Teledyne Scientific & Imaging fabricates and manufactures Silicon microlenses using advanced processing techniques. We use Reflow and Grayscale fabrication methods to achieve high quality, cost efficient microlenses. Reflow involves patterning polymeric materials on substrates and then melting the polymer to form ideal spherical surfaces. Lenses produced by this method have a wide range of design parameters and numerical apertures, and aspheric design over many conic values.
Grayscale photolithography is used in fabricating asymmetric micro-optic structures. This technique enables complex optical structures to be fabricated including full fill-factor lens arrays, kinoform and Fresnel lens patterns, concave and off-axis lenses, and diffraction gratings.
Refractive and diffractive microlens arrays and optical components
Variety of materials including Silicon Quartz (fused Silica), many III-V or II-VI semiconductor and polymeric materials
Reflow and Grayscale fabrication
ISO 9001 certified manufacturing operation at RSC including a variety of plasma etch/mill tools
Class 100 cleanroom facilities, diagnostic instruments, including phase-shifting interferometric surface profilers, AFM, SEM, and TEM instruments
Expert staff with knowledge of materials, optical design, modeling, and manufacture process engineering
This type of grating is the holographic counterpart of the classically ruled concave grating, invented by Rowland in the 19th century. The Rowland grating has straight grooves which are equally spaced along a chord of the concave surface.
Laser tuning gratings are holographic gratings specially designed for wavelength tuning of lasers, such as dye lasers, Ti-sapphire, or external cavity diode lasers. The groove depth is optimized to yield maximum efficiency for one state of polarization.
The gratings are holographically recorded with two highly collimated, clean and homogeneous beams, which give straight and equispaced grooves. The diffracted light from these gratings is free from ghost spectral lines. The randomly scattered light is as low as that from a good front surface aluminium mirror.
These gratings are especially suited for use in laser pulse compression experiments. High diffraction efficiency, in combination with good spectral quality and high damage resistance makes these gratings useful in all kinds of laser pulse applications; both pulse compression using optical fibre grating pairs, and for amplification of pulses with chirped pulse amplification.
Spectrogon manufacture high quality, holographically recorded, blazed profile gratings specifically for use in the UV region of the spectrum. These gratings are available in a range of groove densities between 300-2400 gr/mm. All are nominally blazed at 220 nm in the Littrow configuration. The processes used to manufacture these UV gratings were developed for use in making gratings for the soft x-ray region (1-10 nm) and are therefore designed to have very low stray and scattered light.
