Huygens | Carrying the World in Your Back Pocket

Quiz : A middle aged lady with annular athrophic papules and plaques on her back: What is your diagnosis?

A 51 year old woman was referred to dermatology clinic with multiple asymptomatic erythematus papules and plaques on her back, which she had developed over the previous 2 months ago. In the dermatological examination, there were multiple atrophic papules with hypopigmented centers and sharp borders on her back, some of which were annular with elevated violaceous borders (Figures 1, 2). Fu...

High Quality Information Delivery: Demonstrating the Web in Your Pocket for Cineast Tourists

The Web in Your Pocket is an information platform providing users with high quality content, sourced from the Web and curated by human experts. We describe the process as well as its implementation and elaborate on our demo case: tourists wishing to explore remote filming locations.

Electromagnetic Absorber Realization Using Huygens Metasurfaces

In this paper, the possible realization of the electromagnetic (EM) absorber as a thin metasurface is considered. The metasurface is based on establishing a passive surface of electric and magnetic currents using the Huygen’s principle. So, the absorber is named Huygens Absorber (HA). The metasurface can be designed using split meander lines with spiral rings. In this way, both sides of the sub...

Metamaterial Huygens' surfaces: tailoring wave fronts with reflectionless sheets.

Huygens' principle is a well-known concept in electromagnetics that dates back to 1690. Here, it is applied to develop designer surfaces that provide extreme control of electromagnetic wave fronts across electrically thin layers. These reflectionless surfaces, referred to as metamaterial Huygens' surfaces, provide new beam shaping, steering, and focusing capabilities. The metamaterial Huygens' ...

Point of care in your pocket: a research agenda for the field of m-health.