
0167-7322

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On the Modal Density and Energy Flow Cha
✍ R.S. Langley 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 634 KB

General expressions for the modal density of one- and two-dimensional periodic structures are derived in terms of the phase constants which are associated with propagating wave motion. The energy flow in such structures is then considered, and it is formally proved that the energy velocity is always