Electron intersubband transitions to 0.8 eV (1.55 μm) in InGaAs/AlAs single quantum wells An intersubband transition energy as high as 0.8 eV (i.e., a wavelength as short as 1.55 μm) is observed with transverse magnetic field polarization ... JH Smet,LH Peng,Y Hirayama,... - 《Applie...