Concept

Atmospheric refraction

Related publications (20)

Method of producing a reflective or refractive surface

A method and apparatus for producing a reflective or refractive surface that reflects or refracts light shined thereon and reproduces on a screen a desired greyscale intensity image on which the reflective or refractive surface is based and a corresponding ...

2014

Negative Refraction and Planar Focusing Based on Parity-Time Symmetric Metasurfaces

Romain Christophe Rémy Fleury

We introduce a new mechanism to realize negative refraction and planar focusing using a pair of parity-time symmetric metasurfaces. In contrast to existing solutions that achieve these effects with negative-index metamaterials or phase conjugating surfaces ...

American Physical Society2014

Multi-wavelength Raman lidar, sun photometric and aircraft measurements in combination with inversion models for the estimation of the aerosol optical and physico-chemical properties over Athens, Greece

Athanasios Nenes

A novel procedure has been developed to retrieve, simultaneously, the optical, microphysical and chemical properties of tropospheric aerosols with a multi-wavelength Raman lidar system in the troposphere over an urban site (Athens, Greece: 37.9° N, 23.6° E ...

2012

Gravitational Lensing Accuracy Testing 2010 (Great10) Challenge Handbook

Frédéric Courbin, Matthias Bethge, Anaïs Marie Rassat, Marc Gentile, Guldariya Nurbaeva, Richard Massey, Michael Hirsch

GRavitational lEnsing Accuracy Testing 2010 (GREAT10) is a public image analysis challenge aimed at the development of algorithms to analyze astronomical images. Specifically, the challenge is to measure varying image distortions in the presence of a varia ...

2011

Nanoporous films with low refractive index for large-surface broad-band anti-reflection coatings

Libero Zuppiroli, Rolando Ferrini, Gaëtan Wicht

Nowadays, nanoporous films are widely employed in biochemical applications or in opto-photonic devices such as displays, solar cells, or light-guiding systems. In particular, the technological feasibility of nanoporous layers with low refractive indices ha ...

Wiley-Blackwell2010

Microlenses on Bragg Reflectors to Create Iridescent Colors

Hans Peter Herzig, Toralf Scharf

In nature strong colors play an important role in scaring away predators or finding a mate. Often, the strongest and brightest colors arise from coherent scattering and reflection on periodic structures on a length scale of several micro- or nanometers. Un ...

2008

Multi-notch holographic filters for atmospheric lines suppression

Demetri Psaltis

Near-infrared emission from atmospheric OH radicals is known to severely affect astronomical observations. Until now, only complex dispersive instruments were partially capable of removing this unwanted background, which is composed of hundreds of narrow e ...

2004

Aerosol optical characterization by nephelometer and lidar: the Baltimore Supersite experiment during the Canadian forest fire smoke intrusion

Marc Parlange

[1] High spatial and temporal resolution elastic backscatter lidar data from Baltimore are analyzed with a near-end approach to estimate vertical profiles of the aerosol extinction coefficient. The near-end approach makes use of the (1) aerosol scattering ...

2004

Integrated optical sensor micro-systems based on disposable transducers

In this work novel concepts for the realization of miniature integrated optical sensor systems are presented. An important aspect for all realized approaches was their suitability for the use of disposable sensor chips. This is essential, especially for ap ...

EPFL2000

Extending the Vostok ice-core record of palaeoclimate to the penultimate glacial period

Jérôme Chappellaz

Carbonyl sulfide (COS) was measured in polar firn air from one Arctic and two Antarctic locations. The air samples represent atmospheric composition from the early to mid-20th century up to the present day. This provides the longest record to date of atmos ...

American Geophysical Union (AGU)1993

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