dc.identifier.uri |
http://dx.doi.org/10.15488/4197 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/4231 |
|
dc.contributor.author |
Freytag, Felix
|
|
dc.contributor.author |
Booker, Philip
|
|
dc.contributor.author |
Corradi, Gabor
|
|
dc.contributor.author |
Messerschmidt, Simon
|
|
dc.contributor.author |
Krampf, Andreas
|
|
dc.contributor.author |
Imlau, Mirco
|
|
dc.date.accessioned |
2018-12-17T13:14:07Z |
|
dc.date.available |
2018-12-17T13:14:07Z |
|
dc.date.issued |
2018 |
|
dc.identifier.citation |
Freytag, F.; Booker, P.; Corradi, G.; Messerschmidt, S.; Krampf, A.; Imlau, M.: Picosecond near-to-mid-infrared absorption of pulse-injected small polarons in magnesium doped lithium niobate. In: Optical Materials Express 8 (2018), Nr. 6, S. 1505-1514. DOI: https://doi.org/10.1364/OME.8.001505 |
|
dc.description.abstract |
Femtosecond-pulse-induced (Epump = 2:5 eV) picosecond infrared absorption is studied in the spectral region between 0.30 eV and 1.05 eV in LiNbO3:Mg. We find a noninstantaneous mid-infrared absorption peak in the time domain up to 1 ps and a broad-band, long-lived absorption (maximum at 0.85 eV, width ≈ 0:5 eV), for t > 1 ps. The modelling succeeds by considering small Nb4+ Nb electron polaron formation along the sequence: (i) twophoton injection of hot electron-hole pairs at Nb-O-octahedra, (ii) dissociation and electron cooling by electron-phonon-scattering, and (iii) electron self-localization by strong electronphonon- coupling. |
eng |
dc.language.iso |
eng |
|
dc.publisher |
Washington, DC : Optical Society of America |
|
dc.relation.ispartofseries |
Optical Materials Express 8 (2018), Nr. 6 |
|
dc.rights |
OSA Open Access License |
|
dc.rights.uri |
https://www.osapublishing.org/submit/review/open-access-policy-statement.cfm |
|
dc.subject |
Electromagnetic pulse |
eng |
dc.subject |
Electrons |
eng |
dc.subject |
Infrared absorption |
eng |
dc.subject |
Infrared devices |
eng |
dc.subject |
Lithium |
eng |
dc.subject |
Magnesium |
eng |
dc.subject |
Niobium compounds |
eng |
dc.subject |
Phonons |
eng |
dc.subject |
Polarons |
eng |
dc.subject |
Electron cooling |
eng |
dc.subject |
Electron hole pairs |
eng |
dc.subject |
Electron phonon couplings |
eng |
dc.subject |
Electron phonon scattering |
eng |
dc.subject |
Electron polarons |
eng |
dc.subject |
Mid infrared absorptions |
eng |
dc.subject |
Self localization |
eng |
dc.subject |
Spectral region |
eng |
dc.subject |
Light absorption |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.title |
Picosecond near-to-mid-infrared absorption of pulse-injected small polarons in magnesium doped lithium niobate |
|
dc.type |
Article |
|
dc.type |
Text |
|
dc.relation.issn |
21593930 |
|
dc.relation.doi |
https://doi.org/10.1364/OME.8.001505 |
|
dc.bibliographicCitation.issue |
6 |
|
dc.bibliographicCitation.volume |
8 |
|
dc.bibliographicCitation.firstPage |
1505 |
|
dc.bibliographicCitation.lastPage |
1514 |
|
dc.description.version |
publishedVersion |
|
tib.accessRights |
frei zug�nglich |
|