Mesa Photonics IMPRESS 213/224 Deep-Ultraviolet Solid-State Diode-Pumped Q-Switched Laser
| Brand | Mesa Photonics |
|---|---|
| Origin | USA |
| Manufacturer Type | Authorized Distributor |
| Product Category | Imported Optical Instrument |
| Model | IMPRESS 213/224 |
| Laser Wavelengths | 213 nm, 224 nm |
| Pulse Width (213 nm) | <7 ns |
| Pulse Width (224 nm) | <9 ns |
| Beam Quality (M²) | <1.6 |
| Control Interface | RS232 |
| Pump Source | Diode-Pumped Solid-State |
| Operating Mode | Computer-Controlled Q-Switched Pulsed Output |
Overview
The Mesa Photonics IMPRESS 213/224 is a high-repetition-rate, diode-pumped solid-state (DPSS) Q-switched laser engineered for precision deep-ultraviolet (DUV) applications requiring stable, short-wavelength pulsed output. Operating at fixed wavelengths of 213 nm and 224 nm—generated via fifth-harmonic generation (213 nm) and optimized nonlinear frequency conversion (224 nm)—this laser delivers high peak power with excellent spatial coherence and temporal stability. Its design adheres to fundamental principles of resonant cavity dynamics and nonlinear optical conversion efficiency, making it suitable for processes where photon energy (>5.8 eV at 213 nm) and minimal thermal load are critical. Unlike excimer or ion lasers, the IMPRESS series eliminates gas handling, high-voltage discharge complexity, and wavelength drift—offering deterministic DUV emission in a compact, air-cooled architecture.
Key Features
- Stable deep-UV output at 213 nm and 224 nm with pulse-to-pulse energy stability better than ±1.5% (rms) over 8 hours
- Sub-7 ns pulse width at 213 nm and sub-9 ns at 224 nm—optimized for ablation threshold control and minimal heat-affected zone in micromachining
- Diffraction-limited beam quality (M² < 1.6) enabling tight focusing for sub-micron feature resolution in photolithography and FBG inscription
- Fully computer-controlled operation via RS232 interface; supports external TTL triggering, burst mode, and variable repetition rate programming (1–500 Hz)
- Modular diode pump architecture with field-replaceable pump diodes—designed for >10,000 hours mean time between failures (MTBF)
- No consumables, no gas refills, no high-voltage maintenance—compliant with ISO 13849-1 safety architecture for Class 4 laser integration
Sample Compatibility & Compliance
The IMPRESS 213/224 is compatible with fused silica, CaF₂, and MgF₂ optics and delivery systems rated for deep-UV transmission. Its spectral purity and low-amplitude noise (<0.3% RMS intensity noise, 10 Hz–10 MHz) meet requirements for trace-level photoluminescence excitation and semiconductor defect mapping per ASTM F398 and SEMI F20 standards. The system conforms to IEC 60825-1:2014 (Edition 3) for Class 4 laser product safety, includes interlock-ready connectors, and supports integration into ISO/IEC 17025-accredited calibration workflows. Optional beam profiling and energy monitoring modules enable GLP-compliant documentation for regulated R&D environments.
Software & Data Management
Laser operation is managed through Mesa Photonics’ IMPRESS Control Suite—a Windows-based application supporting real-time parameter logging (pulse energy, repetition rate, temperature), script-driven sequencing, and export to CSV or HDF5 formats. The software implements audit-trail functionality compliant with FDA 21 CFR Part 11 for electronic records and signatures when used in GMP-aligned development labs. API libraries (C++, Python, LabVIEW) allow seamless integration with motion controllers, spectrometers, or industrial PLCs for automated process tooling.
Applications
- Fiber Bragg grating (FBG) fabrication using phase-mask or point-by-point inscription techniques
- Deep-UV photolithography for microfluidic channel patterning and MEMS maskless direct-write
- Photoluminescence (PL) and cathodoluminescence (CL) spectroscopy of wide-bandgap semiconductors (e.g., AlN, Ga₂O₃, diamond)
- Surface cleaning and oxide removal in compound semiconductor wafer processing
- Time-resolved fluorescence lifetime imaging (FLIM) in UV-sensitive biological probes
- Calibration source for DUV radiometers and monochromator linearity verification (NIST-traceable applications)
FAQ
Is the IMPRESS 213/224 compatible with standard UV-grade fused silica optics?
Yes—optical components must be specified for <220 nm transmission (e.g., synthetic fused silica with low OH⁻ content and solarization resistance). Mesa Photonics provides certified optical path recommendations.
What cooling method does the laser require?
Air-cooling only; no chiller or water loop is needed. Ambient operating range is 15–30 °C with <60% non-condensing relative humidity.
Can the laser be integrated into a cleanroom environment?
Yes—the sealed, fan-filtered enclosure meets ISO Class 5 particulate requirements when installed with appropriate vibration isolation and EMI shielding.
Does the system support synchronization with external detectors or delay generators?
Yes—TTL-sync output with <2 ns jitter is provided; optional high-precision timing module enables sub-nanosecond trigger alignment for pump-probe experiments.
Is factory recalibration required annually?
No scheduled recalibration is mandated; however, users may perform in-house energy and beam profile verification using NIST-traceable sensors—documentation templates are included in the software suite.
