Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lithium niobate micro-disk resonators of quality factors above 10^7   We report on fabrication of crystalline lithium niobate microresonators with
quality factors above 10^7 as measured around 770 nm wavelength. Our technique
relies on femtosecond laser micromachining for patterning a mask coated on the
lithium niobate on insulate (LNOI) into a microdisk, followed by a
chemo-mechanical polishing process for transferring the disk-shaped pattern to
the LNOI. Nonlinear processes including second harmonic generation and Raman
scattering have been demonstrated in the fabricated microdisk.

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The categories of this paper are: chao-dyn
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
2
The categories of this paper are: math
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
1
The categories of this paper are: cs
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The categories of this paper are: supr-con
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The categories of this paper are: econ
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The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat