Experimental study of near-field light collection efficiency of aperture fiber probe at near-infrared wavelengths

Nobuhiro Tsumori, Motoki Takahashi, Yoshiki Sakuma, Toshiharu Saiki

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We examined the near-field collection efficiency of near-infrared radiation for an aperture probe.We used InAs quantum dots as ideal point light sources with emission wavelengths ranging from 1.1 to 1:6 μm. We experimentally investigated the wavelength dependence of the collection efficiency and compared the results with computational simulations that modeled the actual probe structure. The observed degradation in the collection efficiency is attributed to the cutoff characteristics of the gold-clad tapered waveguide, which approaches an ideal conductor at near-infrared wavelengths.

Original languageEnglish
Pages (from-to)5710-5713
Number of pages4
JournalApplied Optics
Volume50
Issue number29
DOIs
Publication statusPublished - 2011 Oct 10

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near fields
apertures
Infrared radiation
Wavelength
fibers
Fibers
probes
wavelengths
near infrared radiation
Semiconductor quantum dots
Light sources
light sources
Waveguides
cut-off
conductors
Gold
quantum dots
gold
degradation
waveguides

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Experimental study of near-field light collection efficiency of aperture fiber probe at near-infrared wavelengths. / Tsumori, Nobuhiro; Takahashi, Motoki; Sakuma, Yoshiki; Saiki, Toshiharu.

In: Applied Optics, Vol. 50, No. 29, 10.10.2011, p. 5710-5713.

Research output: Contribution to journalArticle

Tsumori, Nobuhiro ; Takahashi, Motoki ; Sakuma, Yoshiki ; Saiki, Toshiharu. / Experimental study of near-field light collection efficiency of aperture fiber probe at near-infrared wavelengths. In: Applied Optics. 2011 ; Vol. 50, No. 29. pp. 5710-5713.
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