Enhanced avionic sensing based on Wigner's cusp anomalies.
Enhanced avionic sensing based on Wigner's cusp anomalies.
复制标题
DOI:
10.1126/sciadv.abg8118
复制
发表时间:
2021-06
期刊:
影响因子:
13.6
通讯作者:
Kottos T
中科院分区:
文献类型:
--
作者:
Kononchuk R;Feinberg J;Knee J;Kottos T
Differential cross-sectional cusps, occurring at the vicinity of newly open channels, are used for enhanced avionic sensing. Typical sensors detect small perturbations by measuring their effects on a physical observable, using a linear response principle (LRP). It turns out that once LRP is abandoned, new opportunities emerge. A prominent example is resonant systems operating near Nth-order exceptional point degeneracies (EPDs) where a small perturbation ε ≪ 1 activates an inherent sublinear response in resonant splitting. Here, we propose an alternative sublinear optomechanical sensing scheme that is rooted in Wigner’s cusp anomalies (WCAs), first discussed in the framework of nuclear reactions: a frequency-dependent square-root singularity of the differential scattering cross section around the energy threshold of a newly opened channel, which we use to amplify small perturbations. WCA hypersensitivity can be applied in a variety of sensing applications, besides optomechanical accelerometry discussed in this paper. Our WCA platforms are compact, do not require a judicious arrangement of active elements (unlike EPD platforms), and, if chosen, can be cavity free.
登录
查看更多内容
DOI:
10.3390/s130809549
发表时间:
2013-07-24
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Quinchia AG;Falco G;Falletti E;Dovis F;Ferrer C
通讯作者:
Ferrer C
影响因子:
64.8
作者:
Chen, Weijian;Ozdemir, Sahin Kaya;Yang, Lan
通讯作者:
Yang, Lan
影响因子:
--
作者:
SUCHER, J;SNOW, GA;DAY, TB
通讯作者:
DAY, TB
影响因子:
35
作者:
Taylor, Michael A.;Janousek, Jiri;Bowen, Warwick P.
通讯作者:
Bowen, Warwick P.
影响因子:
35
作者:
Krause, Alexander G.;Winger, Martin;Painter, Oskar
通讯作者:
Painter, Oskar