Sawtooth grating-assisted phase-matching

Pavel Sidorenko*, Maxim Kozlov, Alon Bahabad, Tenio Popmintchev, Margaret Murnane, Henry Kapteyn, Oren Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


We show that a sawtooth phase-modulation is the optimal profile for grating assisted phase matching (GAPM). Perfect (sharp) sawtooth modulation fully corrects the phase-mismatch, exhibiting conversion equal to conventional phase matching, while smoothened, approximate sawtooth structures are more efficient than sinusoidal or square GAPM modulations that were previously studied. As an example, we demonstrate numerically optically-induced sawtooth GAPM for high harmonic generation. Sawtooth GAPM is the most efficient method for increasing the conversion efficiency of high harmonic generation through quasi-phase-matching, with an ultimate efficiency that closely matches the ideal phase-matching case.

Original languageEnglish
Pages (from-to)22686-22692
Number of pages7
JournalOptics Express
Issue number22
StatePublished - 25 Oct 2010
Externally publishedYes


Dive into the research topics of 'Sawtooth grating-assisted phase-matching'. Together they form a unique fingerprint.

Cite this