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Super-resonant coherent absorption sensing
Author(s): P. Malara; C. E. Campanella; A. Giorgini; S. Avino; P. De Natale; G. Gagliardi
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Paper Abstract

In this work, we analyze the possibility of exploiting the recently demonstrated super-resonant intracavity coherent absorption effect for quantitative sensing applications. The method relies on a system of two nested resonators (ring and Fabry-Perot) which allows to increase the radiation-matter interaction pathlength by a factor proportional to the product of the two resonator’s individual finesse coefficients. In this way, it is possible to dramatically increase the interaction of intracavity radiation with a weakly absorbing sample without need of an ultra-high finesse optical cavity. Here, we propose a measurement strategy that allows to exploit the super-resonant enhancement provided by the nested-resonators system and cancel out the noise connected with the radiation source at the same time, and compare it to a conventional cavity-enhanced absorption measurement.

Paper Details

Date Published: 26 January 2018
PDF: 6 pages
Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105401W (26 January 2018); doi: 10.1117/12.2290942
Show Author Affiliations
P. Malara, Istituto Nazionale di Ottica (Italy)
C. E. Campanella, QOpSys s.r.l.s. (Italy)
A. Giorgini, Istituto Nazionale di Ottica (Italy)
S. Avino, Istituto Nazionale di Ottica (Italy)
P. De Natale, Istituto Nazionale di Ottica (Italy)
G. Gagliardi, Istituto Nazionale di Ottica (Italy)

Published in SPIE Proceedings Vol. 10540:
Quantum Sensing and Nano Electronics and Photonics XV
Manijeh Razeghi; Gail J. Brown; Jay S. Lewis; Giuseppe Leo, Editor(s)

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