All

What are you looking for?

All
Projects
Results
Organizations

Quick search

  • Projects supported by TA ČR
  • Excellent projects
  • Projects with the highest public support
  • Current projects

Smart search

  • That is how I find a specific +word
  • That is how I leave the -word out of the results
  • “That is how I can find the whole phrase”

Coherent acoustic phonon oscillations and transient critical point parameters of Ge from femtosecond pump–probe ellipsometry

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00560870" target="_blank" >RIV/68378271:_____/22:00560870 - isvavai.cz</a>

  • Alternative codes found

    RIV/00216224:14310/22:00126069

  • Result on the web

    <a href="https://doi.org/10.1002/pssr.202200058" target="_blank" >https://doi.org/10.1002/pssr.202200058</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/pssr.202200058" target="_blank" >10.1002/pssr.202200058</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Coherent acoustic phonon oscillations and transient critical point parameters of Ge from femtosecond pump–probe ellipsometry

  • Original language description

    Herein, the complex pseudodielectric function of Ge and Si from femtosecond pump–probe spectroscopic ellipsometry with 267, 400, and 800 nm pump–pulse wavelengths is analyzed by fitting analytical lineshapes to the second derivatives of the pseudodielectric function with respect to energy. This yields the critical point parameters (threshold energy, lifetime broadening, amplitude, and excitonic phase angle) of E1 and E1+Δ1 in Ge and E1 in Si as functions of delay time. Coherent longitudinal acoustic phonon oscillations with a period of about 11 ps are observed in the transient critical point parameters of Ge. From the amplitude of these oscillations, the laser-induced strain is found to be on the order of 0.03% for Ge measured with the 800 nm pump pulse, which is in reasonable agreement with the strain calculated from theory.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Physica Status Solidi

  • ISSN

    1862-6254

  • e-ISSN

    1862-6270

  • Volume of the periodical

    16

  • Issue of the periodical within the volume

    7

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    7

  • Pages from-to

    2200058

  • UT code for WoS article

    000804607300001

  • EID of the result in the Scopus database

    2-s2.0-85131056773