Photo-thermal interferometer

European patent specification EP3 492 905 B1, 2020-04-29

Luka Drinovec (Author), Griša Močnik (Author)

Abstract

A photo-thermal interferometer for measuring the light absorption of an aerosol or gas comprises a first laser source emitting a laser beam and a beam splitter adapted to divide the laser beam into a probe beam and a reference beam. The interferometer further comprises first optical elements which are adapted to direct the probe beam such that it passes through the aerosol and interferes with the reference beam thereafter thereby causing interference patterns. A detector detects the interference patterns. The interferometer further comprises a second laser source configured to emit a pump beam for transferring energy to the aerosol. Second optical elements are adapted to direct the pump beam such that it overlaps with the probe beam at least partially in the aerosol or gas. At least one of the second optical elements modifying the pump beam is an axicon.

Keywords

absorpcija;aerosoli;črni ogljik;

Data

Language:	English
Year of publishing:	2020
Typology:	2.24 - Patent
Organization:	UNG - University of Nova Gorica
Publisher:	European Patent Office
UDC:	54
COBISS:	13352707
Views:	2040
Downloads:	85
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary title:	Fototermični interferometer
Secondary keywords:	absorpcija;aerosoli;črni ogljik;
URN:	URN:SI:UNG
Type (COBISS):	Patent
Pages:	12 f.
ID:	12023276