Terahertz emission from indium oxide films grown on MgO substrates using sub-bandgap photon energy excitation

• Main Authors: Estacio, Elmer S., Que, Christopher T., Awitan, Fritz C. B., Bugante, Jan Issac, de Vera, Francesca Isabel, Azares, Jonathan, Afalla, Jessica, de Vero, Jeffrey, Somintac, Armando S., Sarmago, Roland V., Salvador, Arnel A., Yamamoto, Kohji, Tani, Masahiko
• Format: text
• Published: Animo Repository 2012
• Subjects: Terahertz technology; Thin films—Optical properties; Magnesium oxide; Physics
• Online Access: https://animorepository.dlsu.edu.ph/faculty_research/11902
• Institution: De La Salle University

Indium oxide (In2O3) films grown by thermal oxidation on MgO substrates were optically excited by femtosecond laser pulses having photon energy lower than the In2O3 bandgap. Terahertz (THz) pulse emission was observed using time domain spectroscopy. Results show that THz emission saturates at an exc...