Ultrafast optical Kerr gate at 1 GHz repetition rate by focusing on bismuth borosilicate (BBS) glass
Year: 2026
Authors: Farrag A., Flatae AM., Haight-stott L.M., Iagatti A., Lapini A., Mtzncke D., Agio M.
Autors Affiliation: Univ Siegen, Lab Nano Opt, D-57072 Siegen, Germany; Alfred Univ, New York State Coll Ceram, Inamori Sch Engn, Alfred, NY 14802 USA; European Lab Non Linear Spect, I-50019 Sesto Fiorentino, FI, Italy; Consiglio Nazl Ric CNR, Ist Nazl Ott INO, I-50019 Sesto Fiorentino, FI, Italy; Univ Parma, Dipartimento Sci Chim Vita & Sostenibil Ambientale, I-43124 Parma, PR, Italy.
Abstract: The optical Kerr gating (OKG) technique is promising for its high efficiency, broad spectral range, and sub-picosecond temporal resolution, without phase-matching requirements. Traditionally, however, OKG setups have been limited by the need for millijoule-level pulse energies from complex amplifier systems, making them difficult to apply to single emitters. Here, we present an ultrafast OKG scheme using bismuth borosilicate (BBS) glass that operates at a 1 GHz repetition rate under focusing with low pulse energies (<1 nJ) and a gate-pulse peak intensity of similar to 1.20 GW/cm2. Achieving 175 fs temporal resolution, this microscopy-compatible platform leverages the high nonlinearity and sub-picosecond temporal resolution of BBS glass to enable investigation of ultrafast processes in single quantum emitters. Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Journal/Review: OPTICS EXPRESS
Volume: 34 (19) Pages from: 36703 to: 36714
More Information: University of Siegen; Deutsche Forschungsgemeinschaft (INST 221/118-1 FUGG, 410405168).KeyWords: Time-resolved Fluorescence; Up-conversion; Electronic-structure; Photon-emission; Femtosecond; Dynamics; Nonlinearities; Solvation; Shutter; SpectroscopyDOI: 10.1364/OE.606868
