Authors

J. W. Cleary; W. H. Streyer; N. Nader; S. Vangala; I. Avrutsky; B. Claflin; J. Hendrickson; D. Wasserman; R. E. Peale; W. Buchwald;R. Soref

Comments

Authors: contact us about adding a copy of your work at [email protected]

Abbreviated Journal Title

Opt. Express

Keywords

DOPED SILICON; PHOTONICS; SILICIDES; METALS; Optics

Abstract

Platinum germanides (PtGe) were investigated for infrared plasmonic applications. Layers of Pt and Ge were deposited and annealed. X-ray diffraction identified PtGe2 and Pt2Ge3 phases, and x-ray photoelectron spectroscopy determined vertical atomic composition profiles for the films. Complex permittivity spectra were measured by ellipsometry over the 2 to 15 mu m wavelength range. Surface plasmon polariton (SPP) characteristics such as propagation length and field penetration depth were calculated. Photon-to-SPP couplers in the form of 1D lamellar gratings were fabricated and characterized in the range 9 - 10.5 mu m via wavelength-dependent specular reflection spectra for multiple angles of incidence. The observed resonances compare well with calculated spectra for SPP excitation on PtGe2. Platinum germanides are CMOS compatible and may serve as SPP hosts for on-chip mid-IR plasmonic components with tighter field confinement than noble-metal hosts.

Journal Title

Optics Express

Volume

23

Issue/Number

3

Publication Date

1-1-2015

Document Type

Article

Language

English

First Page

3316

Last Page

3326

WOS Identifier

WOS:000349688800147

ISSN

1094-4087

Download

Share

COinS
 

Accessibility Statement

This item was created or digitized prior to April 24, 2027, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.