At the heart of every laser interferometer instrument is a laser source that enables a host of capabilities and features.

Opticalcoating process

Anti-reflection (AR) High-reflection (HR) Hydrophobic Oleophobic Standard Metal Reflectors • Gold, Silver, Aluminum Enhanced Metal Reflectors • Gold, Silver, Aluminum Optical Filters Dichroic Filters Neutral Density Filters Linear Variable Filters Ultraviolet Filters (UV Filters) Infrared Coatings (IR Coatings) Conductive Coatings Transparent Conductive Oxides Solderable Coatings Tribological Coatings

Anti reflective coating

We believe you cannot confidently make what you cannot measure, and therefore have invested in standard and custom metrology and inspection stations. Certified ISO 9001:2015. Lean manufacturing, including 6 Sigma methodologies and approaches to problem solving.

Ion assist, or Ion Assisted Deposition (IAD), is used to densify films prepared by PVD. While in the gas phase, molecules are accelerated by a beam of energetic ions (typically Argon and Oxygen) directed towards the substrate. The IAD-prepared filters are denser and demonstrate greater environmental stability than traditional PVD deposited films.

Unlike traditional PVD that typically uses refractory oxide starting materials, PARMS bombards an elemental target (usually Si or Nb) using a magnetically accelerated Argon/Oxygen plasma. The accelerated atoms transfer momentum to the target material which in turn ejects the element from the surface onto the substrates, forming a very thin (sub-monolayer) layer. In a different part of the chamber, an oxygen plasma oxidizes this layer, creating an oxide.

Opticalcoating jobs

Our commitment to finding the right solutions for difficult problems means that we are capable of doing what other engineers cannot. Some say we bend physics and solve the unsolvable. Can we? Maybe. What we know we can do is this: We ask questions and we dig, because sometimes the solutions people believe they need only scratch the surface.

Our largest chamber is capable of coating single 3 meter diameter substrates. We have techniques which enable coating to millimeter (mm) sizes on many other coating platforms.

Types of lens coating for glasses

Physical vapor deposition (PVD) is the process in which a solid material is heated and passes directly from a solid to a gas (sublimation) and then back again to a solid state as it condenses on a given substrate, usually while under vacuum. The traditional approach has been to use a resistive heating element to evaporate the materials. The thermally-prepared coatings were Omega’s bread and butter business for over 25 years.  To protect and preserve these filters for long-term stability, they are typically laminated with a coverslip after preparation.  Although they have fallen out of favor recently, they still offer several advantages over surface coatings.  Because the range in refractive index is much higher amongst these materials when compared to oxides, a much thinner coating stack can achieve similar results.  This reduces stress on the substrate, and can minimize wavefront distortions.  This becomes particularly important as the wavelengths of interest move into the infrared, where thicker layers are required.  These optical filters offer deep out-of-band blocking with low residual stress and stable spectral performance.

Optical coatingsapplications

Using a beam of electrons as a heat source, the PVD process is carefully controlled in temperature and rate, and augmented by specific chamber geometry. The physical thickness of each alternating layer of high and low refractive index material is precisely measured as it grows on the substrate. A single optical filter may contain upwards of several hundred layers to achieve the desired spectral response.

Our e-mail contact addresses have changed. Please use zygo.info@ametek.com for general inquiries. For service, zygo.support@ametek.com. Thank you.

We have the diffractive optics trifecta of multiple Ruling Engines, Holographic Mastering, and Lithographic exposure to create diffractive elements. Our in-house design and manufacturing processes provide standard or custom gratings for a range of applications, in both Original and Replicated formats.

© 2024 Zygo Corporation | Terms of Use | Privacy Policy | Cookie Policy | Unsubscribe | Do Not Sell or Share My Personal Information

Plasma Enhanced Chemical Vapor Deposition (PECVD) is a technique used to deposit thin films, including diamond-like carbon (DLC) coatings, onto various substrates. PECVD leverages plasma to enhance the chemical reactions required to deposit the coating material, resulting in high-quality, uniform films at relatively low temperatures.

Types ofoptical coatings

Plasma Assisted Reactive Magnetron Sputtering or PARMS is the technique in Omega's coating portfolio which provides the greatest spectral complexity.

Opticalcoating companies

ZYGO's proprietary laser source is designed and manufactured in Middlefield, CT and exceeds the power and lifetime of commercially available HeNe lasers. With a lifetime rating exceeding 60,000 hours, our laser is backed by an unmatched 3-year warranty, minimizing downtime and maximizing your ROI.  No other laser interferometer supplier can match the reliability and power, period.

The resulting thin-film layers are very dense and durable. State-of-the-art programmable logic enables in-process corrections to layer thicknesses. Such control of the coating process yields exceptionally precise spectral performance, high batch-to-batch repeatability and environmental durability.

Optical coatingsfor lenses

ZYGO’s patented QPSI vibration robust data acquisition, and DynaPhase vibration insensitive data acquisition, are both enabled by the ZYGO-made HeNe laser source.  Vibration causes fringes to wash-out, resulting in bad data or a signal that is impossible to acquire.  Shuttering the camera to a low duty cycle can freeze vibration on a frame-by-frame basis, however this reduces the amount of light available for a fringe signal.  The high-power Zygo laser source provides enough power to shutter to extremely small duty cycle and most effectively freeze vibration and air turbulence and enable reliable measurements in environments that were previously impossible to do so.

The ZYGO designed and manufactured HeNe laser source is included standard in the complete line of visible wavelength laser interferometers, providing excellent performance, longest lifetime and lowest cost of ownership on the market.

PECVD produces high-quality, uniform DLC films with excellent adhesion and customizable properties, making it ideal for a wide range of industrial, biomedical, optical, and electronic applications.

Omega Optical leverages several deposition technologies and chamber configurations to produce our specialty optical coatings. Each coating method utilizes a qualified materials set along with proprietary deposition parameters which we control to tailor transmission, reflection, absorption, scattering, density, durability, adhesion, optical, tribological, and electrical properties (whew!).

Learn more about the full suite of capabilities which are trusted by leading Global OEM’s and their Start-up challengers to deliver the right photons, to the right place, at the right time within their instrumentation.