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Title: Extreme ultraviolet transient absorption of solids from femtosecond to attosecond timescales

Abstract

High-harmonic generation (HHG) produces ultrashort pulses of extreme ultraviolet radiation (XUV), which can be used for pump–probe transient absorption spectroscopy in metal oxides, semiconductors, and dielectrics. Femtosecond transient absorption on iron and cobalt oxides identifies ligand-to-metal charge transfer as the main spectroscopic transition, rather than metal-to-metal charge transfer or d–d transitions, upon photoexcitation in the visible. In silicon, attosecond transient absorption reveals that electrons tunnel into the conduction band from the valence band under strong-field excitation, to energies as high as 6 eV above the conduction band minimum. Here, the extensions of these experiments to other semiconductors, such as germanium, and other transition metal oxides, such as vanadium dioxide, are discussed. Germanium is of particular interest because it should be possible to follow both electron and hole dynamics in a single measurement using transient XUV absorption.

Authors:
 [1];  [1];  [2];  [3];  [4];  [5];  [6];  [2];  [7];  [7]
  1. Univ. of California, Berkeley, CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Univ. of California, Berkeley, CA (United States); Ludwig-Maximilians-Univ., Garching (Germany)
  4. Univ. of California, Berkeley, CA (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
  5. Univ. of California, Berkeley, CA (United States); Technion–Israel Institute of Technology, Haifa (Israel)
  6. Univ. of California, Berkeley, CA (United States); Univ. of Oregon, Eugene, OR (United States)
  7. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1502120
Alternate Identifier(s):
OSTI ID: 1249773
Report Number(s):
SAND-2019-2819J
Journal ID: ISSN 0740-3224; JOBPDE; 673424
Grant/Contract Number:  
AC04-94AL85000; AC02-05CH11231; FA9550-10-1-0195
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the Optical Society of America. Part B, Optical Physics
Additional Journal Information:
Journal Volume: 33; Journal Issue: 7; Journal ID: ISSN 0740-3224
Publisher:
Optical Society of America (OSA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; Multiharmonic generation; Spectroscopy, semiconductors; Ultrafast processes incondensed matter, including semiconductors

Citation Formats

Borja, Lauren J., Zürch, M., Pemmaraju, C. D., Schultze, Martin, Ramasesha, Krupa, Gandman, Andrey, Prell, James S., Prendergast, David, Neumark, Daniel M., and Leone, Stephen R. Extreme ultraviolet transient absorption of solids from femtosecond to attosecond timescales. United States: N. p., 2016. Web. doi:10.1364/JOSAB.33.000C57.
Borja, Lauren J., Zürch, M., Pemmaraju, C. D., Schultze, Martin, Ramasesha, Krupa, Gandman, Andrey, Prell, James S., Prendergast, David, Neumark, Daniel M., & Leone, Stephen R. Extreme ultraviolet transient absorption of solids from femtosecond to attosecond timescales. United States. doi:10.1364/JOSAB.33.000C57.
Borja, Lauren J., Zürch, M., Pemmaraju, C. D., Schultze, Martin, Ramasesha, Krupa, Gandman, Andrey, Prell, James S., Prendergast, David, Neumark, Daniel M., and Leone, Stephen R. Tue . "Extreme ultraviolet transient absorption of solids from femtosecond to attosecond timescales". United States. doi:10.1364/JOSAB.33.000C57. https://www.osti.gov/servlets/purl/1502120.
@article{osti_1502120,
title = {Extreme ultraviolet transient absorption of solids from femtosecond to attosecond timescales},
author = {Borja, Lauren J. and Zürch, M. and Pemmaraju, C. D. and Schultze, Martin and Ramasesha, Krupa and Gandman, Andrey and Prell, James S. and Prendergast, David and Neumark, Daniel M. and Leone, Stephen R.},
abstractNote = {High-harmonic generation (HHG) produces ultrashort pulses of extreme ultraviolet radiation (XUV), which can be used for pump–probe transient absorption spectroscopy in metal oxides, semiconductors, and dielectrics. Femtosecond transient absorption on iron and cobalt oxides identifies ligand-to-metal charge transfer as the main spectroscopic transition, rather than metal-to-metal charge transfer or d–d transitions, upon photoexcitation in the visible. In silicon, attosecond transient absorption reveals that electrons tunnel into the conduction band from the valence band under strong-field excitation, to energies as high as 6 eV above the conduction band minimum. Here, the extensions of these experiments to other semiconductors, such as germanium, and other transition metal oxides, such as vanadium dioxide, are discussed. Germanium is of particular interest because it should be possible to follow both electron and hole dynamics in a single measurement using transient XUV absorption.},
doi = {10.1364/JOSAB.33.000C57},
journal = {Journal of the Optical Society of America. Part B, Optical Physics},
number = 7,
volume = 33,
place = {United States},
year = {2016},
month = {4}
}

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