Transflection

Because the beam is transmitted through the film and reflected from the substrate, the measurement of the spectra of relatively thick films on metal substrates is usually known as transflection spectrometry.

Source: wiktionary

Transflection is an extension of the transmission technique, as shown in Figure 4.10. When a mirror is placed behind the sample, the light transmitted through the sample is reflected back through the sample and into the diffuse reflectance probe or integrating sphere. Transflection thus measures a combination of transmission and reflection. This technique is useful for emulsions, gels, and turbid liquids.

Source: wiktionary

Individual cells may also be deposited onto a CaF2 window support, but perhaps the more practical and most appropriate (in terms of its match to cytological practices) method nowadays is to use a low-e glass slide and record a transflection spectrum, see next section.

Source: wiktionary

The images were acquired in the transflection (interactance) mode in which illumination and measurements were performed on the same side of the sample.

Source: wiktionary