抄録
Using the finite-difference time-domain method, we evaluated the performance of apertured near-field fiber probes with a double-tapered structure, which have exhibited, in recent experiments, a much higher collection efficiency of localized light in comparison with single-tapered probes. We clarified that this high collection efficiency could be attributed to the shortening of the cutoff region, and the efficient coupling to the guiding mode of the optical fiber. By reproducing the experimental results in terms of the spatial resolution and the collection efficiency as a function of the aperture diameter, our calculation was confirmed to be valid and useful for the design of probes in a variety of applications.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 2055-2058 |
| ページ数 | 4 |
| ジャーナル | IEICE Transactions on Electronics |
| 巻 | E85-C |
| 発行部数 | 12 SPEC. |
| 出版物ステータス | Published - 2002 12 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
これを引用
FDTD analysis of a near-field optical fiber probe with a double tapered structure. / Sawada, Keiji; Nakamura, Hiroaki; Kambe, Hirotomo; Saiki, Toshiharu.
：: IEICE Transactions on Electronics, 巻 E85-C, 番号 12 SPEC., 12.2002, p. 2055-2058.研究成果: Article
}
TY - JOUR
T1 - FDTD analysis of a near-field optical fiber probe with a double tapered structure
AU - Sawada, Keiji
AU - Nakamura, Hiroaki
AU - Kambe, Hirotomo
AU - Saiki, Toshiharu
PY - 2002/12
Y1 - 2002/12
N2 - Using the finite-difference time-domain method, we evaluated the performance of apertured near-field fiber probes with a double-tapered structure, which have exhibited, in recent experiments, a much higher collection efficiency of localized light in comparison with single-tapered probes. We clarified that this high collection efficiency could be attributed to the shortening of the cutoff region, and the efficient coupling to the guiding mode of the optical fiber. By reproducing the experimental results in terms of the spatial resolution and the collection efficiency as a function of the aperture diameter, our calculation was confirmed to be valid and useful for the design of probes in a variety of applications.
AB - Using the finite-difference time-domain method, we evaluated the performance of apertured near-field fiber probes with a double-tapered structure, which have exhibited, in recent experiments, a much higher collection efficiency of localized light in comparison with single-tapered probes. We clarified that this high collection efficiency could be attributed to the shortening of the cutoff region, and the efficient coupling to the guiding mode of the optical fiber. By reproducing the experimental results in terms of the spatial resolution and the collection efficiency as a function of the aperture diameter, our calculation was confirmed to be valid and useful for the design of probes in a variety of applications.
KW - Collection efficiency
KW - Double-tapered probe
KW - FDTD
KW - Near-field scanning optical microscopy
KW - Spatial resolution
UR - http://www.scopus.com/inward/record.url?scp=0036999213&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036999213&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0036999213
VL - E85-C
SP - 2055
EP - 2058
JO - IEICE Transactions on Electronics
JF - IEICE Transactions on Electronics
SN - 0916-8524
IS - 12 SPEC.
ER -