collaborators

5 papers

physics.optics2026

Frozen mode in coupled single-mode waveguides with gratings

Albert Herrero-Parareda, Nathaniel Furman, Bradley J. Thompson +3

We present a systematic methodology for designing slow-light photonic integrated circuits with a frozen mode based on a special kind of exceptional point of degeneracy (EPD) of ord…

physics.optics2025

Lasing at a Stationary Inflection Point: erratum

Albert Herrero-Parareda, Nathaniel Furman, Tarek Mealy +4

This erratum provides an updated fitting function for the lasing threshold of finite-length cavities operating at a stationary inflection point (SIP) or regular band edge (RBE) res…

physics.optics2025

Experimental Measurement of Enhanced Group Delay Silicon Photonic Waveguides Indicative of the Frozen Mode Regime Around the Stationary Inflection Point

Nathaniel Furman, Albert Herrero-Parareda, Anthony Rapp +6

The dispersion engineering of periodic silicon photonic waveguides presents opportunities for significant group delay enhancement compared to uniform waveguides of comparable lengt…

physics.optics2025

Advancements in Degenerate Distributed Feedback Lasing

Albert Herrero-Parareda, Nathaniel Furman, Filippo Capolino

We advance the concept of degenerate distributed feedback (DDFB) lasing in a double grating photonic structure that operates near a degenerate band edge (DBE) to achieve a robust s…

physics.app-ph2025

Array oscillator in coupled waveguides with nonlinear gain and radiation resistances saturating at exceptional point

Alireza Nikzamir, Albert Herrero-Parareda, Nathaniel Furman +3

A periodically loaded waveguide composed of periodic discrete nonlinear gain and radiating elements supports a stable oscillation regime related to the presence of an exceptional p…