Architecture · Extended coverage
Dual and wide-range spectrometer architectures
Some measurements span a wider range than one detector can cover well. Dual spectrometer systems and wide-range architectures combine the appropriate optical benches, detectors, timing and calibration for extended UV-Vis-NIR and NIR workflows, with each detector in its own range and all of them on one trigger.
Architecture
One optical input, several detectors
Dual spectrometer systems
Dual spectrometer systems: UV-Vis and NIR benches on one trigger
The DS series integrates a UV-Vis or visible spectrometer with an InGaAs NIR spectrometer in one compact system: coverage up to 180–1700 nm with configurable detector and grating options, a common trigger and SDK support for both benches. Each bench keeps its own integration time, so the visible channel can use a short exposure while the NIR channel integrates longer on the weak end of the source. The reasoning behind the pairing is explained in Spectral balance in broadband measurements.
- Silicon detector for the UV-Vis and InGaAs for the NIR, each in its appropriate range
- Common trigger and I/O so both spectra belong to the same event
- Independent integration settings per channel
- Y-splitter fiber or a single input optic feeding both benches
- One SDK for both benches
Wide-range NIR
Wide-range NIR: two InGaAs channels toward 2500 nm
The 900–1700 nm and 1600–2500 nm regions have different signal levels, noise behavior and cooling needs. A single-input dual-detector NIR design gives each region its own InGaAs array behind one optical input, so both bands see the same sample spot while integration and gain are optimized independently.
Staged full range
Staged full-range coverage from the deep UV to 2500 nm
For film stacks and source monitoring that require coverage from 155 nm to 2500 nm, a multi-stage architecture combines a deep-UV bench, a UV-Vis bench and an NIR bench behind a single input architecture with coordinated acquisition. One detector cannot be optimal across that span. A staged system lets each detector operate in its useful range while preserving one optical input and one acquisition strategy. Contact Evolve Sensing for availability in a specific range.
When to use it
When a dual or wide-range architecture is appropriate
A dual or wide-range architecture is appropriate when the measurement requires extended coverage, heterogeneous samples, high dynamic range across the band, synchronized acquisition or detector-specific optimization. When a single bench covers the wavelengths the model uses, a single bench is the better instrument: lower in cost, smaller and simpler to integrate.
Applications
Related applications
Product lines
Related product lines
System
Dual Spectrometer Systems (DS Series)
Integrate two spectrometers with a common trigger for extended range
UV-Vis
SmartEngine UV-VNIR Spectrometer
Workhorse UV-VNIR platform with CCD and CMOS sensor options
NIR
SideWinder NIR Spectrometer
Market-leading NIR performance
UV-Vis
EagleEye UV-Vis-NIR Spectrometer
High Sensitivity UV-Vis-NIR with a cooled detector
FAQ
Frequently asked questions
- Is a wider wavelength range always better?
- No. The appropriate design depends on resolution, detector response, signal level, integration time and the model that consumes the spectrum. The range in use is the range to specify.
- Can Evolve customize the optical configuration?
- Yes. Wavelength range, slit, grating, detector, fiber interface, software and OEM requirements are all configurable, and an evaluation unit is available before purchase.
- How do the two channels stay synchronized?
- A common hardware trigger starts both benches, so each pair of spectra corresponds to the same event.
Related architectures
Ethernet-ready spectrometers
Gigabit Ethernet with onboard memory, ring-buffer and batch acquisition, near-zero trigger latency and hardware reset for OEM and industrial systems.
Deep-UV SmartEngine
Nitrogen-purged 155–410 nm configurations for plasma emission, source monitoring, UV inspection and thin-film metrology.
Single-input dual-detector NIR
One optical input and two InGaAs channels covering 900–2500 nm, so both bands measure the same sample spot.
Next step
Discuss a wide-range configuration with an engineer
Send the wavelength range, the source, the sample and the integration constraints. An engineer will recommend one bench, two benches or a staged system for the measurement.