Plasmonic and dielectric metalenses for nanophotonic applications / M.Sc. Christian Schlickriede. Paderborn, 2021
Inhalt
- Contents
- 1 Introduction
- 2 From conventional bulky optical elements to metasurface optics
- 2.1 Refractive to diffractive optical elements in a ray optics picture
- 2.1.1 Refractive optical lens to focus a ray of light
- 2.1.2 Refractive and diffractive lens-like phase profiles
- 2.1.3 Conventional lens equation
- 2.2 Fundamental concepts to describe plasmonic metasurfaces
- 2.2.1 The dielectric function of the free electron gas
- 2.2.2 The polarization of light and the geometric Pancharatnam-Berry phase
- 2.3 Plasmonic metalens for linear image formation at infrared wavelength
- 2.4 The nonlinear lens in a ray optics picture
- 2.5 Conclusion
- 3 Nonlinear plasmonic metasurfaces for image formation and further applications
- 3.1 Introduction to nonlinear harmonic generation processes
- 3.2 Tailor nonlinear optical wavefront control
- 3.3 From linear to nonlinear plasmonic metalenses
- 3.4 Imaging through nonlinear plasmonic metalens using second harmonic generation
- 3.4.1 Nanofabrication of plasmonic metalens
- 3.4.2 Optical characterization
- 3.4.3 Second harmonic focusing with nonlinear plasmonic metalens
- 3.4.4 SHG imaging of real objects
- Experimental setup
- A short introduction to the beam propagation method in the nonlinear regime
- SHG image formation of an L-shaped aperture
- 3.4.5 Nonlinear plasmonic metalens as 'AND' logic gate
- 3.5 Further application possibilities for nonlinear plasmonic metasurfaces
- 3.6 Conclusion
- 4 The nonlinear image formation with nonlinear dielectric metasurfaces
- 4.1 Dielectric versus plasmonic metasurfaces and the paradigm shift in nonlinear optics
- 4.2 All dielectric nonlinear metalens for third-harmonic generation
- 4.2.1 Design concept
- 4.2.2 Nanofabrication of the dielectric nonlinear metalens
- 4.2.3 Optical characterization with third-harmonic diffraction efficiency
- 4.2.4 Focusing of Gaussian beams by a THG metalens
- 4.2.5 Derivation of nonlinear lens equation based on the imaging of a single Gaussian beam waist
- 4.3 Generalized Gaussian lens equation
- 4.4 Higher order nonlinear spatial correlations
- 4.4.1 TH imaging of multiple Gaussian beams interfering on the metalens
- 4.4.2 Experimental demonstration of TH imaging of two apertures
- 4.4.3 Experimental demonstration of TH imaging of three apertures
- 4.5 Conclusion
- 5 Linear metalenses for integration in optical tweezers
- 5.1 A short introduction to optical tweezers
- 5.2 Dielectric metasurfaces for integration in optical tweezers: Schematic Concept, Metasurface Design, and Nanofabrication
- 5.2.1 Schematic Concept
- 5.2.2 Rigorous Coupled Wave Analysis
- 5.2.3 Nanofabrication
- 5.2.4 Optical Characterization of the Metalens and Vortex Metalens
- 5.3 Metasurface enhanced optical tweezers for two-dimensional particle manipulation
- 5.3.1 Experimental Setup
- 5.3.2 Experimental Results and Discussions
- 5.3.3 Vortex Metalens for OAM transfer with a single tailored beam
- 5.4 Conclusion
- 6 Summery and Outlook
- Bibliography
- Appendix