Title :
Influence of a surface on the Franz-Keldysh effect in n- and p-type indium phosphide
Author :
Sakai, M. ; Kurayama, T. ; Niwa, A.
Author_Institution :
Fac. of Eng., Saitama Univ., Urawa, Japan
Abstract :
The influence of the surface on photoexcitation under static electric fields is studied by measuring and calculating the Franz-Keldysh (FK) spectra from a surface space-charge region in InP. An optically inactive surface layer (OISL) is found to be indispensable in accounting for the FK spectra observed under surface electric fields up to about 200 kV/cm. The origin of OISL is discussed in terms of surface effects on the field-induced wave function of the excited state
Keywords :
III-V semiconductors; electroreflectance; indium compounds; space charge; surface states; visible spectra; Franz-Keldysh effect; Franz-Keldysh spectra; InP; electroreflectance spectra; excited state; field-induced wave function; optically inactive surface layer; photoexcitation; static electric fields; surface effects; surface electric fields; surface space-charge region; Acceleration; Electrodes; Erbium; Gold; Indium phosphide; Optical attenuators; Optical surface waves; Radio frequency; Temperature; Voltage;
Conference_Titel :
Indium Phosphide and Related Materials, 2001. IPRM. IEEE International Conference On
Conference_Location :
Nara
Print_ISBN :
0-7803-6700-6
DOI :
10.1109/ICIPRM.2001.929121
