Ultrafast mid-infrared spectroscopy of the charge- and spin-ordered nickelates

G. Coslovich; B. Huber; W.-S. Lee; Y.-D. Chuang; Y. Zhu; T. Sasagawa; Z. Hussain; H. A. Bechtel; M. C. Martin; R. W. Schoenlein; Z.-X. Shen; R. A. Kaindl

doi:10.1117/12.2005366

14 March 2013 Ultrafast mid-infrared spectroscopy of the charge- and spin-ordered nickelates

G. Coslovich, B. Huber, W.-S. Lee, Y.-D. Chuang, Y. Zhu, T. Sasagawa, Z. Hussain, H. A. Bechtel, M. C. Martin, R. W. Schoenlein, Z.-X. Shen, R. A. Kaindl

Author Affiliations +

Proceedings Volume 8623, Ultrafast Phenomena and Nanophotonics XVII; 862308 (2013) https://doi.org/10.1117/12.2005366
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

We discuss the mid-infrared optical response of a charge and spin-ordered nickelate in the ultrafast time domain. A strong photo-induced modulation of the optical reflectivity is observed on the sub-picosecond timescale, indicating the transient filling and recovery of the pseudogap in the mid-infrared charge transport. A variational Kramers-Kronig analysis of equilibrium reflectivity data is extended to time-resolved experiments, allowing us to extract the optical conductivity despite a comparatively limited frequency range of tunable femtosecond parametric sources. The fast dynamics of the spectral weight transfer supports an electronic origin of the mid-infrared pseudogap in nickelates.

Citation Download Citation

G. Coslovich, B. Huber, W.-S. Lee, Y.-D. Chuang, Y. Zhu, T. Sasagawa, Z. Hussain, H. A. Bechtel, M. C. Martin, R. W. Schoenlein, Z.-X. Shen, and R. A. Kaindl "Ultrafast mid-infrared spectroscopy of the charge- and spin-ordered nickelates", Proc. SPIE 8623, Ultrafast Phenomena and Nanophotonics XVII, 862308 (14 March 2013); https://doi.org/10.1117/12.2005366

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available