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Hans Peter Herzig

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Related publications (110)

Page 5 of 6

Intensity and phase fields behind phase-shifting masks studied with high-resolution interference microscopy

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim, Ali Naqavi, Krishnaparvathy Puthankovilakam

We try to find out the details of how light fields behind the structures of photomasks develop in order to determine the best conditions and designs for proximity printing. The parameters that we use approach real situations like structure printing at prox ...

SPIE-Intl Soc Optical Eng2016

Multiple self-healing Bloch surface wave beams generated by a two-dimensional fraxicon

Hans Peter Herzig, Myun Sik Kim, Babak Vosoughi Lahijani

Nature Research2018

Coherence management in lithography printing systems

Hans Peter Herzig, Toralf Scharf, Johana Bernasconi

In proximity lithography, interference and diffraction effects arise when printing small features because of the proximity gap. Different techniques are used in order to control and take advantage of theses effects. In this paper, the focus is set on the M ...

Spie-Int Soc Optical Engineering2016

Surface micro-structuring of glassy carbon for precision glass molding of diffractive optical elements

Hans Peter Herzig, Toralf Scharf, Karin Prater

Glassy carbon is used nowadays for a variety of applications because of its mechanical strength, thermal stability and non-sticking adhesion properties. This makes it also a suitable candidate as mold material for precision compression molding of low and h ...

Spie-Int Soc Optical Engineering2014

High Quality Factor Confinement Of Bloch Surface Waves At Visible Wavelengths

Hans Peter Herzig, Nicolas Maxime André Descharmes, Babak Vosoughi Lahijani, Raphaël Barbey, Gaël David Osowiecki

We report the first experimental demonstration of high quality factor confinement of Bloch surface waves at visible wavelengths. The cavities consist of planar Fabry-Perot resonators that are fabricated on top of a Bloch surface supporting substrate. This ...

IEEE2018

Refraction and interference in micro- and nanostructure optical elements

Hans Peter Herzig, Toralf Scharf

2008

Single Mode Mid-infrared Waveguide for Evanescent Sensor Scheme in Liquids

Hans Peter Herzig, Vincent Paeder, Lubos Hvozdara, Yu-Chi Chang, Philip Wägli

A Si/Ge based, single mode, mid-infrared optical waveguide, is used as an evanescent sensor in liquid matrix. The selectivity is achieved by the use of quantum cascade lasers (QCLs) tuned to the maximum absorption of a given analyte. The cocaine detection ...

2011

Ultrathin waveguides for Bloch Surface Waves: near-field analysis of propagation and polarization

Olivier Martin, Hans Peter Herzig, Tristan Sfez, Libo Yu, Daniele Brunazzo

We demonstrate that an ultrathin ridge (< lambda/10) can guide Bloch surface waves in a dielectric multilayer. The propagation and polarization properties of the guided modes are investigated with a multi-heterodyne scanning near-field optical microscope. ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2010

Experimental demonstration of critical coupling of whispering gallery mode cavities on Bloch surface wave platform

Hans Peter Herzig, Myun Sik Kim, Richa Dubey, Babak Vosoughi Lahijani

We experimentally demonstrate critical coupling of whispering gallery mode (WGM) disk resonators implemented on a Bloch surface wave platform using scanning near-field optical microscopy. The studied structure is a 60 nm thick TiO 2 TiO2 WGM disk cavity (r ...

Optical Society of America2017

In-plane illuminated metallic annular aperture array for sensing application

Hans Peter Herzig, Armando Cosentino, Qing Tan

We propose here an application to sensing of annular aperture arrays (AAA). We theoretically investigate the optical properties of the reflective AAA device when illuminated in-plane. The cavity presents almost perfect absorption due to the waveguide mode ...

Optical Society of America2012

Light Extraction Enhancement in Scintillation Crystals Using Thin Film Coatings

Edoardo Charbon, Hans Peter Herzig, Claudio Bruschini, Francesco Gramuglia, Nicolas Maxime André Descharmes, Esteban Venialgo Araujo

2018

Nano-Thin 2D Axicon Generating Nondiffracting Surface Waves

Hans Peter Herzig, Myun Sik Kim, Elsie Barakat, Richa Dubey

We investigate nondiffracting surface waves. On top of the Bloch surface wave platform, a 60-nm-thick TiO2 isosceles triangle serves as a 2D axicon. Scanning near-field microscopy measurements verify nondiffracting surface beam properties. ...

Ieee2016

Fabrication and characterization of linear diffusers based on concave micro lens arrays

Nico de Rooij, Hans Peter Herzig, Toralf Scharf, Wilfried Noell, Roland Andreas Bitterli

We present a new approach of beam homogenizing elements based on a statistical array of concave cylindrical microlens arrays. Those elements are used to diffuse light in only one direction and can be employed together with fly’s eye condensers to generate ...

Optical Society of America2010

Silicon based micro-optical collimating element for mid-infrared Quantum Cascade Lasers

Hans Peter Herzig, Lubos Hvozdara, Pierre-Yves Baroni, Joab Di Francesco, Antoine Muller

A realization of a high numeric aperture, aspheric, silicon based collimating element for the mid-infrared (4 – 14 microns) Quantum Cascade Lasers, suited for mass production using computer driven reactive ion etching is presented. ...

2012

Planar multilayers as a versatile platform for nano-photonics

Olivier Martin, Hans Peter Herzig, Andrea Lovera, Tristan Sfez, Alessandro Angelini

2012

Observation of Axial Phase Evolution of Highly Confined Light Fields

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

Highly confined light fields demonstrate peculiar phase features, e.g., Gouy phase anomaly. Longitudinal-differential phase measurements by a high-resolution interference microscope are applied to investigate phase evolutions of confined light fields for p ...

2011

Measurements of light fields emerging from fine amplitude gratings

Hans Peter Herzig, Toralf Scharf, Myun Sik Kim

High resolution amplitude and phase of light fields emerging from a 2-μm-period amplitude grating are measured for different wavelengths. The amplitude gratings lead to highly periodic patterns caused by the Talbot effect. Such patterns reach periodicities ...

2010

Interferometric study on Gouy phase anomaly of microlens array

Hans Peter Herzig, Toralf Scharf, Wilfried Noell, Myun Sik Kim

We investigate the Gouy phase anomaly of light in the focus of refractive plano-convex microlens arrays by using longitudinal-differential (LD) interferometry and a finite-difference time-domain (FDTD) simulation. We put emphasis on determining the amount ...

Spie-Int Soc Optical Engineering2015

Field of view extension using satellite pinhole cameras

Hans Peter Herzig, Toralf Scharf

An approach to extend the field of view of a miniaturised imaging system is introduced. This innovative approach uses multiple optical systems working in parallel and image post-processing. As an example, a module consisting of a central single micro-lens ...

2010

Fabrication of slot waveguide cavity for sensing application

Hans Peter Herzig, Armando Cosentino, Qing Tan

The fabrication of a slot waveguide cavity oriented to sensing application is demonstrated. The choice of materials and the development of the process flow steps, including E-beam lithography (EBL) and metal lift-off of a single thin layer, are illustrated ...

2010