N. Shimizu et al., PICOSECOND-SWITCHING TIME OF IN0.53GA0.47AS ALAS RESONANT-TUNNELING DIODES MEASURED BY ELECTROOPTIC SAMPLING TECHNIQUE/, IEEE electron device letters, 16(6), 1995, pp. 262-264
To demonstrate picosecond-switching time for In0.53Ga0.47As/AlAs reson
ant-tunneling diodes (RTD's), we fabricated RTD's with various barrier
widths and measured their switching times using electro-optic samplin
g technique specially arranged for RTD's with high current density. Fo
r an RTD having the barrier width of 1.4 nm with the peak current dens
ity of 4.5 x 10(5) A/cm(2) and peak-to-valley ratio of 3.9, the switch
ing time of 2.2 ps has been observed.