Abstract
Unlike the conventional theory of giant oscillator strength, the recently proposed bipolariton model describes two-photon excitation of an excitonic molecule in terms of resonant polariton-polariton Coulomb scattering. Using angle-resolved spectroscopy, we directly measure the angular dependence of the molecule luminescence under resonant two-photon excitation. We find that the observed photoluminescence is highly directional and well correlated with the propagation direction of the incident laser. This observation unambiguously supports the core idea of this model that replaces the idea of a biexciton by that of a mutually bound propagating polariton molecule.
| Original language | English |
|---|---|
| Article number | 233201 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 76 |
| Issue number | 23 |
| DOIs | |
| Publication status | Published - Dec 10 2007 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Evidence for two-photon generation of propagating bipolaritons in CuCl. / Jang, J. I.; Ketterson, J. B.; Anderson, M. A.; Chang, Robert P. H.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 76, No. 23, 233201, 10.12.2007.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Evidence for two-photon generation of propagating bipolaritons in CuCl
AU - Jang, J. I.
AU - Ketterson, J. B.
AU - Anderson, M. A.
AU - Chang, Robert P. H.
PY - 2007/12/10
Y1 - 2007/12/10
N2 - Unlike the conventional theory of giant oscillator strength, the recently proposed bipolariton model describes two-photon excitation of an excitonic molecule in terms of resonant polariton-polariton Coulomb scattering. Using angle-resolved spectroscopy, we directly measure the angular dependence of the molecule luminescence under resonant two-photon excitation. We find that the observed photoluminescence is highly directional and well correlated with the propagation direction of the incident laser. This observation unambiguously supports the core idea of this model that replaces the idea of a biexciton by that of a mutually bound propagating polariton molecule.
AB - Unlike the conventional theory of giant oscillator strength, the recently proposed bipolariton model describes two-photon excitation of an excitonic molecule in terms of resonant polariton-polariton Coulomb scattering. Using angle-resolved spectroscopy, we directly measure the angular dependence of the molecule luminescence under resonant two-photon excitation. We find that the observed photoluminescence is highly directional and well correlated with the propagation direction of the incident laser. This observation unambiguously supports the core idea of this model that replaces the idea of a biexciton by that of a mutually bound propagating polariton molecule.
UR - http://www.scopus.com/inward/record.url?scp=37149018011&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=37149018011&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.76.233201
DO - 10.1103/PhysRevB.76.233201
M3 - Article
AN - SCOPUS:37149018011
VL - 76
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 23
M1 - 233201
ER -