(DURIP) LOW-TEMPERATURE, HIGH MAGNETIC FIELD PHOTONIC MEASUREMENT SYSTEM FOR MAGNETO-PHOTONICS RESEARCH
Abstract
This project seeks to acquire a photonic measurement system for fiber optic coupling compatible with both low temperatures and high magnetic fields in order to catalyze the study of magnetic materials interactive with engineered light fields. Photonic circuits provide exceptional control of the properties of photons, including the ability to use periodicity and confinement to enhance the interaction of light and matter. At the same time, the emergence of nanoscale and layered materials with nontrivial electronic, spin, and magnetic properties creates new opportunities for using these features to manipulate light for new many-body phenomena or quantum and optical information applications. Combining these regimes in a single integrated magneto-photonic system is a promising vision for harnessing both the inherent nonlinearities of nanoscale matter and benefits of optical systems like coherence and topological protection, but this approach is severely underexplored because of the environmental requirements of cryogenic temperatures and high magnetic field for integrated photonics with these materials. The goal of this project is to overcome these challenges by designing and constructing a system for coupling light to integrated photonic circuits in a high-magnetic field cryogenic environment. The Photonic Measurement System will facilitate fast, repeatable, and efficient coupling of two optical fibers from external inputs or outputs into planar waveguides on a photonic integrated circuit. This will be achieved with a multiaxis sample stage combined with fiber coupling nanopositioners integrated with an optical confocal microscopy apparatus. The design leverages features of new cryogenic instrumentation to allow applications of large magnetic fields to nanoscale materials integrated with photonics. This combination will provide unprecedented flexibility for exploring hybrid magneto-photonic systems, catalyzing a long-term experimental program in cavity spectroscopy of spin-based phenomena in hybrid photonics with integrated nanomaterials. The Photonic Measurement System will advance study of hybrid light-matter systems, non-trivial topological structures, and spin-based phenomena in photonics, in particular with magnetic control, representing a long-term investment in emerging research directions that will impact DoD scientific interests.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 20, 2023
- Source ID
- FA95502210512
Entities
People
- Nathaniel Stern
Organizations
- Air Force Office of Scientific Research
- Northwestern University
- United States Air Force