Rainbow multi-channel
Rainbow Series Multi-Channel Spectrometer
Two to six Aurora-class 3648-pixel spectrometers in one housing, each covering a slice of the spectrum, with a synchronous delay device that fires all channels together. Wide range and high resolution at once — 185–930 nm at 0.08–0.22 nm in the standard configurations — with internal or external triggering for pulsed sources.
2–6
Synchronised channels
0.1 nm
Resolution, up to
< 1 ns
Delay jitter
0–1 ms
Delay control range

Features
- High resolution across a wide spectral range
- Number of channels and their spectral ranges customised to the application
- Built-in synchronous delay device for simultaneous acquisition on every channel
- Internal or external control (trigger) mode
- Works with the Spectral Analysis and LIBS software
Applications
- Plasma spectral analysis
- Laser-induced breakdown spectroscopy (LIBS)
- Soil pollution analysis
- Heavy-metal analysis
- Food safety analysis
- Biological analysis
Available Models
Ordering Options
Standard channel layouts; other channel counts and ranges are configured to order.
Rainbow 2-channel
200–550 nm overall: 200–340 nm at 0.14 nm, 340–550 nm at 0.2 nm
Rainbow 3-channel
250–645 nm overall: 250–346, 346–440 and 440–645 nm at 0.12 / 0.12 / 0.18 nm
Rainbow 4-channel
190–930 nm overall: 190–320, 320–520, 520–700 and 700–930 nm at 0.14 / 0.18 / 0.18 / 0.22 nm
Rainbow 5-channel
185–530 nm overall: 185–240, 240–280, 280–370, 370–455 and 455–530 nm at 0.08 / 0.08 / 0.11 / 0.11 / 0.11 nm
Standard channel configurations
Wavelength range and optical resolution (nm) per channel.
| Configuration | Channel 1 | Channel 2 | Channel 3 | Channel 4 | Channel 5 |
|---|---|---|---|---|---|
| 2 channels (200–550 nm) | 200–340 nm · 0.14 | 340–550 nm · 0.2 | — | — | — |
| 3 channels (250–645 nm) | 250–346 nm · 0.12 | 346–440 nm · 0.12 | 440–645 nm · 0.18 | — | — |
| 4 channels (190–930 nm) | 190–320 nm · 0.14 | 320–520 nm · 0.18 | 520–700 nm · 0.18 | 700–930 nm · 0.22 | — |
| 5 channels (185–530 nm) | 185–240 nm · 0.08 | 240–280 nm · 0.08 | 280–370 nm · 0.11 | 370–455 nm · 0.11 | 455–530 nm · 0.11 |
Technical Specifications
Rainbow multi-channel Specifications
Spectrometer (per channel)
| Wavelength range | 185–1200 nm overall; band and resolution per channel customised to order |
|---|---|
| Optical resolution | < 0.75 nm FWHM; down to 0.08 nm in the standard channel layouts |
| Pixels | 3648 |
| Pixel size | 8 µm × 200 µm |
| Signal-to-noise ratio | 300:1 |
| Integration time | 4 ms – 10 s |
| Power consumption | 450 mA at 5 V DC per spectrometer |
Delay device
| Synchronous channels | 6 (other channel counts to suit the spectrometer) |
|---|---|
| Trigger mode | Internal or external control |
| Delay jitter | < 1 ns |
| Delay control range | 0–1 ms |
| Signal outputs | 5 V TTL |
Software
| Spectrum analysis | Spectral Analysis / LIBS software |
|---|---|
| Operating system | Windows XP / 7 / 10, 32- or 64-bit |
System
| Dimensions | 155 × 262 × 168 mm (varies with the number of channels) |
|---|---|
| Computer interface | USB 2.0 and USB 1.0 |
| Power supply | 220 V AC, 50–60 Hz |
| Fibre connector | SMA905 or FC; multi-in-one fibre bundle to match the channel count |
| Warranty | 1 year |
Final specifications depend on the configured wavelength range, entrance aperture and grating. We confirm the configuration before quotation.
Figures
Drawings, Photos and Measured Data




Datasheets
Full specification sheets for the Rainbow multi-channel.
Other Spectrometers


