On the Field-Induced Infra-Red Absorption of GaAs

Key Points

• Electro-absorption varies with the applied electric field direction, influencing phonon absorption behavior.
• Eigen-values and eigen-vectors were computed under an external field aligned along the [001] direction.
• Field-induced effects on one- and two-phonon absorption were analyzed, showing dependence on radiation polarization.
• Implications highlight understanding of gallium arsenide’s optical properties under varying electric fields.