Features

Thin dielectric films with different refractive indices are coated in multiple layers, and light interference is used to allow the selection of transmission or reflection of light from a light source at the desired wavelengths.

The number of layers of thin dielectric film coated can be from a few to several hundred, which allows various characteristics to be realized.
The shape of the substrate to be coated can be anything from flat to a parabolic mirror.

Applications

Lamp reflectors.
This mirror can be applied to various fields, including laser processing machines.

Example characteristics

Reflecting a reference light wavelength of 950 nm, it can allow high transmittance of a dominant laser light source wavelength of 1,064 nm.
This is a short-pass dichroic mirror not affected by the P- and S-polarized light from a light source.
It is characterized by enabling high reflection of P-polarized light in the reflection band and high transmittance of S-polarized light in the transmission band.
This is an example of allowing total transmission of a dominant laser light source wavelength of 1,064 nm and total reflection of higher harmonics.
It demonstrates its effects in the effective use of laser light source wavelength.

Features

This is an optical component that separates transmitted light and reflected light at the desired ratio. It is also possible to separate P-polarized and S-polarized light from incident light (PBS: Polarizing Beam Splitter) and to produce a type with less polarization dependence (N-PBS: Non-Polarizing Beam Splitter).

Applications

Laser processing machines, measuring instrument, semiconductor exposure apparatus, FPD exposure apparatus and cameras

Example characteristics

PBS(Polarization Beam Splitter)

Cube type
Two rectangular prisms are bonded together and a dielectric multilayer film is applied to the slope of one prism to separate the P- and S-polarized components. It separates a single wavelength of the near-infrared region from the ultraviolet region, and the P- and S-polarized components of the visible region.
We design the wavelength, angle of incidence and extinction ratio to meet customer requirements. We also accept orders for optical contact lenses.

Plate type
By applying a dielectric multilayer film onto a substrate, it is possible to separate the P- and S-polarized components of a single wavelength or narrow range of wavelengths within the wavelength range from the ultraviolet region to the near infrared region. We design the wavelength, angle of incidence and extinction ratio to meet customer requirements. It has excellent light and heat resistance and is suitable for laser applications.

BS(Beam Splitter)

By applying a dielectric multilayer film onto a substrate, it is possible to separate specific wavelengths in two directions at the desired ratio within the wavelength range from the ultraviolet region to the infrared region.
We design the wavelength, angle of incidence and extinction ratio to meet customer requirements.