Optical Materials Express

Transition-metal-doped II-VI semiconductor materials enable high power lasers in the mid-infrared range and combine superb ultra-fast laser capabilities with high nonlinearity and polycrystalline microstructures that provide random quasi-phase matching. A femtosecond polycrystalline Cr:ZnS and Cr:ZnSe laser with a flexible design was developed by the authors; this figure shows the microstructure of polycrystalline Cr:ZnS, which is optimized for high SFH output. See Vasilyev et al. Opt. Mater. Express 7, 2636-2650 (2017).

1. Tunability of indium tin oxide materials for mid-infrared plasmonics applications
2. Titanium nitride as a plasmonic material for visible and near-infrared wavelengths
3. Material platforms for integrated quantum photonics
4. Refractive index measurements of photo-resists for three-dimensional direct laser writing
5. High performance infrared photodetectors up to 2.8 µm wavelength based on lead selenide colloidal quantum dots