1 citations · 1 across the 8 of their papers we have counts for
10 papers
Microwave Power-to-Frequency Transduction in a Magnetically Initiated Rydberg Dissipative Time Crystal
Darmindra Arumugam
Microwave power-to-frequency transduction is demonstrated using the emergent oscillation frequency of a magnetically initiated Rydberg dissipative time crystal (DTC). In a room-tem…
Giant Resonant Reflection Gain from Injection-Induced Quenching in a Tunnel Diode
Darmindra Arumugam, Jack Bush, Brook Feyissa
Negative-resistance microwave oscillators can simultaneously sustain autonomous oscillations and coherently scatter electromagnetic waves, enabling active reflection beyond convent…
Microwave Power-to-Frequency Transduction via Injection Pulling of a Self-Sustained Oscillator for Rydberg Superheterodyne Sensing
Darmindra Arumugam
A Rydberg superheterodyne sensing architecture is demonstrated in which a self-sustained oscillator (SSO) serves as a dynamically perturbed local oscillator (LO) for microwave dete…
Rydberg-State Hopping in a Wavemeter-Locked Dissipative Time-Crystal System
Darmindra Arumugam
Rydberg-state hopping is demonstrated in a wavemeter-locked two-photon rubidium system (Rb D2 probe at 780 nm and 480 nm coupler), enabling rapid and repeatable switching between t…
Stabilization of Rydberg Dissipative Time Crystals Using a Scanning Fabry Perot Interferometer Transfer Lock
Darmindra Arumugam, Brook Feyissa
Stabilization of laser frequencies is critical for sensitive Rydberg measurements, including in applications such as dissipative time crystal (DTC) dynamics, yet conventional appro…
Polarization-Aware DoA Detection Relying on a Single Rydberg Atomic Receiver
Yuanbin Chen, Chau Yuen, Darmindra Arumugam +3
A polarization-aware direction-of-arrival (DoA) detection scheme is conceived that leverages the intrinsic vector sensitivity of a single Rydberg atomic vapor cell to achieve quant…
Injection locking of Rydberg dissipative time crystals
Darmindra Arumugam
Non-equilibrium Rydberg gases exhibit exotic many-body phases stabilized by the interplay of coherent interactions and dissipation. Strong Rydberg interactions drive sustained limi…
Stark-modulated Rydberg dissipative time crystals at room-temperature applied to sub-kHz electric-field sensing
Darmindra Arumugam
Out-of-equilibrium Rydberg gases exhibit emergent many-body phases due to mode competition. Sustained limit cycle oscillations (OSC) emerge when driven by B-fields at room-temperat…
Electric-field sensing with driven-dissipative time crystals in room-temperature Rydberg vapor
Darmindra Arumugam
Mode competition in nonequilibrium Rydberg gases enables the exploration of emergent many-body phases. This work leverages this emergent phase for electric field detection at room…
Remote sensing of soil moisture using Rydberg atoms and satellite signals of opportunity
Darmindra Arumugam, Jun-Hee Park, Brook Feyissa +2
Spaceborne radar remote sensing of the earth system is essential to study natural and man-made changes in the ecosystem, water and energy cycles, weather and air quality, sea level…