Abstract
Electronic and phonon coherence are usually measured in different ways because their time-scales are very different. In this paper we simultaneously measure the electronic and phonon coherence using the interference of the electron-phonon correlated states induced by two phase-locked optical pulses. Interferometric visibility showed that electronic coherence remained in a semiconducting GaAs crystal until ∼40 fs; in contrast, electronic coherence disappeared within 10 fs in a semimetallic Bi crystal at room temperature, differing substantially from the long damping time of its phonon coherence, in the picosecond range.
| Original language | English |
|---|---|
| Article number | 4456 |
| Journal | Scientific Reports |
| Volume | 4 |
| DOIs | |
| Publication status | Published - Mar 25 2014 |
| Externally published | Yes |
Fingerprint
ASJC Scopus subject areas
- General
Cite this
Measuring quantum coherence in bulk solids using dual phase-locked optical pulses. / Hayashi, Shingo; Kato, Keigo; Norimatsu, Katsura; Hada, Masaki; Kayanuma, Yosuke; Nakamura, Kazutaka G.
In: Scientific Reports, Vol. 4, 4456, 25.03.2014.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Measuring quantum coherence in bulk solids using dual phase-locked optical pulses
AU - Hayashi, Shingo
AU - Kato, Keigo
AU - Norimatsu, Katsura
AU - Hada, Masaki
AU - Kayanuma, Yosuke
AU - Nakamura, Kazutaka G.
PY - 2014/3/25
Y1 - 2014/3/25
N2 - Electronic and phonon coherence are usually measured in different ways because their time-scales are very different. In this paper we simultaneously measure the electronic and phonon coherence using the interference of the electron-phonon correlated states induced by two phase-locked optical pulses. Interferometric visibility showed that electronic coherence remained in a semiconducting GaAs crystal until ∼40 fs; in contrast, electronic coherence disappeared within 10 fs in a semimetallic Bi crystal at room temperature, differing substantially from the long damping time of its phonon coherence, in the picosecond range.
AB - Electronic and phonon coherence are usually measured in different ways because their time-scales are very different. In this paper we simultaneously measure the electronic and phonon coherence using the interference of the electron-phonon correlated states induced by two phase-locked optical pulses. Interferometric visibility showed that electronic coherence remained in a semiconducting GaAs crystal until ∼40 fs; in contrast, electronic coherence disappeared within 10 fs in a semimetallic Bi crystal at room temperature, differing substantially from the long damping time of its phonon coherence, in the picosecond range.
UR - http://www.scopus.com/inward/record.url?scp=84897029806&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84897029806&partnerID=8YFLogxK
U2 - 10.1038/srep04456
DO - 10.1038/srep04456
M3 - Article
AN - SCOPUS:84897029806
VL - 4
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
M1 - 4456
ER -