title: Diode-Pumped Organo-Lead Halide Perovskite Lasing in a Metal-Clad Distributed Feedback Resonator.
abstract: Organic-inorganic lead halide perovskite semiconductors have recently reignited the prospect of a tunable, solution-processed diode laser, which has the potential to impact a wide range of optoelectronic applications. Here, we demonstrate a metal-clad, second-order distributed feedback methylammonium lead iodide perovskite laser that marks a significant step toward this goal. Optically pumping this device with an InGaN diode laser at low temperature, we achieve lasing above a threshold pump intensity of 5 kW/cm(2) for durations up to ∼25 ns at repetition rates exceeding 2 MHz. We show that the lasing duration is not limited by thermal runaway and propose instead that lasing ceases under continuous pumping due to a photoinduced structural change in the perovskite that reduces the gain on a submicrosecond time scale. Our results indicate that the architecture demonstrated here could provide the foundation for electrically pumped lasing with a threshold current density Jth < 5 kA/cm(2) under sub-20 ns pulsed drive.
authors.affiliation: Department of Electrical Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
authors.forename: Yufei
authors.initials: Y
authors.lastname: Jia
authors.affiliation: Department of Electrical Engineering and Andlinger Center for Energy and the Environment, Princeton University , Princeton, New Jersey 08544, United States.
authors.forename: Ross A
authors.initials: RA
authors.lastname: Kerner
authors.affiliation: Department of Electrical Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
authors.forename: Alex J
authors.initials: AJ
authors.lastname: Grede
authors.affiliation: Department of Electrical Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
authors.forename: Alyssa N
authors.initials: AN
authors.lastname: Brigeman
authors.affiliation: Department of Electrical Engineering and Andlinger Center for Energy and the Environment, Princeton University , Princeton, New Jersey 08544, United States.
authors.forename: Barry P
authors.initials: BP
authors.lastname: Rand
authors.affiliation: Department of Electrical Engineering, The Pennsylvania State University , University Park, Pennsylvania 16802, United States.
authors.forename: Noel C
authors.initials: NC
authors.lastname: Giebink
keywords: Lead halide perovskite; diode laser; distributed feedback; laser