New IP-n162 photoresin

IP-n162 has a high refractive index of 1.62. Among Nanoscribe’s 2PP resins, the new printing material not only offers the highest refractive index but also the highest dispersion, at an Abbe number of 25. The optical properties of printed structures are therefore close to optical polymers typically used in injection molding, e.g. polycarbonate or polyesters. This allows easy and quick prototyping of microoptics, helping to avoid expensive iterations of diamond-milled injection molds. IP-n162 is suitable for a wide range of applications that require refractive or hybrid high-performance microoptics, for example, for miniaturized imaging systems and 3D sensing for AR/VR applications.

The photoresin features a high dispersion, expressed by its low Abbe number of 25. This is significantly different from Nanoscribe’s other photoresins and paves the way for the fabrication of compound optics consisting of elements with different dispersion. Here, IP-n162 and the lower refractive index resin IP-S can be a perfect match for creating achromatic optical systems on the microscale.

Another valuable property of IP-n162 is the low absorption in the infrared spectrum. Especially in the wavelength range between 1200 nm and 1550 nm, IP-n162 has a 10 times lower absorption than IP-S. This makes the new IP-n162 photoresin a perfect choice for applications in infrared optics, optical communication and photonics packaging where low absorption losses are critical.