Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tailoring the Chirality of Microlaser with Topological Structured Chiral
  Droplets   The generation of chiral laser emission offers promising opportunities for
modern photonic applications and the study of chiral light-mater interactions.
Despite the great process made in recent years, the direct generation of chiral
lasers with controllable chirality remains challenging in a microcavity. This
study reports a strategy to control the emission chirality of
whispering-gallery-mode organic microlasers with topological-structured chiral
liquid crystal droplets. The findings suggest that the topological
transformations in a microdroplet can induce different optical chirality
strength and lasing polarization characteristics. In particular, the role of
optical rotatory power was also investigated under linear and circular
polarized excitation, where a vast lasing intensity difference between
left/right circular polarized excitation was revealed. Theoretical analysis and
simulation were carried out to support the significant findings. This study
provides a facile tool for manipulating chiral laser emissions in microcavity,
giving inspiration for topological-controlled photonics, chiral optical
devices, and chiral molecular detection.

2
The categories of this paper are: math
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga