Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coherent Remote Control of Quantum Emitters Embedded in Polymer
  Waveguides   We report on the coherent internal-state control of single crystalline
nanodiamonds, containing on average 1200 nitrogen-vacancy (NV) centers,
embedded in three-dimensional direct-laser-written waveguides. We excite the NV
centers by light propagating through the waveguide, and we show that emitted
fluorescence can be efficiently coupled to the waveguide modes. We find an
average coupling efficiency of 21.6% into all guided modes. Moreover, we
investigate optically-detected magnetic-resonance spectra as well as Rabi
oscillations recorded through the waveguide-coupled signal. Our work shows that
the system is well suited for magnetometry and remote read-out of spin
coherence in a freely configurable waveguide network, overcoming the need for
direct optical access of NV centers in nanodiamonds. These waveguide-integrated
sensors might open up new applications, like determining magnetic field
distributions inside opaque or scattering media, or photosensitive samples,
like biological tissue.

20
The categories of this paper are: acc-phys
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph