10.1364/OE.2.000314.m003 T. B. Mitchell T. B. Mitchell J. J. Bollinger J. J. Bollinger X.-P. Huang X.-P. Huang W. M. Itano W. M. Itano Media 3: Doppler imaging of plasma modes in a Penning trap† Optica Publishing Group 1998 Doppler Penning media oe plasma modes trap Optics Express imaging 13 April 1998 1998-04-13 00:00:00 Media https://opticapublishing.figshare.com/articles/media/Media_3_Doppler_imaging_of_plasma_modes_in_a_Penning_trap_/4943822 Originally published in Optics Express on 13 April 1998 (oe-2-8-314)