@article{oai:tsukuba.repo.nii.ac.jp:00017981,
 author = {Yashima, Kenta and Oka, Kotaro and Hino, Ken-ichi and 日野, 健一 and Maeshima, Nobuya and 前島, 展也 and Tong, Xiao Min and 仝, 暁民},
 issue = {21-22},
 journal = {Solid state communications},
 month = {Jun},
 note = {The quasienergy structure of excitonic Floquet states of laser-driven semiconductor superlattices is examined. To understand the detail of it, linear absorption spectra of optical interband transitions invoked by an alternative monochromatic probe laser are calculated based on the Liouvílle equation. It is found that for a strong driving laser, the interminiband interaction, namely, the ac-Zener tunneling, causes a red shift of the spectral peak pertaining to the 1s-exciton Floquet state, and enlarges the intensity of its concomitant replica bands. In particular, it is noted that one of the replicas exhibits an anomalous negative absorption.},
 pages = {823--826},
 title = {Anomalous exciton spectra of laser-driven semiconductor superlattices},
 volume = {149},
 year = {2009},
 yomi = {ヒノ, ケンイチ and マエシマ,ノブヤ and トン, ショウミン}
}