The Quantel by Lumibird EverGreen Twins is a high-performance, four-pulse Nd:YAG laser system designed for advanced particle image velocimetry (PIV), fluid mechanics and flow visualisation applications. Combining two synchronised EverGreen dual-pulse laser systems, it delivers four precisely overlapped laser pulses at 532 nm, enabling researchers to capture complex flow dynamics with enhanced temporal resolution and an extended velocity measurement range.
The EverGreen Twins is available in three energy configurations, delivering 4 × 60 mJ, 4 × 125 mJ or 4 × 175 mJ per pulse sequence at a repetition rate of 15 Hz. Its four-pulse architecture enables advanced PIV techniques, allowing users to investigate acceleration and transient flow behaviour in addition to conventional velocity measurements. The precisely overlapped green beams produce a consistent illumination field, supporting reliable particle tracking and correlation analysis.
Designed for demanding laboratory and field environments, the EverGreen Twins combines a rugged, compact construction with practical features for straightforward deployment. The laser head is IP66 sealed and compliant with MIL-STD-810 requirements for vibration and shock resistance. Grab-and-go handles, quick-disconnect cables and an integrated cooling and electronics unit simplify transportation and setup. The system is designed to move from its shipping case to laser operation in less than 10 minutes.
The EverGreen Twins also offers long-term operational reliability, with a two-year warranty covering the system, optics and beam overlap. Flashlamps are guaranteed for up to 100 million shots, subject to the manufacturer’s warranty conditions.
Typical applications include particle image velocimetry (PIV), laser-induced fluorescence (LIF), combustion research, fluid mechanics and advanced flow diagnostics. Its four-pulse capability makes it particularly suitable for experiments requiring high temporal accuracy and detailed analysis of rapidly changing flow fields.
