Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exploring the Photon-Number Distribution of Bimodal Microlasers   A photon-number resolving transition edge sensor (TES) is used to measure the
photon-number distribution of two microcavity lasers. The investigated devices
are bimodal microlasers with similar emission intensity and photon statistics
with respect to the photon auto-correlation. Both high-$\beta$ microlasers show
partly thermal and partly coherent emission around the lasing threshold. For
higher pump powers, the strong mode of microlaser A emits Poissonian
distributed photons while the emission of the weak mode is thermal. In
contrast, laser B shows a bistability resulting in overlayed thermal and
Poissonian distributions. While a standard Hanbury Brown and Twiss experiment
cannot distinguish between simple thermal emission of laser A and the mode
switching of laser B, a TES allows us to measure the photon-number distribution
which provides important insight into the underlying emission processes.
Indeed, our experimental data and its theoretical description by a master
equation approach show that TESs are capable of revealing subtle effects like
temporal mode switching of bimodal microlasers. As such our studies clearly
demonstrate the huge benefit and importance of investigating nanophotonic
devices via photon-number resolving sensors.

15
The categories of this paper are: nucl-ex
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
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The categories of this paper are: econ
31
The categories of this paper are: ao-sci
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The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc