Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Soft-x-ray interferometer for measuring the refractive index of materials

Not Accessible

Your library or personal account may give you access

Abstract

We have designed and built a soft-x-ray interferometer to test the possibility of a direct measurement of the refractive index (i.e., the real part of the complex index) of materials in the soft-x-ray range. The interferometer is based on the Fresnel bimirror setup. It works near the zero path difference and requires only little spatial coherence. Plane mirrors at grazing incidence are the only optical elements. Interference fringes have been recorded at 4.8 nm, near the K edge of carbon. An index value could be obtained by measuring the fringe pattern shift between two such records, one without and one with a sample in one optical path. An estimation of the noise-limited accuracy in such an index determination shows that a few parts in 10−6 can be anticipated.

© 1993 Optical Society of America

Full Article  |  PDF Article
More Like This
Direct index of refraction measurements at extreme-ultraviolet and soft-x-ray wavelengths

Kristine Rosfjord, Chang Chang, Ryan Miyakawa, Holly Barth, and David Attwood
Appl. Opt. 45(8) 1730-1736 (2006)

Direct measurement of the x-ray refractive index by Fresnel diffraction at a transparent edge

C. W. Gayer, D. Hemmers, C. Stelzmann, and G. Pretzler
Opt. Lett. 38(9) 1563-1565 (2013)

Soft-x-ray interferometer for single-shot laser linewidth measurements

Juan L. A. Chilla, Jorge J. Rocca, Oscar E. Martinez, and Mario C. Marconi
Opt. Lett. 21(13) 955-957 (1996)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved