Metastability of transient states

Michael K. Rafailov

doi:10.1117/12.2266544

22 May 2017 Metastability of transient states

Michael K. Rafailov

Proceedings Volume 10193, Ultrafast Bandgap Photonics II; 1019302 (2017) https://doi.org/10.1117/12.2266544
Event: SPIE Defense + Security, 2017, Anaheim, CA, United States

Abstract

High intensity ultrashort pulse causes dramatic perturbations in electronic structure of condensed matter. In the same time energy in high intensity single pulse may not be sufficient to disrupt sample thermal equilibrium. Interesting experimental results in ultrashort pulse photo-excited solids have been reported recently on transient athermal phenomena induced by ultrashort high intensity low energy pulse – phenomena related to both athermal phase transitions and athermal state changes. Athermal non-equilibrium of electronic system – and induced changes in magnetic and optical states, may exist only for a period of time comparable to excited carriers’ relaxation time. That time is not sufficient for emerging application ranging from light induced superconductivity to infrared countermeasures. While single pulse interaction with condensed matter leading to transit state appearance is well observed, documented, and, to some extends, explained, one of the major problem is to maintain meta-stability of such transient states. Metastability of athermal non-equilibrium that could last well beyond electronic system relaxation time. The objective of this paper is to discuss some issues and approaches to meta-stability of transient states induced by ultrashort pulses in condensed matter.

Conference Presentation

Citation Download Citation

Michael K. Rafailov "Metastability of transient states", Proc. SPIE 10193, Ultrafast Bandgap Photonics II, 1019302 (22 May 2017); https://doi.org/10.1117/12.2266544

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