Abstract

A novel method of ultrafast rotation of a ring-shaped optical lattice in the picosecond time region was proposed and demonstrated. Our ring-lattice generator was assembled by a pair of linearly chirped pulses with a time delay, a high-order birefringent retarder, and an axially symmetric polarization element. Using a mode-locked Ti:sapphire laser oscillator as a light source, stable two-, four-, and six-petaled ring-lattice rotations were demonstrated with the rotation periods of 1.6, 3.2, and 4.8 ps, respectively. Our method has the potential to open up a new technique to resonantly excite propagating quasi-particles together with their coherent enhancement.

© 2016 Optical Society of America

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Supplementary Material (2)

NameDescription
» Visualization 1: MP4 (279 KB)      Time-resolved SFG image of four-petaled ring lattice, described in the right column of Page 3.
» Visualization 2: MP4 (397 KB)      Time-resolved SFG image of six-petaled ring lattice, described in the right column of Page 3.

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