Company Filing History:
Years Active: 1999-2004
Title: Innovations of Lalqudi V Natarajan
Introduction
Lalqudi V Natarajan is a notable inventor based in Beavercreek, OH (US). He has made significant contributions to the field of photopolymerizable materials and devices, holding two patents that showcase his innovative spirit.
Latest Patents
One of his latest patents is focused on switchable volume hologram materials and devices. This invention introduces a new photopolymerizable material that allows for single-step, fast recording of volume holograms with properties that can be electrically controlled. The polymer-dispersed liquid crystals (PDLCs) used in this invention consist of a homogeneous mixture of a nematic liquid crystal and a multifunctional pentaacrylate monomer, along with a photoinitiator, coinitiator, and cross-linking agent. The PDLC material is exposed to coherent light to create an interference pattern, leading to the photopolymerization of the new PDLC material. This process results in a hologram with clearly separated liquid crystal domains and cured polymer domains. The volume transmission gratings produced can be electrically switched between nearly 100% and nearly 0% diffraction efficiency. By increasing the frequency of the switching voltage, switching voltages in the range of 50 Vrms can be achieved. The optional use of surfactants allows for lower switching voltages at lower frequencies. Additionally, this PDLC material can be utilized to form reflection gratings, including switchable reflection gratings and switchable subwavelength gratings.
Career Highlights
Lalqudi V Natarajan is currently employed at Science Applications International Corporation, where he continues to innovate and develop new technologies. His work has significantly impacted the field of optical materials and devices.
Collaborations
He has collaborated with notable coworkers such as Richard L Sutherland and Vince P Tondiglia, contributing to advancements in their respective fields.
Conclusion
Lalqudi V Natarajan's contributions to the field of photopolymerizable materials and devices highlight his innovative capabilities as an inventor. His patents reflect a commitment to advancing technology and improving the efficiency of optical materials.