The VioNeer Deep UV / VUV Spectrometer is an advanced, research-grade instrument engineered for accurate measurements in the 155–410 nm wavelength range. This spectral band covers the deep ultraviolet and vacuum ultraviolet regions that are critical for semiconductor manufacturing, photoresist development, gas and water phase analysis, and biomolecular absorption spectroscopy. By combining a back-thinned 2048‑pixel CCD detector with a high‑efficiency grating optimized around 200 nm, the VioNeer offers high sensitivity and low stray light performance that rival specialized deep‑UV spectrometers commonly used in process control and analytical laboratories.

With an optical resolution ranging from 0.3 to 1.8 nm, adjustable via 10–200 µm slit widths, users can tune the system for either high spectral resolution or enhanced throughput, depending on the application. This makes the VioNeer suitable for tasks that demand precise line shape characterization—such as monitoring excimer laser sources, characterizing photoresist absorption edges, or resolving narrow gas absorption lines—as well as for broader band measurements in environmental and industrial sensing. A numerical aperture of 0.11, coupled with low dark noise and a signal‑to‑noise ratio of 450, supports both low‑light measurements and high‑dynamic‑range spectral acquisition over integration times from 1.5 ms up to 65 s.

For maximum flexibility in system integration, the spectrometer provides both SMA905 fiber input and a free‑space optical interface. The SMA905 input simplifies connection to UV‑enhanced fibers and sampling probes for routine measurements above approximately 180 nm. For measurements deeper into the VUV, below about 180 nm where standard silica fibers exhibit strong absorption, the dedicated free‑space coupling path allows direct optical access, similar to what is found in more complex VUV bench systems. This design supports applications such as in‑line semiconductor process monitoring, plasma diagnostics, and high‑energy photochemistry studies that require robust coupling at shorter wavelengths.

On the electronics side, the VioNeer spectrometer supports USB Type B and Ethernet (RJ45) connectivity, along with a 16‑pin GPIO interface for triggering and synchronization in automated setups. This makes it easy to integrate into existing measurement platforms, OEM instruments, or industrial control systems where remote operation and data streaming are essential. The compact housing—approximately 180 mm × 144 mm × 59.9 mm and under 2 kg—allows the VioNeer to be mounted directly into equipment racks, optical enclosures, or mobile analytical systems without the footprint of traditional monochromator‑based setups.

Compared to many conventional UV‑VIS spectrometers that start above 190–200 nm, the VioNeer is specifically optimized to push further into the deep‑UV and VUV region. This enables more complete characterization of absorption edges, electronic transitions, and short‑wavelength emission lines that are inaccessible with standard laboratory instruments. Whether used for photoresist characterization in lithography R&D, monitoring trace species in gas and water analysis, or probing biomolecular structures via deep‑UV absorption, the VioNeer spectrometer offers a powerful combination of sensitivity, dynamic range, and wavelength coverage tailored to demanding next‑generation UV applications.