Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fully non-scanning three-dimensional imaging using an all-optical
  Hilbert transform enabled by an optical frequency comb   This paper demonstrates that the precise phase controllability of an optical
frequency comb enables all-optical signal processing for the first time. A
novel all-optical Hilbert transform is presented with precise control of
relative carrier-phase and envelope of optical pulse train based on frequency
control utilizing an optical frequency comb. With the proposed all-optical
signal processing method, fully non-scanning one-shot three-dimensional (3D)
imaging can be realized with high image resolution. The technique can be
applied to coherent phase imaging simultaneously. A precise pair of
90$^\circ$-phase-shifted optical pulses over the entire spectral bandwidth can
be generated based on the precise optical phase controllability of an optical
frequency comb, thereby facilitating a real-time and precise all-optical
Hilbert transform to obtain amplitude and phase of optical signal in a single
shot of ultrashort pulses. In our experiments, we realized single-shot 3D
imaging with an uncertainty of 5 $\rm{\mu}$m and obtained a surface profile
with a resolution of 200 $\times$ 200 pixels.

13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
10
The categories of this paper are: q-bio