The goal of this blog is to become a dynamical way of providing fast and updated useful information, to the user of the instrument OSIRIS at GTC, complementing the information provided by GRANTECAN S.A.
It contains information about the manuals, instrument calibration, pipelines for download, tutorials, contributions, announcements, etc. Also, some historical information about the integration, and commissioning of the different observing modes is provided as well.
This Blog is maintained by the OSIRIS Scientific Team.

Tuesday, April 04, 2006

Los espejos del Osiris: el COLIMADOR

Durante los días 3, 4 y 5 de Abril se están recibiendo en las instalaciones del IAC los dos espejos de Osiris. En las imágenes, técnicos de SESO (France) revisando el ESPEJO COLIMADOR.


Anonymous said...

For my own curiosity.Assume that once we have a stellar object collimated beam (i.e after collimator)we use it as usual (sooner or later it will pass thru the Tunable filter etc etc) so this beam 1 is the 'object' beam that we force finally to arrive to an holographic plate. Meanwhile a beam 2 (the 'reference beam´) coherent with beam 1 arrives in order to interfere with beam 1 to the same holographic plate. Could we then produce the stellar object hologram? Would be a kind of ´reverse holography´. Osiris wavelength range sounds pretty close to lasers commonly used to ´illuminate´ malfunctioning cells in the human body allowing holograms of the affected areas. Sorry to make you waste your time but if possible would be nice to know.regards.

Anonymous said...

oops! sorry I forgot to mention that using volume phase holographic gratings would make GTC less vulnerable to any OSIRIS malfunction since the VPHG might be easily attached to any simple spectrometer (as the, I believe, it is planned for day one just in case delays appear). In this case the TF's and the mask loader would not be needed. Control for such type of optics seems pretty simple since is VPHG which is moved rather than tilting the collimator
and switching TF's.