Picosecond rotation of a ring-shaped optical lattice by using a chirped vortex-pulse pair.
Opt Lett
; 41(19): 4597-4600, 2016 Oct 01.
Article
en En
| MEDLINE
| ID: mdl-27749890
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 Tisapphire 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.
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MEDLINE
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En
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Opt Lett
Año:
2016
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Article