Partially Strong Transparency Conditions and a Singular Localization Method In Geometric Optics

An Eulerian Numerical Method for Geometric Optics

R esum e. La description classique du probl eme de l'optique g eom etrique est La-grangienne. Le passage a la repr esentation Eul erienne est possible mais, en pr esence de caustiques, ne permet pas de calculer la solution Lagrangienne compl ete. On pr esente le contexte math ematique du probl eme ainsi que quelques outils num eriques d evelop-p es pour lever cette limitation. Abstract. The cla...

A geometric method for nipple localization.

BACKGROUND An important part of preoperative assessment in breast reduction surgery is to locate the site of the nipple-areola complex for the newly structured breast. Inappropriate location is difficult to correct secondarily. Traditional methods of nipple localization taught and practiced suggest the nipple to be located anterior to the inframammary fold. Trying to project this point on the a...

Editorial Singular Optics

Electromagnetically induced transparency: Optics in coherent media

Coherent preparation by laser light of quantum states of atoms and molecules can lead to quantum interference in the amplitudes of optical transitions. In this way the optical properties of a medium can be dramatically modified, leading to electromagnetically induced transparency and related effects, which have placed gas-phase systems at the center of recent advances in the development of medi...

Studies in Singular Optics and Coherence Theory

We analyze the total power that is radiated by two correlated point sources. The influence of the degree of coherence between the two sources and of the distance between them can clearly be distinguished. Significant modulations of the total radiated power are predicted. Both primary and secondary sources are investigated.