What question did this study set out to answer?

To measure the subpicosecond optical response and dynamic changes in the complex refractive index of vanadium dioxide (VO2) thin films during a laser-driven semiconductor-to-metal phase transition.

September 19, 1994Applied Physics LettersOpen Access

Femtosecond laser excitation of the semiconductor-metal phase transition in VO2

View Full Paper

Ask AI

Bookmark

Authors

MBMichael F. BeckerFraunhofer USA ABA. B. BuckmanUniversity of Nebraska–Lincoln RWR. M. WalserThe University of Texas at Austin

Discussion

Member takes

Implication

Experimental spectroscopy demonstrates picosecond semiconductor-to-metal phase transitions in vanadium dioxide thin films, highlighting potential applications for ultrafast optical switching.

Key Points

To measure the subpicosecond optical response and dynamic changes in the complex refractive index of vanadium dioxide (VO2) thin films during a laser-driven semiconductor-to-metal phase transition.
Excited solid-state phase transitions in VO2 thin films using femtosecond laser pulses.
Performed time-resolved pump-probe optical transmission and reflection measurements at a wavelength of 780 nm.
Observed a predominantly prompt semiconductor-to-metal phase transition following femtosecond excitation.
Demonstrated that the optical properties of the high-temperature metallic phase are reached within 5 ps, facilitating ultrafast optical switching.

Cite This Study

Becker et al. (1994) studied this question.

synapsesocial.com/papers/69dbe01b7d378569a9836998 https://doi.org/10.1063/1.112974

View Full Paper

Ask AI

Bookmark

Implication

Experimental spectroscopy demonstrates picosecond semiconductor-to-metal phase transitions in vanadium dioxide thin films, highlighting potential applications for ultrafast optical switching.

Femtosecond laser excitation of the semiconductor-metal phase transition in VO2

Discussion

Member takes

Implication

Key Points

Cite This Study

Femtosecond laser excitation of the semiconductor-metal phase transition in VO2

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider