CHAMP – multiCHannel lock-in AMPlifier Spectrometer
CHAMP is an advanced optical spectrometer based on proprietary multi-channel lock-in amplification technology, delivering extremely low noise, sub-microsecond response, and high spectral precision. Specifically designed for broadband Stimulated Raman Scattering (SRS) microscopy, CHAMP enables real-time reconstruction of pixel-wise vibrational spectra with MHz modulation frequencies.
With 38 independent detection channels and parallel demodulation capability, CHAMP provides unmatched performance in high-speed, high-sensitivity Raman imaging.
Compact, modular, and easily integrated into research microscopes, it offers a scalable platform for state-of-the-art chemical imaging and spectroscopy.
Feauters
- 38 spectral channels, each with independent lock-in amplifiers.
- Extremely low electronic noise thanks to proprietary multi-channel lock-in technology.
- High spectral resolution (<9 cm⁻¹) across the CH-stretching region (2800–3100 cm⁻¹).
- Fast response times, with integration down to 1 μs and MHz-range detection.
- Shot-noise-limited dynamic range of 22 dB – ultimate SNR with only 25 μW optical power per channel.
- Real-time demodulated signal extraction and average power readout on all channels simultaneously.
- Compact and modular architecture for seamless integration with SRS microscopes and STRALE laser systems.
- USB 3.0 interface for high-speed data transfer to PC.
Applications
- Broadband SRS microscopy for high-speed chemical imaging.
- Label-free biomedical and cellular imaging with real-time vibrational spectra reconstruction.
- Material science and nanostructure characterization.
- High-frequency modulation-transfer detection and spectroscopy.
- Integration with STRALE laser systems for complete coherent Raman platforms (e.g., CORAL).
Specifications
| Parameter | Specification |
|---|---|
| Frequency Range | 1 – 10 MHz |
| Noise Equivalent Power (NEP) | < 20 pW/√Hz |
| Detector Type | 38-channel Si photodiode array |
| Filter Time Constant | 0.5 μs |
| Vertical Resolution | 16 bit |
| Maximum Input Power | 4 mW per channel |
| Spectral Resolution | < 9 cm⁻¹ (measured around 1030 nm with STRALE laser) |
| Spectral Range | 2800 – 3100 cm⁻¹ |
| Data Interface | USB 3.0 |
| Dynamic Range | 22 dB (shot-noise-limited) |
| Integration Time | Down to 1 μs |
| Architecture | Modular, scalable multi-channel design |
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