resumo
Diamond films were deposited by chemical vapor deposition (CVD) on the tip of Fabry-Perot (FPI) and multi-mode (MMI) optical fiber interferometers. Diamond provides a robust interface capable of forming covalent bonds between atoms on its surface and receptor molecules, required for biosensing applications. The films were characterized by optical and scanning electron microscopy (SEM), optical profilometry and Raman spectroscopy. The diamond-coated interferometers were tested with different refractive index solutions. The sensors response was 40 +/- 1 dB/RIU and -987 +/- 70 pm/ RIU for the FPI and -11 +/- 1 dB/RIU for the MMI.
palavras-chave
MULTIMODE INTERFERENCE; RAMAN-SPECTROSCOPY; PRINCIPLES; GEMSTONE; GRATINGS; FILMS
categoria
Materials Science; Optics
autores
Kyatam, S; Oliveira, R; Rocha, AM; Mukherjee, D; Neto, MA; Oliveira, FJ; Khan, MA; Correia, MRP; Mendes, JC
nossos autores
Filipe José Alves de Oliveira
Investigador Principal
Miguel Ângelo da Costa Neto
InvestigadorProjectos
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
agradecimentos
This work is funded by national funds through FCT/MEC (PIDDAC) and where applicable co-funded by EU, under projects UIDB/50008/2020-UIDP/50008/2020, UID/EEA/50008/2019, UIDB/50011/2020, UIDP/50011/2020 and LA/P/0006/2020, X-0009-AV-20 BioPlus, FOPEComSens (PTDC/EEI-TEL/1511/2020) and CEECIND2021.01066, and contract program under the degree law Nr. 57/2016.