ELFT HÍRADÓ

[Szeminárium koordinátor <sem-admin AT szfki.hu>]

SZFI SeminarAlexander WeigelMPI Garching (host: Dombi Péter és Szipőcs 
Róbert)Field-resolved Infrared Spectroscopy for Blood-based 
Health-monitoringTuesday, 11 June 2024, 10:00, KFKI Campus, Bldg. 1, 2nd 
floor, Conference RoomField-resolved infrared spectroscopy (FRS) uses 
electro-optic sampling to directly record the vibrational response of 
analytes to the excitation by an ultrashort infrared pulse. Compared to 
conventional intensity-based Fourier-transform infrared spectroscopy, 
field-resolved detection offers several advantages, including intrinsically 
high dynamic range and background-free detection of the molecular response 
signal. I will report on our latest FRS developments, featuring 
super-octave-spanning infrared spectral coverage and dual-oscillator scanning 
at multi-kHz rates with attosecond delay precision. Interferometric 
extinction of the excitation pulse has the potential to increase the 
detection dynamic range further. I will present Cr:ZnS oscillators as an 
ideal laser platform for dual-oscillator EOS, providing single-cycle, 
ultra-broadband infrared pulses at multi-MHz repetition rates, while 
maintaining exceptionally high power and carrier-envelope-phase stability. 
For complex samples like human blood, the infrared response signals recorded 
with FRS provides a fingerprint of the molecular composition of the sample. 
We envision the application of FRS for blood-based disease detection and 
health monitoring, to be tested, among others, on human blood samples 
collected within the H4H (Health for Hungary - Hungary for Health) 
program. Minden érdeklődőt szívesen látunk! - Everyone is welcome to 
attend.Attila Nagysem-admin AT szfki.hu