Norland OpticalAdhesive

Note: We are currently gathering more information on the optical properties of the NOA series adhesives and will post it as soon as it is available.

Norland Optic Adhesives are clear, one part adhesives that contain no solvents. When exposed to UV light, they gel in seconds and cure fully in minutes to give a tough resilient bond. Each of the six formulas listed below has been optimized to provide excellent bonding for specific applications. To cure these optical adhesives, they must be exposed to UV light.

NorlandProducts Inc.

Noa61 glue

Where n25 °C = Refractive Index at 25 °C for a specific wavelength (nm), and A, B and C are constants determined by the material. For the NOA61, NOA63 and NOA81 adhesives: A = 1.5375B = 8290.45C = -2.11046 x 108

Shelf LifeThese UV-curing adhesives have a shelf life of approximately 8 months. This time frame begins on the date the epoxy was packaged at the manufacturer. Upon receipt by the end user, Thorlabs guarantees that the remaining shelf life will be at least 3 months.

Using the Cauchy Equation below one can calculate the refractive index (n) at a specific wavelength (λ) for the NOA and NBA Series optical adhesives.