EKSMA Optical Components
| Brand | EKSMA |
|---|---|
| Origin | Lithuania |
| Manufacturer Type | Authorized Distributor |
| Import Status | Imported |
| Component Category | Optical Components |
| Coating Types | High Reflectivity, Laser Line, Broadband, Partial Reflecting, Laser Harmonic Separators, Anti-Reflection (Laser Line / Dual Band / Broadband), Metallic |
| Mirror Types | Dielectric, Dichroic, Metal-Coated (Protected Al/Ag/Au), AOI 0–45° |
| Window & Filter Types | Curved, Plano-Concave/Convex, Elliptical, Precision Thin, Optical Flats, UV/IR Materials (LiF, MgF₂, CaF₂, BaF₂, Sapphire, ZnSe, Si, Ge) |
| Lens Types | Plano-Convex/Biconvex/Biconcave/Plano-Concave/Axicon/Aspherical/Cylindrical, Substrates: BK7, UVFS, CaF₂ |
| Prism Types | Wedge, Pellin-Broca, Right-Angle, Corner Cube, Non-Polarizing/Fixed-Ratio Cube Beamsplitters |
| Polarizers | Brewster Windows, Thin-Film Polarizers, Cube Polarizing Beamsplitters, Glan-Laser (Calcite, α-BBO), Wollaston, Rochon, Waveplates (Zero-Order Air-Spaced/Achromatic/Dual-Wavelength, Low/Multiple Order), Fresnel Rhombs |
Overview
EKSMA optical components represent a comprehensive, high-precision portfolio engineered for demanding applications in laser systems, ultrafast optics, spectroscopy, quantum research, and industrial metrology. Designed and manufactured in Lithuania under strict ISO 9001-certified processes, these components leverage decades of expertise in thin-film deposition, precision polishing, and substrate material science. Each optical element is characterized by tightly controlled surface quality (typically λ/10 @ 633 nm), low wavefront distortion, and rigorous environmental stability testing. The core measurement principles governing performance—such as interference-based reflectance/transmittance control, Brewster-angle polarization management, birefringent phase retardation, and dispersion-compensated beam splitting—are implemented with traceable calibration against NIST-traceable reference standards. These components serve as foundational building blocks in setups requiring wavelength-specific spectral control (e.g., harmonic separation in Ti:sapphire or Nd:YAG systems), polarization fidelity (e.g., cavity dumping or quantum state preparation), or broadband transmission in harsh UV or IR environments.
Key Features
- Substrate versatility across UV-grade fused silica (UVFS), BK7, calcium fluoride (CaF₂), lithium fluoride (LiF), barium fluoride (BaF₂), sapphire, zinc selenide (ZnSe), silicon (Si), and germanium (Ge)—enabling operation from 120 nm (VUV) to 12 µm (MIR).
- Multi-layer dielectric coatings deposited via ion-assisted e-beam evaporation, achieving >99.9% reflectivity at specified laser lines (e.g., 1064 nm, 532 nm, 355 nm, 266 nm) and <0.25% residual absorption per surface.
- Waveplate retardation accuracy maintained within ±λ/300 over operating temperature range (−20 °C to +70 °C), validated per ISO 10110-5.
- Beamsplitter extinction ratios exceeding 1000:1 (p:s) for polarizing cubes and >10⁴:1 for Glan-type prisms, verified using calibrated photodetectors and lock-in amplification.
- Surface flatness certified to λ/10 PV (peak-to-valley) or better on optical flats and precision windows; scratch-dig compliance to MIL-PRF-13830B 10–5.
- All metallic mirrors feature protected aluminum, silver, or gold layers with adhesion-promoting chromium or nickel-chromium interlayers, ensuring >95% average reflectance across UV-VIS-NIR and thermal cycling durability (>1000 cycles, −40 °C to +85 °C).
