Abstract
We report the compression of intense, carrier-envelope phase stable mid-IR pulses down to few-cycle duration using an optical filament. A filament in xenon gas is formed by using self-phase stabilized 330 μJ 55 fs pulses at 2 μm produced via difference-frequency generation in a Ti:sapphire-pumped optical parametric amplifier. The ultrabroadband 2 μm carrier-wavelength output is self-compressed below 3 optical cycles and has a 270 μJ pulse energy. The self-locked phase offset of the 2 μm difference-frequency field is preserved after filamentation. This is to our knowledge the first experimental realization of pulse compression in optical filaments at mid-IR wavelengths (λ >0.8 μm).
| Original language | English |
|---|---|
| Pages (from-to) | 868-870 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 32 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 1 Apr 2007 |
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