دورية أكاديمية
k-space imaging of the eigenmodes of sharp gold tapers for scanning near-field optical microscopy.
| العنوان: | k-space imaging of the eigenmodes of sharp gold tapers for scanning near-field optical microscopy. |
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| المؤلفون: | Esmann M; Institut für Physik, Carl von Ossietzky Universität, 26129 Oldenburg, Germany ; Center of Interface Science, Carl von Ossietzky Universität, 26129 Oldenburg, Germany., Becker SF, da Cunha BB, Brauer JH, Vogelgesang R, Groß P, Lienau C |
| المصدر: | Beilstein journal of nanotechnology [Beilstein J Nanotechnol] 2013 Oct 02; Vol. 4, pp. 603-10. Date of Electronic Publication: 2013 Oct 02 (Print Publication: 2013). |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Beilstein-Institut zur Förderung der Chemischen Wissenschaften Country of Publication: Germany NLM ID: 101551563 Publication Model: eCollection Cited Medium: Print ISSN: 2190-4286 (Print) Linking ISSN: 21904286 NLM ISO Abbreviation: Beilstein J Nanotechnol Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Original Publication: Frankfurt am Main : Beilstein-Institut zur Förderung der Chemischen Wissenschaften, 2010, ©2010- |
| مستخلص: | We investigate the radiation patterns of sharp conical gold tapers, which were designed as adiabatic nanofocusing probes for scanning near-field optical microscopy (SNOM). Field calculations show that only the lowest order eigenmode of such a taper can reach the very apex and thus induce the generation of strongly enhanced near-field signals. Higher-order modes are coupled into the far field at finite distances from the apex. Here, we demonstrate experimentally how to distinguish and separate between the lowest and higher-order eigenmodes of such a metallic taper by filtering in the spatial frequency domain. Our approach has the potential to considerably improve the signal-to-background ratio in spectroscopic experiments at the nanoscale. |
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| فهرسة مساهمة: | Keywords: Fourier optics; adiabatic nanofocusing; metallic wire modes; plasmonics; scanning near-field optical microscopy (SNOM) |
| تواريخ الأحداث: | Date Created: 20131109 Date Completed: 20131108 Latest Revision: 20211021 |
| رمز التحديث: | 20231215 |
| مُعرف محوري في PubMed: | PMC3817685 |
| DOI: | 10.3762/bjnano.4.67 |
| PMID: | 24205454 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 2190-4286 |
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| DOI: | 10.3762/bjnano.4.67 |