  SCALES (Slicer Combined with an Array of Lenslets for Exoplanet Spectroscopy)
is a 2 to 5 micron high-contrast lenslet-based Integral Field Spectrograph
(IFS) designed to characterize exoplanets and their atmospheres. Like other
lenslet-based IFSs, SCALES produces a short micro-spectrum of each lenslet's
micro-pupil. We have developed an image slicer that sits behind the lenslet
array and dissects and rearranges a subset of micro-pupils into a pseudo-slit.
The combination lenslet array and slicer (or slenslit) allows SCALES to produce
much longer spectra, thereby increasing the spectra resolution by over an order
of magnitude and allowing for comparisons to atmospheric modeling at
unprecedented resolution. This proceeding describes the design and performance
of the slenslit.

Instrumentation and Methods for Astrophysics