As described in Chapter 2
, the optical design of WFC3 features two independent channels, each with its own separate optics, filters and grisms, and detectors. The UVIS channel
is sensitive to UV and optical wavelengths (200-1000 nm), and the IR channel
is sensitive to near-infrared wavelengths (800-1700 nm).
This chapter describes the capabilities of the IR channel. The previous chapter, Chapter 6
, describes the UVIS channel. Detailed characteristics of the detectors used in both channels are given in Chapter 5
and summarized in Table 5.1