Sub-10 fs Time-Resolved Vibronic Optical Microscopy.
Sub-10 fs Time-Resolved Vibronic Optical Microscopy.
复制标题
DOI:
10.1021/acs.jpclett.6b02387
复制
发表时间:
2016-12-01
期刊:
影响因子:
--
通讯作者:
Kukura P
中科院分区:
文献类型:
--
作者:
Schnedermann C;Lim JM;Wende T;Duarte AS;Ni L;Gu Q;Sadhanala A;Rao A;Kukura P
We introduce femtosecond wide-field transient absorption microscopy combining sub-10 fs pump and probe pulses covering the complete visible (500–650 nm) and near-infrared (650–950 nm) spectrum with diffraction-limited optical resolution. We demonstrate the capabilities of our system by reporting the spatially- and spectrally-resolved transient electronic response of MAPbI3–xClx perovskite films and reveal significant quenching of the transient bleach signal at grain boundaries. The unprecedented temporal resolution enables us to directly observe the formation of band-gap renormalization, completed in 25 fs after photoexcitation. In addition, we acquire hyperspectral Raman maps of TIPS pentacene films with sub-400 nm spatial and sub-15 cm–1 spectral resolution covering the 100–2000 cm–1 window. Our approach opens up the possibility of studying ultrafast dynamics on nanometer length and femtosecond time scales in a variety of two-dimensional and nanoscopic systems.
登录
查看更多内容
影响因子:
14.8
作者:
Arroyo, Jaime Ortega;Cole, Daniel;Kukura, Philipp
通讯作者:
Kukura, Philipp
影响因子:
6.7
作者:
Chen, Tao;Lu, Feng;Huang, Yanyi
通讯作者:
Huang, Yanyi
影响因子:
8.6
作者:
Jung, Yookyung;Slipchenko, Mikhail N.;Cheng, Ji-Xin
通讯作者:
Cheng, Ji-Xin
影响因子:
2.9
作者:
Liebel, M.;Schnedermann, C.;Kukura, P.
通讯作者:
Kukura, P.
影响因子:
56.9
作者:
Gelinas, Simon;Rao, Akshay;Friend, Richard H.
通讯作者:
Friend, Richard H.