Abstract
The discovery of the extraordinary transmission phenomena has initiated an intense study
of the interaction of light with subwavelength holes. In this thesis the dynamic and local
properties of light interacting with subwavelength holes are investigated. First of all the
role of hole shape on the propagation of femtosecond pulses through hole arrays and the
nonlinear second harmonic generated is investigated. It is found that near the cutoff of a
hole a maximum of pulse delay is found. Furthermore a larger delay leads to a larger
amount of second harmonic.
The local properties of light interacting with subwavelength holes are investigated with a
new technique that employs the radiation that is generated when an electron travels
trough the interface between two media with a different dielectric constant. This
radiation- transition radiation- contains information on the optical environment. The high
resolution of a focused beam of electrons leads thus to a ultra high resolution tool to
obtain optical information. The technique is employed for the study of subwavelength
holes, investigating the role of hole shape, the effects of polarization and the effects
occurring in multiple holes.
Original language | English |
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Qualification | Doctor of Philosophy |
Awarding Institution |
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Supervisors/Advisors |
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Award date | 8 May 2009 |
Place of Publication | Enschede |
Publisher | |
Print ISBNs | 978-90-365-2809-2 |
DOIs | |
Publication status | Published - 8 May 2009 |
Keywords
- IR-61095