Sample Compatibility & Compliance
EKSMA components are compatible with standard optomechanical mounting systems (e.g., Thorlabs SM1/SM2, Newport 8-32 tapped holes) and integrate seamlessly into vacuum-compatible, UHV, and cleanroom environments. Windows and lenses meet ASTM F2735-19 for UV transmittance uniformity and ISO 10110-7 for coating durability (adhesion tested per ISO 2409). Polarizing optics comply with ISO 15382:2017 for extinction ratio repeatability and angular acceptance. Laser-line mirrors and filters conform to ISO 11551 for laser-induced damage threshold (LIDT) reporting—tested at 1064 nm, 10 ns, 20 Hz, with typical values ≥5 J/cm² (CW) and ≥15 GW/cm² (pulsed). Documentation includes full spectral curves (350–2000 nm), LIDT test reports, and RoHS/REACH declarations. Traceability to national metrology institutes is provided upon request for GLP/GMP-aligned validation protocols.
Software & Data Management
While EKSMA optical components are passive elements, their integration into automated optical systems is supported through standardized spectral data formats (ASCII .dat, CSV, and XML-compliant SPECTRUM files) compatible with Zemax OpticStudio, CODE V, FRED, and Python-based ray-tracing libraries (e.g., rayoptics, PyOptica). Coating design files (including layer stack composition, thickness, and refractive index profiles) are available under NDA for customers performing custom spectral modeling. All product datasheets include embedded metadata compliant with IEEE 1596.1 (Optical Component Data Exchange Standard), enabling direct import into laboratory asset management systems. Audit trails for manufacturing batch records, coating run logs, and interferometric inspection reports are retained for 15 years per ISO 9001:2015 clause 8.5.2.
Applications
- Laser resonator construction: HR/OC mirrors, harmonic separators, and intra-cavity waveplates for frequency doubling (SHG), tripling (THG), and optical parametric oscillation (OPO).
- Ultrafast pulse compression: chirped mirrors, GTI mirrors, and dispersion-compensating prisms for sub-10-fs pulse shaping in CPA and OPCPA systems.
- Spectroscopic instrumentation: bandpass filters, dichroic beamsplitters, and UV-transmitting windows for UV-Vis-NIR spectrometers and FTIR platforms.
- Quantum optics experiments: high-extinction polarizers, non-polarizing cubes, and zero-order waveplates for Bell-state analysis, quantum tomography, and entanglement generation.
- Industrial laser processing: protective windows, focusing lenses, and collimators for CO₂, fiber, and excimer laser delivery systems operating at kW-level average power.
- Aerospace & defense: ruggedized ZnSe and Ge optics for thermal imaging, missile seeker heads, and LIDAR transmitter/receiver modules compliant with MIL-STD-810H environmental stress screening.
FAQ
Are EKSMA optical components suitable for ultra-high-vacuum (UHV) applications?
Yes—windows, lenses, and mirrors with metallic or dielectric coatings on low-outgassing substrates (e.g., UVFS, CaF₂, ZnSe) are routinely qualified for UHV environments (<10⁻⁹ mbar); outgassing rates measured per ASTM E595 confirm TML <0.1% and CVCM <0.01%.
Do you provide LIDT test data for specific pulse durations and repetition rates?
LIDT is reported per ISO 21254 for standard conditions (1064 nm, 10 ns, 20 Hz, 1 mm spot); customized testing at other wavelengths, pulse widths (fs–ms), or repetition rates (1 Hz–MHz) is available upon request with formal test protocol agreement.
Can EKSMA supply custom coating designs outside the catalog?
Yes—custom multilayer designs (e.g., ultra-broadband HR from 300–2000 nm, dual-band AR for 532/1064 nm, or notch filters with <0.1 nm bandwidth) are developed in collaboration with our thin-film engineering team; lead time typically 6–10 weeks.
What documentation accompanies each shipment?
Each component ships with a Certificate of Conformance (CoC), spectral transmission/reflection curve, surface quality report, and coating durability summary; full calibration records and interferograms are available as optional add-ons.
Are there options for mounting or kinematic adaptation?
Standard unmounted optics are supplied; threaded mounts (SM1, SM2), kinematic cells (KCB1, KM100), and custom machined housings can be ordered separately or integrated pre-assembled per customer mechanical drawings.
