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Sub-Nanometer Resolution over Several Microns Range with Real-Time Dual- Wavelength Digital Holographic Microscopy

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Near-field imaging

Libo Yu

Bloch surface waves (BSWs) are surface electromagnetic waves excited at the interface between a truncated periodic dielectric multilayer and a surrounding medium. This particular solution to the Maxwell equations in stratified media has been known since th ...

EPFL2013

Submicron hollow spot generation by solid immersion lens and structured illumination

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We report on the experimental and numerical demonstration of immersed submicron-size hollow focused spots, generated by structuring the polarization state of an incident light beam impinging on a micro-size solid immersion lens (μ-SIL) made of SiO2. Such s ...

Institute of Physics (IoP) and Deutsche Physikalische Gesellschaft2012

Optical characterization of subwavelength-scale solid immersion lenses

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We present the fabrication and optical characterization of nano-scale solid immersion lenses (nano-SILs) with sizes down to a subwavelength range. Submicron-scale cylinders fabricated by electron-beam lithography (EBL) are thermally reflowed to form a sphe ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012

Subwavelength-size solid immersion lens

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

We report on the fabrication and characterization of nanoscale solid immersion lenses (nano-SILs) with sizes down to a subwavelength range. Submicrometer-scale cylinders fabricated by electron-beam lithography are thermally reflowed to form a spherical sha ...

2011

Near Field Optical Microscopy Imaging with a Free Electron Laser in the 1-10 Micron Spectral Range: Overview and Perspectives

Giorgio Margaritondo

The need to image objects on increasingly finer scales and spatially localized specific molecules can be met by the combination of infrared, visible and Raman spectroscopy with scanning near-field microscopy, giving rise to a powerful nanospectroscopic too ...

2011

Three-dimensional nano-localization of single fluorescent emitters

Theo Lasser, Iwan Märki, François Aguet, Stefan Geissbühler, Noelia Laura Bocchio

We present a combination of self-interference microscopy with lateral super-resolution microscopy and introduce a novel approach for localizing a single nano-emitter to within a few nanometers in all three dimensions over a large axial range. We demonstrat ...

Optical Society of America2010

Fluorescence correlation spectroscopy with sub-diffraction-limited resolution using near-field optical probes

Dusan Vobornik

We report fluorescence correlation spectroscopy (FCS) measurements using near-field scanning optical microscopy (NSOM) probes to produce a sub-diffraction-limited observation area. An order of magnitude reduction in the area compared to confocal FCS has be ...

American Institute of Physics2008

Tunable nanowire nonlinear optical probe

Aleksandra Radenovic

One crucial challenge for subwavelength optics has been the development of a tunable source of coherent laser radiation for use in the physical, information and biological sciences that is stable at room temperature and physiological conditions. Current ad ...

2007

Longitudinally polarized fields in near-field imaging systems

The evolution path of nanotechnologies moves through the domain of microscopy. Among all the kinds of imaging tools available today, optical imaging systems are of primary importance. When using optical imaging systems, we take profit of the information re ...

Institut de Microtechnique, Université de Neuchâtel2006

Very high resolution near-field chemical imaging using an infrared free electron laser

Giorgio Margaritondo

High resolution infrared imaging of thin films and biological systems is one of the most challenging experimental problems in contemporary science and technology. In this work, we have for the first time successfully tested a novel high resolution approach ...

2002