Compact IMAGING spectrograph SL100M
The SL100M device is a simple and compact lens spectrograph with astigmatism compensation, intended for operation in ultraviolet, visible and near-infrared spectral regions. SL100M is designed on a horizontal-symmetric configuration with two objectives, focal length of 100 mm and F/number of 1/3.3. Wavelength scanning is performed manually with a micrometer screw.
The distinctive features of the SL100M Imaging spectrograph manufactured by SOL instruments are: high optical throughput, plane focal field, manually-regulated entrance slit, compact size, ease of use and very light weight. Due to compensation of astigmatism and distortion, the SL100M device is ideal for application in multi-channel spectroscopy and for luminescent measurements.
Description of compact spectrograph SL100M
Small-sized Imaging spectrograph SL100M
Astigmatism-compensated Imaging lens spectrographs of SL100M series with focal length of 100 mm and F/number of 1/3.3 are designed on a horizontal-symmetric configuration with two objectives. Wavelength scanning is performed manually with a micrometer screw. Due to compensation of astigmatism and distortion, the SL100M devices are perfect for application in multi-channel spectroscopy.
The standard delivery set of the SL100M spectrographs includes a camera adapter with «C-mount» flange. Other flanges for CCD detectors connection can be supplied on a customer’s request.
Application areas of SL100M
- Multi-channel spectroscopy
- Luminescent measurements
Optical scheme of SL100M
Features of SL100M
- High optical throughput and plane focal field
- Manually-regulated entrance slit
- Compact, light-weight and easy to operate
Specification of Imaging spectrographs of SL100M series
Optical system
| Optical scheme: | horizontal-symmetrical, with astigmatism compensation |
| F/number: | 1/3.3 |
| Focal length: | 99.3 mm |
| Objectives: | achromatized, distortion-compensated |
| Flat field: | 28 х 8 mm (20 х 8 mm with C-mount adapter) |
| Diffraction grating size: | 40 x 40 x 6 mm |
| Stray light (20 nm from 632.8 nm laser line): | 9 х 10-4 |
- Optical scheme: horizontal-symmetrical, with astigmatism compensation
- F/number: 1/3.3
- Focal length: 99.3 mm
Objectives: achromatized, distortion-compensated
- Flat field: 28 х 8 mm (20 х 8 mm with C-mount adapter)
- Diffraction grating size: 40 x 40 x 6 mm
Stray light (20 nm from 632.8 nm laser line): 9 х 10-4
Imaging
| Horizontal magnification: | 1.2 |
| Vertical magnification: | 1 |
| Vertical spatial resolution: | 50 µm |
- Horizontal magnification: 1.2
- Vertical magnification: 1
- Vertical spatial resolution: 50 µm
Drive
| Control: | manual, with micrometer screw |
| Mechanism: | sine |
| Reading accuracy (micrometer): | 1 nm |
- Control: manual, with micrometer screw
- Mechanism: sine
- Reading accuracy (micrometer): 1 nm
Optics
| Device model: | SL100M | SL100M-UV |
|---|---|---|
| Diffraction grating: | 400 l/mm 500 nm | 400 l/mm 300 nm |
| Wavelengths range limited by the constructive parameters: | 360 – 1100 nm | 200 – 1100 nm |
| Wavelengths range with diffraction grating efficiency >40%: | 265 – 1000 nm | 200 – 600 nm |
| Reciprocal linear dispersion (at blaze wavelength): | 18.38 nm/mm | 19.21 nm/mm |
| Spectral resolution: | < 0.35 nm | < 0.37 nm |
| Repeatability: | ± 0.1 nm | ± 0.1 nm |
| Wavelength accuracy: | ± 1 nm | ± 1 nm |
Model: SL100M
- Diffraction grating: 400 l/mm 500 nm
- Wavelengths range limited by the constructive parameters: 360 — 1100 nm
- Wavelengths range with diffraction grating efficiency is greater than 40%: 265 — 1000 nm
- Reciprocal linear dispersion (at blaze wavelength): 18.38 nm/mm
- Spectral resolution: less than 0.35 nm
- Repeatability: ±0.1 nm
- Wavelength accuracy: ±1 nm
Model: SL100M-UV
- Diffraction grating: 400 l/mm 300 nm
- Wavelengths range limited by the constructive parameters: 200 — 1100 nm
- Wavelengths range with diffraction grating efficiency is greater than 40%: 200 — 600 nm
- Reciprocal linear dispersion (at blaze wavelength): 19.21 nm/mm
- Spectral resolution: less than 0.37 nm
- Repeatability: ±0.1 nm
- Wavelength accuracy: ±1 nm
Spectral slits
| Control: | manual, with micrometer screw |
| Opening width: | smoothly regulated from 0 up to 2.0 mm |
| Parallelism: | ± 1 µm |
| Accuracy (slit width 1 mm): | ± 10 µm |
| Repeatability: | ± 1.5 µm |
| Reading accuracy (micrometer): | 2 µm |
- Control: manual, with micrometer screw
- Opening width: smoothly regulated from 0 up to 2.0 mm
- Parallelism: ±1 µm
- Accuracy (slit width 1 mm): ±10 µm
- Repeatability: ±1.5 µm
- Reading accuracy (micrometer): 2 µm
Dimensions
| Overall sizes (L x W x H): | 190 х 175 х 160 mm |
| Weight: | 2 kg |
- Overall sizes (L x W x H): 190 х 175 х 160 mm
- Weight: 2 kg
Dimensional drawing of spectrograph SL100M
