title: Development and characterization of high suppression and high étendue narrowband spectral filters.
abstract: The present work addresses critical issues in constructing high suppression, narrowband spectral filters in rare-earth-ion-doped crystals, mainly targeting the application of ultrasound optical tomography but is also applicable for areas such as quantum memories, self-filtering of laser frequencies, and other applications relying on high absorption in rare-earth-ion-doped crystals. The polarization of light transmitted through a highly absorbing crystal is experimentally analyzed. Additionally, an existing wave propagation method is used to simulate beam propagation through a spectral hole to study the high étendue requirements of ultrasound optical tomography.
authors.forename: Adam
authors.initials: A
authors.lastname: Kinos
authors.forename: Qian
authors.initials: Q
authors.lastname: Li
authors.forename: Lars
authors.initials: L
authors.lastname: Rippe
authors.forename: Stefan
authors.initials: S
authors.lastname: Kröll