High Refractive Index Imprint Resin

High Refractive Index Imprint Resin

This nanoimprint resin designed for diffractive waveguides features high refractive indices of 1.7, 1.8 and 1.9 as well as excellent optical properties including high transmittance. Compatible with a variety of master template resins, it supports fabrication of diverse imprinted structures. Custom formulation development is available upon customer requirements.

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Product Description 

Our nanoimprint resin for diffractive waveguides boasts outstanding optical performances including high refractive indices of 1.7, 1.8 and 1.9 as well as high transmittance. It features excellent filling capacity and is compatible with various nanoimprint structures, widely applied in the fabrication of wafer-level micro-nano optical devices.

Product Spenifications 

Status Test Item Units NP7306D NP8306D NP9302K NP5305B
Before Curing Solvent PGMEA PGMEA PGMEA PGMEA-Dilutable
Viscosity cps 3±1 2~4 100±30
Solid Content % 30±3 100
Film Forming Process Spin Coating 1000rpm-3000rpm, 35s (Film thickness after curing 300nm–800nm) 2500rpm, Film thickness 5μm
Pre-bake 80℃, 1min (Hotplate)
UV Curing N₂, 365nm UV-LED:3000mJ/cm²
Post-bake 100℃, 5~10 min (Hotplate) (Optional) 120℃, 5~10 min
After Curing RI n@589nm 1.72±0.01 1.83±0.01 1.91±0.01 1.50±0.02
Transmittance % >85 >90
Haze % 0.2±0.1 0.15±0.02 <0.2

Product Features 

● High refractive index and low haze;

Enhanced optical performance and improved light extraction efficiency;

 Easy processing:

① Compatible with various master template resins

② Clear and complete pattern transfer

③ Suitable for a wide range of imprint structures

● Customizable formulation:

① Viscosity adjustable by solvent dilution

② Custom development available per customer requirements

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We will respond to your inquiries via email within 24 hours.