Reduced damage in electron microscopy by using interaction-free measurement and conditional reillumination
Reduced damage in electron microscopy by using interaction-free measurement and conditional reillumination
复制标题
通过使用无相互作用测量和条件再照明减少电子显微镜损伤
DOI:
10.1103/physreva.99.063809
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发表时间:
2019
影响因子:
2.9
通讯作者:
Goyal, Vivek K.
中科院分区:
文献类型:
--
作者:
Agarwal, Akshay;Berggren, Karl K.;van Staaden, Yuri J.;Goyal, Vivek K.
Interaction-free measurement (IFM) has been proposed as a means of high-resolution, low-damage imaging of radiation-sensitive samples, such as biomolecules and proteins. The basic setup for IFM is a Mach-Zehnder interferometer, and recent progress in nanofabricated electron-diffraction gratings has made it possible to incorporate a Mach-Zehnder interferometer in a transmission electron microscope (TEM). Therefore, the limits of performance of IFM with such an interferometer and a shot-noise limited electron source (such as that in a TEM) are of interest. In this paper, we compare the error probability and sample damage for ideal IFM and classical imaging schemes, through theoretical analysis and numerical simulation. We consider a sample that is either completely transparent or completely opaque at each pixel. In our analysis, we also evaluate the impact of an additional detector for scattered electrons. Inclusion of the scattering detector results in reduction of error by up to an order of magnitude, for both IFM and classical schemes. We also investigate a sample reillumination scheme based on updating priors after each round of illumination and find that this scheme further reduces error. Implementation of these methods is likely achievable with existing instrumentation and would result in improved resolution in low-dose electron microscopy.
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影响因子:
4
作者:
H. Okamoto
通讯作者:
H. Okamoto
DOI:
10.1088/1361-6463/aabc47
发表时间:
2018
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
作者:
F. Yasin;Tyler R. Harvey;J. Chess;J. Pierce;B. McMorran
通讯作者:
B. McMorran
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
Gunther Krenn;J. Summhammer;K. Svozil
通讯作者:
K. Svozil
影响因子:
2.2
作者:
Krause, Florian F.;Schowalter, Marco;Rosenauer, Andreas
通讯作者:
Rosenauer, Andreas
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
P. Facchi;Z. Hradil;G. Krenn;S. Pascazio;J. Řeháček
通讯作者:
J. Řeháček