Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimally shaped narrowband pulses for Femtosecond Stimulated Raman
  Spectroscopy in the range 330-750 nm   Spectral compression of femtosecond pulses by second harmonic generation in
the presence of substantial group velocity dispersion provides a convenient
source of narrowband Raman pump pulses for femtosecond stimulated Raman
spectroscopy (FSRS). We discuss here a simple and efficient modification that
dramatically increases the versatility of the second harmonic spectral
compression technique. Adding a spectral filter following second harmonic
generation produces narrowband pulses with a superior temporal profile. This
simple modification i) increases the Raman gain for a given pulse energy, ii)
improves the spectral resolution, iii) suppresses coherent oscillations
associated with slowly dephasing vibrations, and iv) extends the useful tunable
range to at least 330-750 nm.

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The categories of this paper are: q-bio
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: cs
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: quant-ph
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The categories of this paper are: q-fin
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The categories of this paper are: cond-mat
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: supr-con