Ballistic electron transport in InP observed by subpicosecond time-resolved Raman spectroscopy

Kong-Thon Tsen, D. K. Ferry, Jye Shyang Wang, Chao Hsiung Huang, Hao Hsiung Lin

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


Electron ballistic transport in an InP-based p-i-n nanostructure under the application of an electric field has been studied by time-resolved Raman spectroscopy at T = 300 K. The time evolution of electron distribution, electron drift velocity has been directly measured with subpicosecond time resolution. Our experimental results show that, for a photoexcited electron-hole pair density of n≅5×1016 cm-3 electrons travel quasi-ballistically - electron drift velocity increases linearly with time, during the first 150 fs. After 150 fs it increases sublinearly until reaching the peak value at about 300 fs. The electron drift velocity then decreases to its steady-state value.

Original languageEnglish (US)
Pages (from-to)416-418
Number of pages3
JournalPhysica B: Condensed Matter
Issue number1-4
StatePublished - Dec 1 1999
EventProceedings of the 1999 11th International Conference on Nonequilibrium Carrier Dynamics in Semiconductors (HCIS-11) - Kyoto, Jpn
Duration: Jul 19 1999Jul 23 1999

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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