Abstract
The femtosecond (fs) studies of ultrafast optical nonlinearities, energy relaxation and trapping dynamics in three types of quantum dots are reported. High sensitivity fs nonlinear transmission experiments in the new chirp-free configuration were applied to measure pump-induced absorption changes for optical transitions involving the lowest and the first excited electron states in CdSe nanocrystallines of different radii. The Coulomb interaction influences all transitions, resulting in transition shifts which are seen as derivative-like features in transient absorption (TA). The pump intensity-dependent TA indicate a change in carrier relaxation channels at high pump levels, manifested as a distinct difference in the nonlinear optical response.
| Original language | English |
|---|---|
| Title of host publication | IEEE Nonlinear Optics: Materials, Fundamentals and Applications - Conference Proceedings |
| Publisher | IEEE |
| Pages | 136-138 |
| Number of pages | 3 |
| Publication status | Published - 1998 |
| Event | Proceedings of the 1998 IEEE Nonlinear Optics Topical Meeting - Princeville, HI, USA Duration: Aug 10 1998 → Aug 14 1998 |
Other
| Other | Proceedings of the 1998 IEEE Nonlinear Optics Topical Meeting |
|---|---|
| City | Princeville, HI, USA |
| Period | 8/10/98 → 8/14/98 |
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ASJC Scopus subject areas
- Engineering(all)
Cite this
Optical nonlinearities and ultrafast carrier dynamics in semiconductor quantum dots. / Klimov, Victor I; McBranch, D.; Schwarz, C.
IEEE Nonlinear Optics: Materials, Fundamentals and Applications - Conference Proceedings. IEEE, 1998. p. 136-138.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Optical nonlinearities and ultrafast carrier dynamics in semiconductor quantum dots
AU - Klimov, Victor I
AU - McBranch, D.
AU - Schwarz, C.
PY - 1998
Y1 - 1998
N2 - The femtosecond (fs) studies of ultrafast optical nonlinearities, energy relaxation and trapping dynamics in three types of quantum dots are reported. High sensitivity fs nonlinear transmission experiments in the new chirp-free configuration were applied to measure pump-induced absorption changes for optical transitions involving the lowest and the first excited electron states in CdSe nanocrystallines of different radii. The Coulomb interaction influences all transitions, resulting in transition shifts which are seen as derivative-like features in transient absorption (TA). The pump intensity-dependent TA indicate a change in carrier relaxation channels at high pump levels, manifested as a distinct difference in the nonlinear optical response.
AB - The femtosecond (fs) studies of ultrafast optical nonlinearities, energy relaxation and trapping dynamics in three types of quantum dots are reported. High sensitivity fs nonlinear transmission experiments in the new chirp-free configuration were applied to measure pump-induced absorption changes for optical transitions involving the lowest and the first excited electron states in CdSe nanocrystallines of different radii. The Coulomb interaction influences all transitions, resulting in transition shifts which are seen as derivative-like features in transient absorption (TA). The pump intensity-dependent TA indicate a change in carrier relaxation channels at high pump levels, manifested as a distinct difference in the nonlinear optical response.
UR - http://www.scopus.com/inward/record.url?scp=0032289002&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032289002&partnerID=8YFLogxK
M3 - Conference contribution
SP - 136
EP - 138
BT - IEEE Nonlinear Optics: Materials, Fundamentals and Applications - Conference Proceedings
PB - IEEE
ER -