Interferometric measurement of far infrared plasmons via resonant homodyne mixing.

Autor: Dyer GC, Aizin GR, Allen SJ, Grine AD, Bethke D, Reno JL, Shaner EA
Jazyk: angličtina
Zdroj: Optics express [Opt Express] 2014 Jun 30; Vol. 22 (13), pp. 16254-66.
DOI: 10.1364/OE.22.016254
Abstrakt: We present an electrically tunable terahertz two dimensional plasmonic interferometer with an integrated detection element that down converts the terahertz fields to a DC signal. The integrated detector utilizes a resonant plasmonic homodyne mixing mechanism that measures the component of the plasma waves in-phase with an excitation field functioning as the local oscillator. Plasmonic interferometers with two independently tuned paths are studied. These devices demonstrate a means for developing a spectrometer-on-a-chip where the tuning of electrical length plays a role analogous to that of physical path length in macroscopic spectroscopic tools such as Fourier transform interferometers.
Databáze: MEDLINE