MiXran Meg1078 High-Precision Plane Mirror
| Brand | MiXran |
|---|---|
| Model | Meg1078 |
| Optical Component Type | Plane Mirror |
| Available Substrates | Fused Silica, BK7, CaF₂ (optional) |
| Standard Coating Options | Protected Aluminum (400–2000 nm), UV-Enhanced Aluminum (250–2000 nm), Protected Silver (450–20,000 nm), Protected Gold (700–20,000 nm) |
| Surface Flatness | λ/20 @ 633 nm (typ.), λ/10 @ 633 nm (optional) |
| Surface Quality | 10-5 scratch-dig (MIL-PRF-13830B) |
| Clear Aperture | ≥90% of nominal diameter/side |
| Thickness Tolerance | ±0.1 mm |
| Parallelism | <3 arcsec |
| Bevel | 0.2–0.5 mm × 45° (standard) |
Overview
The MiXran Meg1078 is a high-precision plane mirror engineered for demanding optical alignment, interferometry, beam steering, and cavity stabilization applications in research laboratories, metrology facilities, and industrial laser systems. Designed around precision-polished optical substrates—including standard BK7, fused silica, and optional CaF₂—the Meg1078 delivers exceptional wavefront fidelity through stringent surface flatness control (λ/20 typical at 633 nm, upgradable to λ/10) and sub-arcsecond parallelism (<3 arcsec). Its performance is rooted in deterministic polishing processes, interferometric verification using Zygo or equivalent phase-shifting interferometers, and ISO 10110-compliant surface specification documentation. Unlike generic reflective optics, the Meg1078 integrates metrology-grade mechanical stability with spectral versatility across UV-VIS-NIR-MIR bands—enabling consistent reflectance performance under controlled environmental conditions (20 ± 0.5 °C, 40–60% RH).
Key Features
- Precision substrate options: BK7 (standard), fused silica (low thermal expansion, UV-transmissive), and calcium fluoride (deep-UV compatible)
- Four certified coating variants: protected aluminum (broadband VIS-NIR), UV-enhanced aluminum (optimized from 250 nm), protected silver (highest broadband reflectance >98% from 450–20,000 nm), and protected gold (superior IR performance >97% from 700–20,000 nm)
- Surface flatness certified to λ/20 @ 633 nm (RMS), with optional λ/10 certification for ultra-stable cavity or heterodyne interferometry use cases
- Surface quality rated to 10-5 scratch-dig per MIL-PRF-13830B, verified via automated dark-field inspection
- Clear aperture guaranteed ≥90% of nominal dimension, ensuring full utilization in collimated or focused beam paths
- Controlled thickness tolerance (±0.1 mm) and parallelism (<3 arcsec) support accurate ray-tracing modeling and multi-element optical design integration
- Standard protective bevel (0.2–0.5 mm × 45°) mitigates edge chipping during mounting and handling
Sample Compatibility & Compliance
The Meg1078 is compatible with standard kinematic mirror mounts (e.g., Thorlabs KM100, Newport UH1), optomechanical breadboards, and vacuum-compatible stages when specified with low-outgassing adhesives or direct-bonded mounting solutions. All coatings are deposited via electron-beam evaporation under high-vacuum conditions (≤5×10⁻⁶ Torr) and overcoated with SiO₂ or MgF₂ protective layers to ensure environmental durability (per ISO 9211-3 for coating adhesion and humidity resistance). The product conforms to ISO 10110-7 for surface irregularity reporting and supports traceable calibration documentation upon request—essential for GLP-compliant optical test setups and ISO/IEC 17025-accredited laboratories.
Software & Data Management
While the Meg1078 is a passive optical component, its performance data—including measured interferograms, spectral reflectance curves (250–20,000 nm), and surface roughness profiles (measured via AFM or white-light interferometry)—are delivered digitally in standardized formats (CSV, ZMX, STEP). Each unit ships with a unique serial-numbered Certificate of Conformance (CoC) containing full metrology records aligned to NIST-traceable reference standards. For integration into automated optical assembly lines or digital twin workflows, MiXran provides optional API-accessible metadata endpoints compliant with OPC UA and IEEE 1451.4 transducer electronic data sheet (TEDS) conventions.
Applications
- Laser cavity end mirrors and folding mirrors in CW/pulsed Ti:sapphire, Nd:YAG, CO₂, and quantum cascade laser systems
- Reference surfaces in Michelson, Mach-Zehnder, and Twyman-Green interferometers
- Beam combiners and dichroic steering elements in multi-wavelength spectroscopy platforms
- Alignment references in synchrotron beamlines, EUV lithography prototypes, and gravitational wave detector path stabilization subsystems
- Calibration standards for reflectometer validation (ASTM E430, ISO 9211-2)
- Vacuum- and cryogenic-compatible variants available for space-qualified instrumentation and low-temperature physics experiments
FAQ
What is the maximum incident angle for optimal reflectance performance?
For all coating types, the Meg1078 is optimized for near-normal incidence (0° ± 5°). Performance beyond ±15° requires custom coating design and angular reflectance characterization.
Can I request a custom substrate material not listed in the standard catalog?
Yes—custom substrates including sapphire, silicon, or ZnSe are available under NDA with minimum order quantities and extended lead times.
Is the λ/10 flatness option suitable for gravitational-wave interferometer applications?
Yes; the λ/10 variant meets baseline specifications for prototype Fabry–Pérot cavities and is supplied with full Zernike polynomial decomposition reports.
Do you provide mounting hardware or adhesive recommendations?
Mounting solutions are application-specific; we supply detailed torque specifications, CTE-matched shim recommendations, and low-outgassing epoxy guidelines (e.g., Torr-Seal™, Epotek 353ND) upon technical consultation.
How is coating durability validated for long-term operation in cleanroom environments?
All coated mirrors undergo 24-hour damp heat testing (IEC 60068-2-30), abrasion cycling (ISO 9211-4), and spectral stability monitoring over 1,000 hours under continuous 350 nm UV exposure.
