In Broadband Stimulated Raman Spectroscopy, the intrinsic limit given by the laser shot noise is seldom reached due to the electronic noise of the front-end amplifier and the intensity fluctuations of the laser source. In this paper we present a low-noise multi-channel acquisition system, with an integration-oriented design, able to compensate the common-mode fluctuations of the laser output power with the pseudo-differential structure and reach a sensitivity better than 10 ppm thanks to the lock-in technique.
Titolo: | Multi-channel lock-in based differential front-end for broadband Raman spectroscopy | |
Autori: | ||
Data di pubblicazione: | 2019 | |
Rivista: | ||
Handle: | http://hdl.handle.net/11311/1095841 | |
Appare nelle tipologie: | 01.1 Articolo in Rivista |
File in questo prodotto:
File | Descrizione | Tipologia | Licenza | |
---|---|---|---|---|
1905.12467v2.pdf | Post-print da Arxiv | Post-Print (DRAFT o Author’s Accepted Manuscript-AAM) | Accesso apertoVisualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.