Nanoscale imaging and optimization of a compact "water window" SXR microscope

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F15%3A00374693" target="_blank" >RIV/68407700:21340/15:00374693 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1117/12.2181436" target="_blank" >https://doi.org/10.1117/12.2181436</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2181436" target="_blank" >10.1117/12.2181436</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanoscale imaging and optimization of a compact "water window" SXR microscope

Popis výsledku v původním jazyce

The wavelength diffraction limit, described by the Rayleigh criterion, can be overcome if short wavelength radiations are employed, thus it is possible to resolve smaller features by the use of radiation in the extreme ultraviolet (EUV) and soft X-ray (SXR) spectral ranges. In particular way, radiation from the "water window" spectral range, which extends between K-absorption edges of carbon and oxygen (280 divided by 540 eV), could be used in order to obtain high-contrast biological imaging. Laser-plasma double stream gas puff target source is suitable for SXR microscopy in the "water window" spectral range, which recently allowed to develop a system, operating at He-like nitrogen spectral line lambda=2.88 nm, which permits to obtain images with half-pitch spatial resolution of similar to 60 nm, exposure time as low as a few seconds and represents an important alternative for high resolution imaging for biomedical applications, material science and nanotechnology using a very compact laser source. The goal of measurements, presented herein, is to show SXR images of various biological samples, proving high contrast in the "water window" and characterize in more detail such compact microscopy system, based on a laser plasma source with a double stream gas puff target and a Fresnel zone plate (FZP) objective. The influence of various acquisition parameters on the quality of the obtained SXR images, expressed in terms of a signal-to-noise (SNR) will be demonstrated. Moreover, because the measurements are performed on SXR images, similar measurements might be performed as a benchmark in order to characterize different imaging systems as well.

Název v anglickém jazyce

Nanoscale imaging and optimization of a compact "water window" SXR microscope

Popis výsledku anglicky

The wavelength diffraction limit, described by the Rayleigh criterion, can be overcome if short wavelength radiations are employed, thus it is possible to resolve smaller features by the use of radiation in the extreme ultraviolet (EUV) and soft X-ray (SXR) spectral ranges. In particular way, radiation from the "water window" spectral range, which extends between K-absorption edges of carbon and oxygen (280 divided by 540 eV), could be used in order to obtain high-contrast biological imaging. Laser-plasma double stream gas puff target source is suitable for SXR microscopy in the "water window" spectral range, which recently allowed to develop a system, operating at He-like nitrogen spectral line lambda=2.88 nm, which permits to obtain images with half-pitch spatial resolution of similar to 60 nm, exposure time as low as a few seconds and represents an important alternative for high resolution imaging for biomedical applications, material science and nanotechnology using a very compact laser source. The goal of measurements, presented herein, is to show SXR images of various biological samples, proving high contrast in the "water window" and characterize in more detail such compact microscopy system, based on a laser plasma source with a double stream gas puff target and a Fresnel zone plate (FZP) objective. The influence of various acquisition parameters on the quality of the obtained SXR images, expressed in terms of a signal-to-noise (SNR) will be demonstrated. Moreover, because the measurements are performed on SXR images, similar measurements might be performed as a benchmark in order to characterize different imaging systems as well.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proc. SPIE 9510, EUV and X-ray Optics: Synergy between Laboratory and Space IV

ISBN

978-1-62841-631-2

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

11

Strana od-do

—

Název nakladatele

SPIE - The International Society for Optical Engineering

Místo vydání

Prague

Místo konání akce

Prague

Datum konání akce

13. 4. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000356859800019