Enhancing the locality of optical interrogation with photonic-crystal fibers

被引：9

作者：

Doronina-Amitonova, Lyubov V. ^{[1
,2
]}

Fedotov, Il'ya V. ^{[1
]}

Ivashkina, Olga I. ^{[2
,3
]}

Zots, Marina A. ^{[2
,3
]}

Fedotov, Andrei B. ^{[1
,2
]}

Anokhin, Konstantin V. ^{[2
,3
]}

Zheltikov, Aleksei M. ^{[1
,2
,4
]}

机构：

[1] Moscow MV Lomonosov State Univ, Ctr Int Laser, Russian Quantum Ctr, Dept Phys, Moscow 117234, Russia

[2] Kurchatov Natl Res Ctr, Dept Neurosci, Moscow, Russia

[3] Russian Acad Med Sci, PK Anokhin Inst Normal Physiol, Moscow, Russia

[4] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 02期

基金：

俄罗斯基础研究基金会;

关键词：

SUPERCONTINUUM GENERATION; FLUORESCENCE MICROSCOPY; SOLITON OUTPUT; PULSES; LIGHT; RAMAN;

D O I：

10.1063/1.4727901

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Small-core photonic-crystal fibers (PCFs) are shown to enhance the locality of optical interrogation in fiber-probe-based imaging. We demonstrate that, in a typical fluorescence imaging experiment, the longitudinal dimension of the interrogated region closely follows the a(m) tan(-1) theta(d) scaling with the effective mode radius a(m) and the beam-divergence angle theta(d). The confinement of optical interrogation provided by small-core, high-index-step PCF probes is high enough to enable interrogation of individual neurons in a typical brain imaging experiment. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4727901]

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页数：4

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