Multi-plane, multi-band image projection via broadband diffractive optics
Abstract
We demonstrate visible and near-IR image projection via non-absorbing, multi-level broadband diffractive-optical elements (BDOEs) in one or more planes. By appropriate design of the BDOE topography, we experimentally demonstrate (1) different images in different spectral bands, (2) different images in different image planes, (3) image magnification by changing the distance between the illumination source and the BDOE, (4) completely flat BDOE via an index-contrast top coating, and (5) reflective BDOEs. All of these are accomplished with broadband illumination. Furthermore, the BDOEs are highly efficient and versatile and can be inexpensively mass manufactured using imprint-based replication techniques.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Dec 23, 2019
- Source ID
- 10.1364/ao.59.000038
Entities
People
- Apratim Majumder
- Monjurul Meem
- Rajesh Menon
Organizations
- Office of Naval Research