公开(公告)号：US20220026339A1

公开(公告)日：2022-01-27

申请号：US17318608

申请日：2021-05-12

申请人： Becton, Dickinson and Company

发明人： An-Dien Nguyen ,  Waheed Amiri ,  David J. Gianduzzo

IPC分类号： G01N15/14 ,  G01J1/02

摘要： Methods for evaluating performance a diode laser are provided. In embodiments, methods include receiving a laser beam profile of a diode laser, determining first, second and third laser beam widths at first, second and third laser intensities, respectively, for the laser beam profile, computing a first ratio between the second and third laser beam widths, computing a second ratio between the first and second laser beam widths, evaluating laser performance based on the first and second ratios, and outputting a determination regarding the suitability of the laser for use in a flow cytometry setting. Devices for practicing the subject methods are also provided, and include first and second stages configured to receive a diode laser and beam profiler, respectively. Aspects of the invention further include flow cytometers incorporating a diode laser that has been evaluated by the subject method.

公开(公告)号：US11609176B2

公开(公告)日：2023-03-21

申请号：US17318608

申请日：2021-05-12

申请人： Becton, Dickinson and Company

发明人： An-Dien Nguyen ,  Waheed Amiri ,  David J. Gianduzzo

IPC分类号： G01N15/14 ,  G01J1/02 ,  G01N15/10

摘要： Methods for evaluating performance a diode laser are provided. In embodiments, methods include receiving a laser beam profile of a diode laser, determining first, second and third laser beam widths at first, second and third laser intensities, respectively, for the laser beam profile, computing a first ratio between the second and third laser beam widths, computing a second ratio between the first and second laser beam widths, evaluating laser performance based on the first and second ratios, and outputting a determination regarding the suitability of the laser for use in a flow cytometry setting. Devices for practicing the subject methods are also provided, and include first and second stages configured to receive a diode laser and beam profiler, respectively. Aspects of the invention further include flow cytometers incorporating a diode laser that has been evaluated by the subject method.