Title :
Picosecond surface electron diffraction studies of laser-heated Ge low-index surfaces
Author :
Zeng, X. ; Elsayed-Ali, H.E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Old Dominion Univ., Norfolk, VA, USA
Abstract :
The dynamics of the Ge(111) reconstruction and the Ge(111), Ge(100), and Ge(110) surface phase transitions near the bulk melting point is investigated by 100-ps time-resolved reflection high-energy electron diffraction (RHEED). A laser pulse heats the surface while a synchronized electron pulse is used to obtain a RHEED pattern
Keywords :
germanium; high-speed optical techniques; laser beam effects; melting point; reflection high energy electron diffraction; solid-state phase transformations; 100 ps; Ge; Ge(100); Ge(110) surface phase transitions; Ge(111); Ge(111) reconstruction; RHEED; RHEED pattern; bulk melting point; laser pulse heating; laser-heated Ge low-index surfaces; picosecond surface electron diffraction studies; ps time-resolved reflection high-energy electron diffraction; synchronized electron pulse; Diffraction; Electrons; Heating; Laser transitions; Optical pulses; Optical reflection; Surface emitting lasers; Surface reconstruction; Temperature distribution;
Conference_Titel :
Lasers and Electro-Optics Society 2000 Annual Meeting. LEOS 2000. 13th Annual Meeting. IEEE
Conference_Location :
Rio Grande
Print_ISBN :
0-7803-5947-X
DOI :
10.1109/LEOS.2000.890665
