title: Tabletop single-shot extreme ultraviolet Fourier transform holography of an extended object.
abstract: We demonstrate single and multi-shot Fourier transform holography with the use of a tabletop extreme ultraviolet laser. The reference wave was produced by a Fresnel zone plate with a central opening that allowed the incident beam to illuminate the sample directly. The high reference wave intensity allows for larger objects to be imaged compared to mask-based lensless Fourier transform holography techniques. We obtain a spatial resolution of 169 nm from a single laser pulse and a resolution of 128 nm from an accumulation of 20 laser pulses for an object ~11x11μm(2) in size. This experiment utilized a tabletop extreme ultraviolet laser that produces a highly coherent ~1.2 ns laser pulse at 46.9 nm wavelength.
authors.affiliation: Engineering Research Center for Extreme Ultraviolet Science and Technology, and Electrical and Computer Engineering Department, Colorado State University, Fort Collins, Colorado 80523, USA. malm@rams.colostate.edu
authors.forename: Erik B
authors.initials: EB
authors.lastname: Malm
authors.forename: Nils C
authors.initials: NC
authors.lastname: Monserud
authors.forename: Christopher G
authors.initials: CG
authors.lastname: Brown
authors.forename: Przemyslaw W
authors.initials: PW
authors.lastname: Wachulak
authors.forename: Huiwen
authors.initials: H
authors.lastname: Xu
authors.forename: Ganesh
authors.initials: G
authors.lastname: Balakrishnan
authors.forename: Weilun
authors.initials: W
authors.lastname: Chao
authors.forename: Erik
authors.initials: E
authors.lastname: Anderson
authors.forename: Mario C
authors.initials: MC
authors.lastname: Marconi
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D005583:Fourier Analysis; D006696:Holography / Q000295:instrumentation*; D021621:Imaging, Three-Dimensional / Q000295:instrumentation*; D007834:Lasers; D012031:Refractometry / Q000295:instrumentation*; D014466:Ultraviolet Rays