Nd:YAG Harmonic Beamsplitter, 25.4 mm, 354.7 nm Refl., 532 nm Trans.: Beamsplitters

Nd:YAG Harmonic Beamsplitter, 25.4 mm, 354.7 nm Refl., 532 nm Trans.

10QM20HB.32

25.4 mm,532 nm,UV Grade Fused Silica,10-5 scratch-dig,45 °

Description

The 10QM20HB.31 High-Energy Nd:YAG Harmonic Beamsplitter is 1.0 in. (25.4 mm) in diameter with high reflectivity at 354.7 nm, and high transmission at 532 nm. The back surface is AR coated for 532 and 1064 nm. Our harmonic beam splitters are designed to separate Nd:YAG laser harmonics after frequency multiplication. These 25.4 mm diameter optics are precision polished select grade fused silica coated with hard refractory multilayers for high damage threshold. Harmonic beamsplitters are sometimes called Dichroic Filters or Beam Combiners.

Product Series Overview

High Energy NdYAG Laser Harmonic Beamsplitters

Technical Specs

Diameter

25.4 mm
Antireflection Coating

532 nm
Material

UV Grade Fused Silica
Surface Quality

10-5 scratch-dig
Angle of Incidence

45 °
Coating Code

HB.32
Surface Flatness

≤/10 at 632.8 nm over the clear aperture
Durability

MIL-C-675C, moderate abrasion million cycles
Chamfers

0.25-0.76 mm face width
Chamfers Angle Tolerance

45° ±15°

Cleaning

Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended see Care and Cleaning of Optics
Clear Aperture

> central 80% of diameter
Damage Threshold

5.0 MW/cm2 CW, 5.0 J/cm2 with 0.1-100 nsec pulses @ 1064 nm, typical
Diameter Tolerance

+0/-0.25 mm
Wedge

≤3 arc min
Efficiency

Ravg > 99.5% @ 354.7 nm; Tavg>95% @ 532 nm; AR<0.25% @ 532/1064 nm
Thickness

6.35 mm
Thickness Tolerance

±0.5 mm
Wavefront Distortion

≤/4 at 632.8 nm over the clear aperture