Off-axis parabolic mirror, with protective silver coating, 450 nm-20.0 μm MPM20152-90-AG

Off-axis parabolic mirror, with protective silver coating, 450 nm-20.0 μm — Model MPM20152-90-AG

Operating wavelength 450 nm-20.0 μm, Ø50.8 mm.

Product Description

• Material: Aluminum substrate
• Off-axis angle: 90°, 45°
• Working wavelength: 250 nm-450 nm, 450 nm-20.0 μm, 800 nm-20.0 μm optional
• Application: Beam collimation, focusing, deflection

Off-axis parabolic mirrors are surface mirrors whose reflective surface is a section taken from a parent parabolic surface. Off-axis parabolic mirrors can be used to focus collimated beams or collimate point sources, and their off-axis design allows the focal point to be separated from the optical path. Compared to lenses, using off-axis parabolic mirrors does not produce spherical aberration, chromatic aberration, and does not introduce phase delay or absorption loss, making them highly suitable for femtosecond pulsed lasers. Since metal coatings are easily oxidized, discolored, or peeled off in high-humidity environments, LBTEK's metal-coated off-axis parabolic mirrors have a layer of silicon dioxide protective coating on their surface to isolate the metal coating from direct contact with air, preventing oxidation of the metal coating and affecting optical performance. LBTEK offers three types of metal-coated off-axis parabolic mirrors: gold-coated, silver-coated, and UV-enhanced aluminum-coated. The angle between the focused beam and the collimated beam is called the off-axis angle. LBTEK provides off-axis parabolic mirrors with off-axis angles of 90° and 45°. For other customizations, please contact LBTEK technical support.

Off-axis parabolic mirror, with protective silver coating, 450 nm-20.0 μm

• Optical Material: Aluminum Substrate
• Working Range: 450 nm-20.0 μm
• Application: Beam collimation, focusing, deflection
• Off-Axis Angle: 90°, 45°

LBTEK offers silver-coated off-axis parabolic mirrors with working wavelengths ranging from 450 nm to 20 μm, which can focus collimated beams or collimate point sources without chromatic dispersion. Their off-axis design allows the focal point to be separated from the optical path. Additionally, silver-coated off-axis parabolic mirrors do not introduce phase delay or absorption loss, making them highly suitable for femtosecond pulse lasers. Since silver coatings are prone to oxidation, discoloration, or peeling in high-humidity environments, LBTEK's silver-coated off-axis parabolic mirrors are coated with a layer of silicon dioxide protective film to isolate the silver coating from direct contact with air, preventing oxidation and preserving optical performance. The bottom of LBTEK's silver-coated off-axis parabolic mirrors features three threaded mounting holes and two positioning holes arranged in a triangular pattern for convenient installation and use.