Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On-chip optical filters with designable characteristics based on an
  interferometer with embedded silicon photonic structures   We demonstrate chip-scale flat-top filters at near-infrared wavelengths using
negative index photonic crystal based Mach Zehnder interferometers. Supported
by full three-dimensional numerical simulations, we experimentally demonstrate
a new approach for engineering high-pass, low-pass, band-pass, and band-reject
filters, based on designing the photonic band diagram both within the band-gap
frequency region and away from it. We further show that our approach can be
used to design filters that have tunable multi-level response for different
sections of the spectrum and for different polarizations. This configuration
enables deterministic control of the bandwidth and the rejection ratio of
filters for integrated photonic circuits.

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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: solv-int
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The categories of this paper are: q-fin
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: atom-ph
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The categories of this paper are: econ
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org