Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Wide optical spectrum range, sub-volt, compact modulator based on
  electro-optic polymer refilled silicon slot photonic crystal waveguide   We design and demonstrate a compact and low-power band-engineered
electro-optic (EO) polymer refilled silicon slot photonic crystal waveguide
(PCW) modulator. The EO polymer is engineered for large EO activity and
near-infrared transparency. A PCW step coupler is used for optimum coupling to
the slow-light mode of the band-engineered PCW. The half-wave switching-voltage
is measured to be V{\pi}=0.97+-0.02V over optical spectrum range of 8nm,
corresponding to the effective in-device r33 of 1190pm/V and V{\pi} L of
0.291+-0.006V mm in a push-pull configuration. Excluding the slow-light effect,
we estimate the EO polymer is poled with an efficiency of 89pm/V in the slot.

13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas