Sumários
Spectroscopy (class 1 of 3)
18 Março 2026, 15:00 • Alexandre Pereira Cabral
Introduction to the operation of spectrometers and monochromators.
Study of the dispersion of light, the properties of diffracting elements and how they are used in monochromators and spectrographs. Spectral characterization of non-monochromatic light and its analysis in bench top spectrographs.
Building a prism and grating Spectrographs.Reference Systems. JWST OTE elements
16 Março 2026, 14:00 • José Manuel Rebordão
Matrice
rotations. Euler angles and different conventions. Quaternions, properties.
Relations between rotation matrices Euler angles and quaternions. Example:
PLATO reference systems.
JWST:
OTE and ISIM. Overview ISIM instruments and of spectroscopic capabilities of
JWST. OTE: conics; TMA and Korsch type telescopes; FoV and image plane.
NEXT
Mirrors
and WFE. FGS. NIRCam
JWST – James Webb Space Telescope
13 Março 2026, 09:00 • José Manuel Rebordão
NEXT CLASS
Observatory. Optical architecture. System elements
Holography (class 3 of 3)
11 Março 2026, 17:00 • Bachar Wehbe
Introduction to practical
Holography, building objects.
Setup of a Denisyuk configuration,
consisting of a volume-reflection holography technique. As a recording medium,
a silver halide emulsion on a glass plate will be used (a matrix of cohesive
silver crystals in a transparent medium). During exposure, the reference wave
and the waves reflected from the object result in an interference structure
that was recorded within the emulsion.
Students produced their own
objects that will be exposed in a 50 mm x 50 mm plate.
Students performed several
exposures using different types of objects (including lenses or mirrors to
generate holographic optical elements known as HOE.
Holography (class 3 of 3)
11 Março 2026, 15:00 • Alexandre Pereira Cabral
Introduction to practical Holography, building objects.
Setup of a Denisyuk configuration, consisting of a volume-reflection holography technique. As a recording medium, a silver halide emulsion on a glass plate will be used (a matrix of cohesive silver crystals in a transparent medium). During exposure, the reference wave and the waves reflected from the object result in an interference structure that was recorded within the emulsion.
Students produced their own objects that will be exposed in a 50 mm x 50 mm plate.
Students performed several exposures using different types of objects (including lenses or mirrors to generate holographic optical elements known as HOE.
Analysis of non-holographic technics, bases on the Peper’s ghost concept, will be shown in the lab for analysis.