Abstract

The electric field change of a femtosecond mid-infrared (MIR) pulse reflected by a new type of Bragg mirror is directly measured by time-resolved cross-correlation spectroscopy. The refractive-index contrast of the plasma Bragg mirror is achieved by use of different doping levels of only one type of semiconductor material ($n^{+}$-doped GaAs and undoped GaAs). The direct measurement of the time dependence of the electric field of a reflected MIR pulse permits the observation of a noninstantaneous response of a Bragg mirror compared with a metallic surface, which is due to the penetration of the pulse into the multilayer structure.

© 2001 Optical Society of America

Controlled shaping of ultrafast electric field transients in the mid-infrared spectral range

F. Eickemeyer, R. A. Kaindl, M. Woerner, T. Elsaesser, and A. M. Weiner
Opt. Lett. 25(19) 1472-1474 (2000)

Conversion of high-power 15-fs visible pulses to the mid infrared

J.-P. Likforman, M. Mehendale, D. M. Villeneuve, M. Joffre, and P. B. Corkum
Opt. Lett. 26(2) 99-101 (2001)

Interrogation of fiber gratings by use of low-coherence spectral interferometry of noiselike pulses

Shay Keren and Moshe Horowitz
Opt. Lett. 26(6) 328-330 (2001)

Coherent broadband pulse shaping in the mid infrared

Nadia Belabas, Jean-Pierre Likforman, Lionel Canioni, Bruno Bousquet, and Manuel Joffre
Opt. Lett. 26(10) 743-745 (2001)

Design and fabrication of double-chirped mirrors

F. X. Kärtner, N. Matuschek, T. Schibli, U. Keller, H. A. Haus, C. Heine, R. Morf, V. Scheuer, M. Tilsch, and T. Tschudi
Opt. Lett. 22(11) 831-833 (1997)