Broadband dielectric laser mirrors are designed to have high reflectivity over a wide wavelength range and are ideally suited for beam control applications in the UV, visible, and near IR spectral ranges using broadband tunable laser sources or systems with multiple laser sources. For their laser mirrors, Alfa Chemistry can give clients broadband dielectric coatings that have high reflectance across a variety of spectral regions. Higher reflectivity is offered across a broad spectral range of up to several hundred nanometers by coatings on broadband dielectric mirrors. Our customized coatings are long-lasting, simpler to maintain, and more resistant to laser deterioration. Our broadband dielectric laser coatings are the ideal solution for many of the most demanding broadband reflectance applications.
Our Broadband Dielectric Coatings
Alfa Chemistry is aware of the performance requirements for laser mirrors, which include dependability, high laser damage threshold, efficient surface patterning, and minimal scattering. For any typical laser application, we offer the appropriate broadband dielectric coating. Our broad variety of coating methods, such as electron beam dielectrics and ion beam sputtering, enable performance in the visible and infrared wavelength ranges, respectively.
Our high-reflectivity broadband coating is intended for use in a wide range of visible wavelength applications. It has a relatively flat response in the bright-field range at normal and 45° incidence angles and can be used as a high-quality laser mirror for most wavelengths in the visible and infrared wavelength ranges. Because it is constructed of hard dielectric material that was formed by an electron beam, it has good wear, moisture, laboratory solvent resistance, and long-term high reflectivity. On the majority of optical glasses, it can be used.
Here are two Alfa Chemistry high-quality, high-damage-tolerance wideband dielectric coatings. On request, additional coatings are offered.
| Broadband Dielectric Coating 1 | Broadband Dielectric Coating 2 | |
|---|---|---|
| Substrate Material | BK7, BOROFLOAT, etc. | |
| Damage Threshold | 500W/cm2 1J/cm2, 10 nsec pulses within the wavelength range typical 1000W/cm2 2J/cm2, 10 nsec pulses within the wavelength range typical | |
| Wavelength Range | 488-694 (VIS band) | 700-950 (NIR band) |
| Reflectivity per Surface | Rs,Rp>99% | Rs>99%, Rp>98%@700-950 nm Ravg>80%@632.8 nm |
| Angle of incidence | 0 ~ 45° | 0 ~ 45° |
Additionally, we provide a variety of semi-custom reflectors, allowing you to select the wavelength, diameter, angle of incidence, and occasionally even the curvature. As a result, you can quickly locate the ideal fit for popular applications including laser lines, partial mirrors, Nd:YAG, Ti:sapphire, fiber, and diode lasers.
Coating Engineering
The foundation of Alfa Chemistry's competence is optical coating engineering. We draw on our wealth of knowledge to offer our clients the most reliable and powerful solutions. We are experts in developing unique coatings, enhancing processes, and designing coatings. We have the Ebeam, IBS, and IAD technologies to give you a variety of options so we can give you the best solution.
If you need technical advice, please contact our technical team to learn more about our high-quality services.