Mirrors

Optical Mirrors are designed to reflect incident light for laser and imaging applications such as beam steering, interferometry, illumination, and more. Industries that utilize Optical Mirrors are bio-medical, life sciences, astronomy, metrology, semiconductor, and more. OptoSigma offers a broad selection of optical mirrors to meet virtually any application. Some examples are, Super Mirrors, or, low PPM mirrors, Spherical Mirrors, Femtosecond Laser Mirrors, also known as Low or Negative Dispersion Mirrors, Dielectric Mirrors, Metalic Mirrors, and Laser Line Mirrors. If one of our hundreds of catalog mirrors do not meet your requirements, send us a request for a custom mirror.

Selection Guide for Optical Mirrors

Groups	Description	Mirror Shapes and Sizes(mm)	Average Reflectivity and Wavelength Ranges	Flatness Options	Material Options	Mount Families
Broadband Metallic Mirrors	These mirrors are affordable with good reflectance in a wide range of wavelength. Mirrors are available in aluminum, silver and gold coating and at any angle of incidence. Light absorption coating, reflection is slightly reduced.	Round: φ10, (0.5”), 15, 20, 25, (1.0”), 30, 40, 50, (2.0”), 60, 80, 100, 130, 150 Square: 10, (0.5”), 15, 20, 25,(1.0”), 30, 40, 50, (2.0”), 60, 80, 100, 130, 150, 250 Rectangular: 10x15, 15x25, 20x30, 25x35	Aluminum 80-95% (See Graph) Silver 97.5%(450～2000nm) Gold 80-95% (See Graph)	λ, λ/4, λ/10, λ/20	Hard Glass, BK7	Gold Mirrors Silver Mirrors Aluminum Mirrors
Dielectric Mirrors	These mirrors are designed for high reflectance with low loss. The coating is resistant to hard scratches. To be used from 0-45 degrees angle of incidence.	Round: φ10, (0.5”), 15, 20, 25, (1.0”), 30, 40, 50, (2.0”)	95-99% - 193, 248, 266, 355, 532, 1064nm 97-98% - 245-700, 400-1100, 400-2000, 300-2000nm >99% - 157, 193, 248, 266, 282, 308, 325nm	λ/10	BK7	Laser Line Dielectric Broadband Dielectric Wide Angle Dielectric High-Power Dielectric
Super Mirrors	Our Super mirrors are ultra-high performance mirrors which provide near 100% reflection in order to maximize the performance of a Fabry-Perot resonator cavity.	Round: (0.5”), 25, (1.0”), 30, 50	>99.99 @ 532nm >99.99 @1064nm	λ/10	Synthetic Fused Silica	Super Mirrors
Femtosecond Laser Mirrors	This mirror is designed to provide low wavelength dispersion suitable for use with ultra-short pulse lasers with 100 femtosecond or less.	Round: (0.5”), (1.0”), 30	>99.8 @ 700-900	λ/10	Synthetic Fused Silica, BK7	Low Dispersion Negative Dispersion
High Surface Flatness Mirrors	High Surface Accuracy Mirrors provide a guaranteed surface accuracy of λ/10 after coating.	Round: (0.5”), (1.0”), 30, 50, (2.0”)	＞99% @ 248, 266, 308, 355, 532, 1064nm	λ/10	Synthetic Fused Silica	High Surface Flatness Mirrors Mounted, High Surface Flatness Mirrors
Curved Mirrors	A curved mirror converts diverging light from a point of light source into parallel light.	Round: φ10, (0.5”), 15, 20, 25, (1.0”), 30, 40, 50 Ellipse: φ64, 76, 86, 105, 113, 124, 128, 148 Paraboloid: φ(0.5”),15, 17, 30	Aluminum 80-95% (See Graph)	λ/2	BK7, Tempax	OAPs Paraboloid Mirrors Ellipsoidal Mirrors Concave Aluminum w/ Protective Coating Concave Aluminum w/o Protective Coating