Table 2. Specifications and Raman signal quality metrics of the tested spectrographs.
Spectrograph | Specifications | Experimental | ||||
---|---|---|---|---|---|---|
| ||||||
F-number | Slit Width(μm) | Grating Type | Resolution(cm−1) | SBR | SNR | |
System 1 | f/2.2 | 200 | Transmissive | 8.9 | 0.19 | 61 |
System 2 | f/2.2 | 100 | Transmissive | 8.7 | 0.20 | 45 |
System 3 | f/1.8 | 100 | Transmissive | 8.3 | 0.11 | 23 |
System 4 | f/2 | 75 | Reflective | 8.1 | 0.13 | 22 |