Title :
Selective laser excitation spectroscopy of gallium and phosphorous in germanium
Author :
Freeth, C.A. ; Lewis, R.A.
Author_Institution :
Dept. of Eng. Phys., Wollongong Univ., NSW, Australia
Abstract :
Shallow impurity states of donors and acceptors in Ge have been investigated by far-infrared laser magnetospectroscopy. The Zeeman splitting of the impurity states produces resonant absorption of the laser radiation at certain magnetic fields. The data are compared to measurements made using a conventional spectrometer and good agreement is found.
Keywords :
Zeeman effect; elemental semiconductors; gallium; germanium; impurity absorption spectra; impurity states; infrared spectra; laser beam applications; phosphorus; photoexcitation; resonance; Ge-GaP; Zeeman splitting; far-infrared laser magnetospectroscopy; resonant absorption; shallow impurity states; Finite impulse response filter; Germanium; Laser excitation; Laser tuning; Magnetic field measurement; Magnetic fields; Magnetic resonance; Pump lasers; Spectroscopy; Superconducting magnets;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices, 2002 Conference on
Print_ISBN :
0-7803-7571-8
DOI :
10.1109/COMMAD.2002.1237286
