title: High-resolution spectroscopy using a frequency magnifier.
abstract: We experimentally demonstrate a spectral magnifier using an imaging system with two time-lenses based on four-wave mixing in a Si nanowaveguide. We achieve a magnification factor of 105 with a frequency resolution of 1 GHz. The system offers potential as a tool for single-shot, high resolution spectral measurements.
authors.affiliation: School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA.
authors.forename: Yoshitomo
authors.initials: Y
authors.lastname: Okawachi
authors.forename: Reza
authors.initials: R
authors.lastname: Salem
authors.forename: Mark A
authors.initials: MA
authors.lastname: Foster
authors.forename: Amy C
authors.initials: AC
authors.lastname: Turner-Foster
authors.forename: Michal
authors.initials: M
authors.lastname: Lipson
authors.forename: Alexander L
authors.initials: AL
authors.lastname: Gaeta