Even though an echelle spectrometer can use wider slits than classical optics, the difference in slit height leads to a large difference in total light throughput to the detector between the two …

Fig. 5.5 Echelle with a central beam. The off-axis angle represents the half angle between the incoming and outgoing beam at the echelle grating (Schroeder 1967)

An echelle grating differs from a conventional grating (called an echelette) in many ways. An echelle is coarse (i.e., it has fewer grooves per millimeter than an echelette) and is used at …

Here, we present the mathematical algorithms and examples of their application to the optimal extraction and the following reduction steps for echelle spectrometers equipped with an …

Using an Echelle Grating: The extremely high blaze angle of the Echelle grating concentrates the energy in the higher orders.

Echelle systems display their results in a two-dimensional array, with the spec-trum broken down into short segments for processing and visualized as a series of horizontal spectral orders …

Spectograph Quote the model number below: Description Mechelle 5000 echelle spectrograph Order Code ME5000 Select the Spectograph model