We report the realization and characterization of an optofluidic microlaser based on a Fabry-Perot resonator fabricated by exploiting two direct writing fabrication techniques: the femtosecond laser micromachining and the inkjet printing technology. In this way a standard Fabry-Perot cavity has been integrated into an optofluidic chip. When using rhodamine 6G dissolved in ethanol at concentration of 5·10-3 mol/l, laser emission was detected at a threshold energy density of 1.8 μJ/mm2 at least one order of magnitude lower than state-of-the-art optofluidic lasers. Linewidth below ∼0.6 nm was measured under these conditions with a quality factor Q∼103. These performances and robustness of the device makes it an excellent candidate for biosensing, security and environment monitoring applications. ©2016 Optical Society of America.

Low threshold Fabry-Perot optofluidic resonator fabricated by femtosecond laser micromachining / Simoni, Francesco; Bonfadini, S.; Spegni, Paolo; Lo Turco, S.; Lucchetta, Daniele Eugenio; Criante, Luigino. - In: OPTICS EXPRESS. - ISSN 1094-4087. - ELETTRONICO. - 24:15(2016), pp. 17416-17423. [10.1364/OE.24.017416]

Low threshold Fabry-Perot optofluidic resonator fabricated by femtosecond laser micromachining

SIMONI, Francesco;SPEGNI, PAOLO;LUCCHETTA, Daniele Eugenio;CRIANTE, Luigino
2016-01-01

Abstract

We report the realization and characterization of an optofluidic microlaser based on a Fabry-Perot resonator fabricated by exploiting two direct writing fabrication techniques: the femtosecond laser micromachining and the inkjet printing technology. In this way a standard Fabry-Perot cavity has been integrated into an optofluidic chip. When using rhodamine 6G dissolved in ethanol at concentration of 5·10-3 mol/l, laser emission was detected at a threshold energy density of 1.8 μJ/mm2 at least one order of magnitude lower than state-of-the-art optofluidic lasers. Linewidth below ∼0.6 nm was measured under these conditions with a quality factor Q∼103. These performances and robustness of the device makes it an excellent candidate for biosensing, security and environment monitoring applications. ©2016 Optical Society of America.
2016
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11566/237736
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 23
  • ???jsp.display-item.citation.isi??? 20
social impact