Positive meniscus lenses is convex-concave lens thicker at the center than at the edges, which frequently used for beam focusing applications. Negative meniscus lenses is convex-concave lens thinner at the center than edges, which frequently used for beam expanding applications.

Titanium-doped Sapphire（Ti3+:Al2O3）crystals combine supreme physical and optical properties with broadest lasing range which is most widely used crystal for wavelength tunable lasers.

Barium fluoride (BaF2) shows good optical transmission over UV-IR windows in 0.15μm~12.5μm.

Dielectric Mirrors offer near total reflection, minimizing losses in nearly all optical systems. AOI=45°, R>99.5% (Rs>99.9%, Rp>99.2%). AOI=0°, R>99.8%

Zero order waveplate are constructed of two multiple order waveplates which is designed to give a retardance of zero full waves, plus the desired fraction. 1. Zero Order Waveplates-Cemented by Epoxy 2. Zero Order Waveplates-Optically Contacted 3. Zero Order Waveplates-Air-spaced

Dual Wavelengths Waveplate is a multiple waveplate that provide a specitfic retardance at two different wavelengths Operates as λ/2 @ λ1 & as λ/4 @ λ2 Dual Wavelength Operation 532 nm/1064 nm