Publication
Laser-based manufacturing of freeform glass micro-optics through topological transformation
Publications associées (56)
Stepwise Luneburg Lens for Bloch Surface Waves
Myun Sik Kim, Babak Vosoughi Lahijani
In order to enlarge the capability for in-plane manipulation of the Bloch surface wave (BSW), we investigate 2D gradient index (GRIN) optical components using a finite-difference time-domain (FDTD) numerical method. To ease difficulties in fabrication to a ...
2018Scaling effect and its impact on wavelength-scale microlenses
Hans Peter Herzig, Toralf Scharf, Myun Sik Kim
We revisit the scaling laws in micro-optical systems to highlight new phenomena arising beyond a conventional optical regime, especially when the size of the system approaches to the operational wavelength. Our goal is to visualize the impact of the scalin ...
Spie-Int Soc Optical Engineering2017Refraction limit of miniaturized optical systems: a ball-lens example
Hans Peter Herzig, Roland Andreas Bitterli, Toralf Scharf, Wilfried Noell, Myun Sik Kim
We study experimentally and theoretically the electromagnetic field in amplitude and phase behind ball-lenses across a wide range of diameters, ranging from a millimeter scale down to a micrometer. Based on the observation, we study the transition between ...
Optical Society of America2016Adamts18 deletion results in distinct developmental defects and provides a model for congenital disorders of lens, lung, and female reproductive tract development
Cathrin Brisken, Marian Caikovski, Alessandra Piersigilli, Dalya Ataca, Yakir Guri
The ADAMTS family comprises 19 secreted metalloproteinases that cleave extracellular matrix components and have diverse functions in numerous disease and physiological contexts. A number of them remain 'orphan' proteases, among them ADAMTS18, which has bee ...
Company Of Biologists Ltd2016Genius of Utopia
Seen through the ‘frankly eutopian’ lens of Patrick Geddes’ regional survey methods – encompassing both his pragmatic involvement with existing cities and his regional ambitions – this essay considers several practical interpretations of the term ‘genius’ ...
Franco Angeli2016Ultrafast All-Polymer Electrically Tunable Silicone Lenses
Herbert Shea, Samuel Rosset, Luc Maffli, Michele Ghilardi
Dielectric elastomer actuators (DEA) are smart lightweight flexible materials integrating actuation, sensing, and structural functions. The field of DEAs has been progressing rapidly, with actuation strains of over 300% reported, and many application conce ...
Wiley-Blackwell2015Organic-inorganic-hybrid-polymer microlens arrays with tailored optical characteristics and multi-focal properties
Jürgen Brugger, Victor Javier Cadarso Busto, Loïc Jacot-Descombes
Plano-convex microlens arrays of organic-inorganic polymers with tailored optical properties are presented. The fine-tuning of each microlens within an array is achieved by confining inkjet printed drops of the polymeric ink onto pre-patterned substrates. ...
Optical Society of America2015A Planar Feed for SOTM Ka-band Lens Antennas
Juan Ramon Mosig, Marc Esquius Morote, Maria Garcia Vigueras, Joana Rita Alves dos Santos Silva
Ka-band satellite technology has been drawing growing interest from public transportation industry to military applications, due to its advantages of higher speed links, smaller terminals and reduced costs. These well-recognized characteristics have also b ...
2015Standing wave integrated Fourier transform spectrometer for imaging spectrometry in the near infrared
Hans Peter Herzig, Gaël David Osowiecki, Irène Antoinette Philipoussis, Mohammadreza Madi, Toralf Scharf
We show the miniaturization and parallelization of a scanning standing wave spectrometer with a long term goal of creating a compact imaging spectrometer. In our standing wave integrated Fourier transform spectrometer, light is injected with micro-lenses i ...
2015Interferometric 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