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SISTEMA DE DETECÇÃO DE LUZ PARA MICROSCÓPIOS DE VARREDURA DE TUNELAMENTO

Document type:Patente
Inventor(s): Yves Maia Auad; Ricardo Javier Peña Roman; Luiz Fernando Zagonel
Applicant: Universidade Estadual de Campinas (UNICAMP)
Deposit date: July 2021, 28
INPI register:
PCT/BR2021/050315
IPC: G01N 21/01 G02B 21/00 H01J 37/244
Abstract

(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).


FAPESP's process: 14/23399-9 - Heterostructures in semiconducting nanowires: nanometric light emitters studied by scanning tunnelling microscopy
Grantee:Luiz Fernando Zagonel
Principal Investigator:Luiz Fernando Zagonel
Institution: Universidade Estadual de Campinas (UNICAMP). Instituto de Física Gleb Wataghin (IFGW)
Support Opportunities: Research Grants - Young Investigators Grants