PMID- 17700797 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20071030 LR - 20190703 IS - 0146-9592 (Print) IS - 0146-9592 (Linking) VI - 32 IP - 16 DP - 2007 Aug 15 TI - Few-optical-cycle pulses in the near-infrared from a noncollinear optical parametric amplifier. PG - 2396-8 AB - We extend the concept of broadband phase matching in a noncollinear optical parametric amplifier (NOPA) to the near-IR. In an 800 nm pumped NOPA using periodically poled stoichiometric lithium tantalate, we amplify a spectrum spanning the 1.1-1.7 microm range and corresponding to two optical cycles of the carrier wavelength. A limited portion of the spectrum is compressed by a prism pair down to 16 fs. FAU - Cirmi, G AU - Cirmi G AD - National Laboratory for Ultrafast and Ultraintense Optical Science-INFM-CNR, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milan, Italy. FAU - Brida, D AU - Brida D FAU - Manzoni, C AU - Manzoni C FAU - Marangoni, M AU - Marangoni M FAU - De Silvestri, S AU - De Silvestri S FAU - Cerullo, G AU - Cerullo G LA - eng PT - Journal Article PL - United States TA - Opt Lett JT - Optics letters JID - 7708433 EDAT- 2007/08/19 09:00 MHDA- 2007/08/19 09:01 CRDT- 2007/08/19 09:00 PHST- 2007/08/19 09:00 [pubmed] PHST- 2007/08/19 09:01 [medline] PHST- 2007/08/19 09:00 [entrez] AID - 140585 [pii] AID - 10.1364/ol.32.002396 [doi] PST - ppublish SO - Opt Lett. 2007 Aug 15;32(16):2396-8. doi: 10.1364/ol.32.002396.