Polarization-sensitive optical properties of metallic and semiconducting nanowires

Harry E. Ruda; Alexander Shik

doi:10.1117/12.644698

23 February 2006 Polarization-sensitive optical properties of metallic and semiconducting nanowires

Harry E. Ruda, Alexander Shik

Proceedings Volume 6099, Plasmonics in Biology and Medicine III; 60990L (2006) https://doi.org/10.1117/12.644698
Event: SPIE BiOS, 2006, San Jose, California, United States

Abstract

Polarization phenomena in the optical absorption and emission of metallic, semiconducting or composite nanowires are considered theoretically. Most nanowire-based structures are characterized by a dramatic difference in dielectric constant ε between the nanowire material and environment. Due to image forces caused by such ε mismatch in nanowire structures, coefficients of their absorption and emission become essentially different for light polarized parallel or perpendicular to the nanowire axis. As a result, the intensity and spectra of absorption, luminescence, luminescence excitation, and photoconductivity in nanowires or arrays of parallel nanowires are strongly polarization-sensitive. In light-emitting nanowire core-shell structures, the re-distribution of a.c. electric field caused by the image forces may result in essential enhancing of core luminescence in frequency regions corresponding to luminescence from the semiconducting core or when the frequency of optical excitation coincides to the frequency of the plasmon resonance in the metallic shell. Random nanowire arrays acquire some properties typical for nematic liquid crystals. In such arrays, the effect described above may result in "polarization memory", where polarization of luminescence is determined by the polarization of the exciting light.

Citation Download Citation

Harry E. Ruda and Alexander Shik "Polarization-sensitive optical properties of metallic and semiconducting nanowires", Proc. SPIE 6099, Plasmonics in Biology and Medicine III, 60990L (23 February 2006); https://doi.org/10.1117/12.644698

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available