Tags » Interferometry

K-band Radar Interferometric Topographic Measurements with GLISTIN: dial-in seminar on Thursday, May 21

This seminar might be of interest to readers working with space borne radars:

The NASA Cryo Remote Sensing from Space (CRSS) webinars resume this week after a longer-than-planned hiatus. 241 more words

Synthetic Aperture Radar

Expanding a telescope to image our Milky Way's Central Black Hole

From a press release of the Max Planck Institute for Radio Astronomy, April 21, 2015:

Joint observations by the Atacama Pathfinder Experiment (APEX) telescope in Chile and Antarctica’s largest astronomical telescope come closer to making detailed images of the supermassive black hole in the centre of the Milky Way, up to its very edge, the “event horizon”. 287 more words

15. The Milky Way: Our Home In The Universe

Additional resources in optical device development

Optical theory can guide only so far, before designers must look at actual device designs. Books and patents are the obvious sources for this, but these are often very generic and soon outdated, as books get old and patents are vague by design in order to protect trade secrets. 161 more words


Testing a convex aspherical mirror with a Null system

Last week I designed a Ritchey-Chretien type astrograph that employed a convex aspherical secondary mirror. Convex surfaces are difficult to measure during manufacture, asphericals even more so, so I will discuss a method to measure such a surface. 492 more words

Geometrical Optics

From Keck: "Scientists Accurately Quantify Dust Around Planets in Search for Life"

Keck Observatory

December 2, 2014
Bertrand Mennesson, PhD
Jet Propulsion Laboratory

Steve Jefferson
Communications Officer
W. M. Keck Observatory… 1,348 more words

Basic Research

Talk @UFF, Pablo Saldanha (UFMG), Friday Oct. 17th, 11:00

Next Friday, Oct. 17th, we’ll have Pablo Saldanha (UFMG) visiting our group in Niterói. At 11:00 he’ll be giving a talk with title: “É possível se separar um fóton de sua polarização ou um nêutron de seu spin?”. 291 more words