TY - JOUR
T1 - Single-shot 25-frame burst imaging of ultrafast phase transition of Ge2Sb2Te5 with a sub-picosecond resolution
AU - Suzuki, Takakazu
AU - Hida, Ryohei
AU - Yamaguchi, Yuki
AU - Nakagawa, Keiichi
AU - Saiki, Toshiharu
AU - Kannari, Fumihiko
N1 - Funding Information:
Acknowledgments This research was supported by a Grant-in-Aid from the Ministry of Education, Culture, Sports, Science and Technology, Japan for the Photon Frontier Network Program; and in part by a research assistantship of a Grant-in-Aid to the Program for Leading Graduate School of Keio University for “Science for Development of Super Mature Society” from the Ministry of Education, Culture, Sport, Science and Technology, Japan.
Publisher Copyright:
© 2017 The Japan Society of Applied Physics.
PY - 2017/9
Y1 - 2017/9
N2 - We captured ultrafast two-dimensional (2D)-burst images of the crystalline-to-amorphous phase transition of Ge2Sb2Te5. These transitions were induced by a femtosecond laser pulse, and the images, with a sub-picosecond temporal resolution, were acquired on a single-shot basis through the change in local optical transmittance. We employed a 2D-burst imaging method of sequentially timed all-optical mapping photography utilizing spectral filtering (SF-STAMP). The SF-STAMP system consists of a 25-beam-generating diffractive optical element, a band-pass filter, and two Fourier transform lenses. We used a frequency-chirped broadband pulse and achieved 25-frame burst imaging with an interval of 133 fs in a singleshot time window of 3.2 ps.
AB - We captured ultrafast two-dimensional (2D)-burst images of the crystalline-to-amorphous phase transition of Ge2Sb2Te5. These transitions were induced by a femtosecond laser pulse, and the images, with a sub-picosecond temporal resolution, were acquired on a single-shot basis through the change in local optical transmittance. We employed a 2D-burst imaging method of sequentially timed all-optical mapping photography utilizing spectral filtering (SF-STAMP). The SF-STAMP system consists of a 25-beam-generating diffractive optical element, a band-pass filter, and two Fourier transform lenses. We used a frequency-chirped broadband pulse and achieved 25-frame burst imaging with an interval of 133 fs in a singleshot time window of 3.2 ps.
UR - http://www.scopus.com/inward/record.url?scp=85029147691&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85029147691&partnerID=8YFLogxK
U2 - 10.7567/APEX.10.092502
DO - 10.7567/APEX.10.092502
M3 - Article
AN - SCOPUS:85029147691
SN - 1882-0778
VL - 10
JO - Applied Physics Express
JF - Applied Physics Express
IS - 9
M1 - 092502
ER -