Enhanced interferometric detection in two-dimensional spectroscopy with a Sagnac interferometer Courtney, Trevor L. ; Park, Samuel D. ; Hill, Robert J. ; Cho, Byungmoon ; Jonas, David M. Abstract Publication: Optics Letters Pub Date: February 2014 DOI: 10.1364/OL.39.000513 Bibcode: 2014OptL...39..513C