SISTEMA DE DETECÇÃO DE LUZ PARA MICROSCÓPIOS DE VARREDURA DE TUNELAMENTO

(EN) The present invention is essentially a system comprising: a geometrically configured parabolic mirror (1), at least one convergent lens (2), a precise positioning handle (3), at least one optical fibre (4), at least one optical spectrometer (5), means (6) for thermally insulating the mirror stand from the other parts of the handle, and optionally means for cooling the mirror stand in an ultra-high vacuum (7). Said precise positioning handle (3) positions the parabolic mirror (1) precisely by means of an orthogonal arrangement of piezoelectric translators that enables the system to work with high precision, and more specifically with high optical collection and transmission efficiency. The system also has an auxiliary optical table (8) positioned in an external environment outside the ultra-high vacuum (UHV) chamber including free optical elements for improving injection efficiency in the optical fibre (4) carrying the light to the spectrometer (5).