Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Terahertz detection schemes based on sequential multi-photon absorption   We present modeling and simulation of prototypical multi bound state quantum
well infrared photodetectors and show that such a detection design may overcome
the problems arising when the operation frequency is pushed down into the far
infrared spectral region. In particular, after a simplified analysis on a
parabolic-potential design, we propose a fully three-dimensional model based on
a finite difference solution of the Boltzmann transport equation for realistic
potential profiles. The performances of the proposed simulated devices are
encouraging and support the idea that such design strategy may face the
well-known dark-current problem.

23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics