3D printed multilayer structures for highnumerical aperture achromatic lenses Phys.org
News Source : Phys.Org
News Summary
- The research team demonstrated the broadband imaging performance of the engineered structures under white light and red, green, and blue narrowband illuminations.The outcomes highlighted the capacity of the 3D-printed multilayer structures to realize broadband and multifunctional meta devices..
- For instance, achromatic lenses show broadband responses to capture color information, to expand the design possibilities and application scenarios for photonic devices.Such constructs are ultra-compact, ultra-thin, light-weight, and well-suited to make compelling metalenses for imaging systems..
- Using two-photon polymerization, the scientists realized a variety of 3D designs, including complex microlenses, gradient index lenses, and diffractive lenses.In this work, Pan and colleagues used topology optimization to achieve achromatic lensing behavior..
- The outcomes are now published on Science Advances and are featured on the cover page of the journal.Recent progress in metalenses at the micro- and macro-scale have shown significance to achieve remarkable imaging performance suited for a variety of applications across light-field imaging, bioanalysis, medicine, and quantum technologies..
- The 3D printing methodThe research team lifted the fabrication challenges underlying multilayer achromatic metalenses by using three-dimensional printing..
- The nanoscale 3D printing method allowed the patterning of a multilayer lens in one lithographic step to rapidly prototype complex structures..
Achromatic performance of different single lenses and multilayer lenses. (A) Schematic of the designer 3Dprinted multilayer achromatic metalens (MAM). (B) Schematic of traditional and flat optics le [+8157 chars]