3 papers
physics.app-ph2020★ 6 cited
RF pulse shaping for gated electron mirrors
Brannon B. Klopfer, Stewart A. Koppell, Adam J. Bowman +2
We present the design and prototype of a switchable electron mirror, along with a technique for driving it with a flat-top pulse. We employ a general technique for electronic pulse…
physics.app-ph2019
Design for a 10 KeV Multi-Pass Transmission Electron Microscope
Stewart A. Koppell, Marian Mankos, Adam J. Bowman +4
Multi-pass transmission electron microscopy (MPTEM) has been proposed as a way to reduce damage to radiation-sensitive materials. For the field of cryo-electron microscopy (cryo-EM…
physics.optics2018
Efficient wide-field FLIM
Adam J. Bowman, Brannon B. Klopfer, Thomas Juffmann +1
Nanosecond temporal resolution enables new methods for wide-field imaging like time-of-flight, gated detection, and fluorescence lifetime. The optical efficiency of existing approa…