Abstract

The complex-valued index of refraction of germanium in the extreme ultraviolet (XUV) is measured by multi-angle reflectance of synchrotron radiation. The resulting index of refraction is higher resolution than previously measured values. It reveals new structures attributed to transitions from the 3d-core orbitals to the Σ5,2c and the X5,2c conduction bands. Additionally, it is shown that the problem of total external reflection, which renders multi-angle reflectance measurements insensitive to the complex-valued refractive index at grazing incidence, can be overcome by employing measurements at angles of incidence away from the critical angle.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Optical Constants of Germanium in the Region of the M4,5 Edge*

B. Feuerbacher, M. Skibowski, R. P. Godwin, and T. Sasaki
J. Opt. Soc. Am. 58(11) 1434-1440 (1968)

Fine structures in refractive index of sapphire at the LII,III absorption edge of aluminum determined by soft x-ray resonant reflectivity

Arijeet Das, Rajkumar K. Gupta, Mohammed H. Modi, Chandrachur Mukherjee, Sanjay K. Rai, Aniruddha Bose, Tapas Ganguli, Satish C. Joshi, Gyan S. Lodha, and Sudip K. Deb
Appl. Opt. 51(30) 7402-7410 (2012)

Simultaneous retrieval of the complex refractive index and particle size distribution

Yatao Ren, Hong Qi, Qin Chen, Liming Ruan, and Heping Tan
Opt. Express 23(15) 19328-19337 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (4)

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

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

Tables (1)

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

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

Equations (2)

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

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

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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