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General Transmission and Reflection Mode Microscopy Based on Coherent Diffractive Imaging with High Harmonic Illumination

Event Details

Event Dates: 

Thursday, June 19, 2014 - 10:00am

Seminar Location: 

  • JILA X317

Speaker Name(s): 

Matt Seaberg

Speaker Affiliation(s): 

JILA (Kapteyn-Murnane Research Group)
Seminar Type/Subject

Event Details & Abstract: 

A new scientific frontier exists at the intersection of the nanoscale and the ultrafast. In order to explore this frontier, new tools with unique capabilities for imaging with nanometer spatial and femtosecond temporal resolution are critical. This thesis describes the development of such a tool, combining coherent diffractive imaging (CDI) with an extreme ultraviolet (EUV) high harmonic generation (HHG) light source to produce a compact, accessible, high-resolution microscope. Here, this microscope is used to demonstrate 22 nm resolution in transmission, a record for any full-field tabletop light-based microscope. Further, this microscope is used to demonstrate the most general reflection mode implementation of CDI to date, enabling image reconstruction at any angle of incidence. Finally, the route towards dynamic femtosecond imaging of complex nanosystems is outlined, which includes potential for simultaneous hyperspectral EUV imaging across multiple absorption edges.

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