ZOLIX FC Series Visible-Light Framing Camera

Overview

The ZOLIX FC Series Visible-Light Framing Camera is a high-speed, multi-channel intensified imaging system engineered for ultrafast transient phenomenon capture in the visible spectrum (350–850 nm). Unlike conventional high-speed cameras relying on mechanical shutters or rolling electronic readout, the FC Series employs a synchronized array of gated image intensifiers coupled with high-resolution sCMOS sensors and precision optical beam-splitting optics. Each channel operates as an independently triggered, nanosecond-gated imaging path—enabling simultaneous acquisition of 2, 4, or 8 temporally resolved frames from a single event. The core measurement principle leverages photocathode-based electron multiplication under precisely timed voltage gating, followed by phosphor screen conversion and sCMOS digitization. This architecture delivers sub-nanosecond inter-frame timing control (minimum inter-frame interval: 1 ns), corresponding to effective framing rates approaching 1 GHz for 2-frame configurations. The system is designed for laboratory environments requiring deterministic temporal sampling of non-repetitive, irreversible events—such as combustion initiation, electrical breakdown, laser-induced plasma expansion, or shockwave propagation—where statistical averaging is not viable.

Key Features

• Multi-channel architecture supporting 2-, 4-, or 8-frame acquisition per trigger event, with fully independent gating and delay control per channel
• Nanosecond-level timing fidelity: ≤1 ns resolution in both gate width adjustment and inter-channel delay tuning; intrinsic trigger latency <120 ns ensures precise synchronization with external diagnostics (e.g., photodiodes, oscilloscopes, Q-switched lasers)
• High spatial fidelity: >30 line pairs per millimeter (lp/mm) measured at Nyquist-limited MTF, enabled by 18 mm diameter Gen III image intensifiers and diffraction-optimized relay optics
• Large-format sCMOS sensor: 2048 × 2048 pixels, 6.5 µm pixel pitch, 13.3 × 13.3 mm active area, 16-bit digitization for dynamic range >85 dB and low read noise (<2 e⁻ RMS)
• Flexible gating range: adjustable gate widths from 3 ns (full-width-at-half-maximum) up to continuous (DC) mode, supporting both ultrafast snapshot capture and time-integrated luminescence monitoring
• Full-system synchronization: integrated master clock distribution, programmable TTL/PECL trigger inputs, and hardware-level interlock for safe operation in high-voltage or high-energy experimental setups

Sample Compatibility & Compliance

The FC Series is optimized for direct imaging of self-luminous or laser-illuminated targets emitting within the 350–850 nm band—including flame chemiluminescence (CH*, C₂*, OH*), plasma continuum radiation, spark emission spectra, and fast bioluminescent transients. It interfaces seamlessly with standard C-mount and F-mount lens systems, including UV-enhanced, NIR-corrected, and telecentric objectives. For quantitative applications, the system supports radiometric calibration via NIST-traceable neutral density filters and calibrated light sources. All firmware and acquisition software comply with IEEE 1588-2019 (PTPv2) for distributed time-stamping across multi-instrument experiments. The hardware design meets IEC 61000-6-3 (EMC emission) and IEC 61000-6-2 (immunity) standards. Data provenance and auditability are supported through optional GLP/GMP-compliant metadata embedding—including timestamped trigger logs, sensor temperature history, gain settings, and user-defined experiment annotations.

Software & Data Management

ZOLIX FC Control Suite is a native 64-bit Windows application providing real-time preview, hardware-level parameter configuration, and post-acquisition analysis. Key capabilities include: synchronized multi-channel delay/gate mapping with visual timeline editor; automatic dark-frame and flat-field correction; ROI-based photon counting and intensity profiling; export to HDF5, TIFF stack, or MATLAB .mat formats with embedded EXIF-style metadata; and batch processing pipelines for time-resolved spectral centroid tracking or velocity vector field reconstruction (e.g., via PIV-compatible frame pairs). The software supports FDA 21 CFR Part 11 compliance packages upon request—including electronic signatures, audit trails, role-based access control, and data integrity validation reports. Remote operation via TCP/IP API enables integration into LabVIEW, Python (PyVISA), or MATLAB automation frameworks.

Applications

• Time-resolved combustion diagnostics: flame kernel development, turbulent flame front propagation, and soot formation dynamics in internal combustion engines and gas turbines
• Laser-induced breakdown spectroscopy (LIBS) and plasma plume evolution studies, including electron density estimation via Stark broadening analysis
• Explosive detonation physics: early-stage reaction zone imaging, shock-front luminosity mapping, and metal jet formation visualization
• Pulsed power and high-voltage engineering: vacuum arc initiation, surface flashover progression, and wire-array Z-pinch dynamics
• Ultrafast biophotonics: single-event bioluminescent burst kinetics in genetically engineered cell cultures or enzymatic reactions
• Material ablation studies: femtosecond-to-microsecond laser-material interaction sequences, including phase explosion, vapor shielding, and recoil pressure effects

FAQ

What is the minimum inter-frame interval achievable with the 8-channel configuration?
The minimum inter-frame interval is 1 ns for any channel count. However, total acquisition window scales linearly with channel number—for example, 8 frames at 1 ns spacing require a total temporal window of 7 ns (frame 1 to frame 8).

Can the FC Series be synchronized with external laser systems operating at 1 kHz repetition rate?
Yes—via programmable external trigger input with jitter <50 ps RMS when using PECL-level signals. The system supports burst-mode triggering and can be configured to acquire one multi-frame sequence per laser pulse.

Is radiometric calibration available as a factory service?
Yes. ZOLIX offers optional NIST-traceable spectral responsivity calibration across 350–850 nm, delivered with certificate and correction LUT files for quantitative intensity reconstruction.

Does the sCMOS sensor support region-of-interest (ROI) readout to increase effective frame rate?
No—ROI readout is disabled during gated acquisition to preserve full-frame temporal fidelity and avoid charge transfer artifacts. All frames are captured at full 2048×2048 resolution.

What cooling options are available for extended exposure stability?
The sCMOS sensor is thermoelectrically cooled to −10 °C ±0.1 °C, with optional liquid-cooled variants available for continuous multi-hour operation under thermal load.