PMID- 26274667
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20151023
LR  - 20181023
IS  - 1539-4794 (Electronic)
IS  - 0146-9592 (Linking)
VI  - 40
IP  - 16
DP  - 2015 Aug 15
TI  - High-energy noncollinear optical parametric amplifier producing 4  fs pulses in 
      the visible seeded by a gas-phase filament.
PG  - 3814-7
LID - 10.1364/OL.40.003814 [doi]
AB  - We report on the design and characterization of a short-pulse-pumped, 
      single-stage noncollinear optical parametric amplifier (NOPA) that achieves high 
      pulse energies in the few-cycle pulse regime. Optimal pulse-front tilting and 
      temporal compression of the short (35 fs) pump pulse are achieved using a 4f 
      grating compressor, while spatial chirp at the NOPA crystal is eliminated with 
      proper imaging using a pair of reflective telescopes. Gas-phase filamentation in 
      an open-ended argon-filled cell provides a bright, stable seed source with little 
      residual chirp that is suitable for temporal overlap with the short pump pulse 
      without dispersion precompensation. Two seeding geometries are explored, and 
      pulses as short as 3.5 fs are obtained by seeding with the entire filament 
      bandwidth. Fourier-transform-limited 4 fs pulses are obtained by filtering the IR 
      portion of the spectrum.
FAU - Odhner, Johanan H
AU  - Odhner JH
FAU - Levis, Robert J
AU  - Levis RJ
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Lett
JT  - Optics letters
JID - 7708433
EDAT- 2015/08/15 06:00
MHDA- 2015/08/15 06:01
CRDT- 2015/08/15 06:00
PHST- 2015/08/15 06:00 [entrez]
PHST- 2015/08/15 06:00 [pubmed]
PHST- 2015/08/15 06:01 [medline]
AID - 323847 [pii]
AID - 10.1364/OL.40.003814 [doi]
PST - ppublish
SO  - Opt Lett. 2015 Aug 15;40(16):3814-7. doi: 10.1364/OL.40.003814.