Abstract
The wave-vector dependence of the third-order nonlinearity due to the excitonic polaritons in CuCl is microscopically calculated using the Bloch functions at finite wave vectors obtained from the k→•p→ perturbation method. It is found that in the spatially dispersive region the magnitude of the nonlinearity is not so strongly dependent on the wave vector over the range from less than 106 cm-1 (upper-branch polariton) up to 107 cm-1 (lower-branch polariton).
| Original language | English |
|---|---|
| Pages (from-to) | 6161-6164 |
| Number of pages | 4 |
| Journal | Physical Review B |
| Volume | 28 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1983 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Microscopic calculation of the wave-vector dependence of the third-order nonlinearity due to excitonic polaritons in CuCl. / Takagahara, Toshihide; Birman, Joseph L.
In: Physical Review B, Vol. 28, No. 10, 1983, p. 6161-6164.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Microscopic calculation of the wave-vector dependence of the third-order nonlinearity due to excitonic polaritons in CuCl
AU - Takagahara, Toshihide
AU - Birman, Joseph L.
PY - 1983
Y1 - 1983
N2 - The wave-vector dependence of the third-order nonlinearity due to the excitonic polaritons in CuCl is microscopically calculated using the Bloch functions at finite wave vectors obtained from the k→•p→ perturbation method. It is found that in the spatially dispersive region the magnitude of the nonlinearity is not so strongly dependent on the wave vector over the range from less than 106 cm-1 (upper-branch polariton) up to 107 cm-1 (lower-branch polariton).
AB - The wave-vector dependence of the third-order nonlinearity due to the excitonic polaritons in CuCl is microscopically calculated using the Bloch functions at finite wave vectors obtained from the k→•p→ perturbation method. It is found that in the spatially dispersive region the magnitude of the nonlinearity is not so strongly dependent on the wave vector over the range from less than 106 cm-1 (upper-branch polariton) up to 107 cm-1 (lower-branch polariton).
UR - http://www.scopus.com/inward/record.url?scp=35949018504&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35949018504&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.28.6161
DO - 10.1103/PhysRevB.28.6161
M3 - Article
VL - 28
SP - 6161
EP - 6164
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 10
ER -