Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Degeneracy breaking of Wood's anomaly for enhanced refractive index
  sensing   We introduce an ultrasensitive detection technique for refractive index (RI)
sensing based on an array of nanometer scale slot-antennas milled in a thin
gold layer using a single lithographic step. Our experimental figures of merit
(FOMs) of 140-210 in the telecom wavelength range approach the fundamental
limit for standard propagating SPR sensors (~250).The underlying mechanism
enabling this is the combination of a narrowband resonance of the slot-antennas
with degeneracy breaking of Wood anomaly under slightly non-perpendicular
illumination. In addition, we explore the sensitivity of the device to the
depth of the analyte layer. This concept can be easily tuned to any desired
wavelength and RI range by modifying the slot dimensions and the array spacing,
thus rendering it highly useful for numerous sensing applications.

37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg