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Digitally Programmable Photochromic Hydrogel Contact Lenses as Light-Adaptive Artificial Irises
Asad Nauman, Tristen Moncada, Guli Gulinihali +3
Excessive exposure to ultraviolet (UV) radiation is associated with a range of ocular pathologies, motivating the development of soft optical devices that can dynamically regulate…
Dispersion Control in Micromechanical Evanescent Optical Modulators
Karl Johnson, John Hong, Tallis Chang +8
Efficient, low-loss, and versatile optical modulators are a critical ingredient for practical integrated photonic systems. Modulators based on micro-electromechanical systems (MEMS…
Polarization-Sensitive Diffractive Optics and Metasurfaces: "Past is Prologue"
Noah A. Rubin, Yeshaiahu Fainman
Polarization control and switchability are among the most unique features of "metasurfaces" as compared with diffractive optics technologies of the past. Here, we review how the po…
Interferometric modal splitting enables a broadband, dual-polarization on-chip spectrometer
Karl Johnson, Vladimir Fedorov, Dmitrii Belogolovskii +3
The modal dispersion of waveguides often limits integrated photonic devices to operation with a single polarization state. This presents a challenge for sensing and spectroscopy ap…
Large Bidirectional Refractive Index Change in Silicon-rich Nitride via Visible Light Trimming
Dmitrii Belogolovskii, Md Masudur Rahman, Karl Johnson +6
Phase-sensitive integrated photonic devices are highly susceptible to minor manufacturing deviations, resulting in significant performance inconsistencies. This variability has lim…
Electrically Reconfigurable Non-Volatile On-Chip Bragg Filter with Multilevel Operation
Amged Alquliah, Jay Ke-Chieh Sun, Christopher Mekhiel +4
Photonic integrated circuits (PICs) demand tailored spectral responses for various applications. On-chip Bragg filters offer a promising solution, yet their static nature hampers s…
Information Processing in Hybrid Photonic Electrical Reservoir Computing
Prabhav Gaur, Chengkuan Gao, Karl Johnson +3
Physical Reservoir Computing (PRC) is a recently developed variant of Neuromorphic Computing, where a pertinent physical system effectively projects information encoded in the inpu…
A systematic evaluation of Silicon-rich Nitride Electro-optic Modulator design and tradeoffs
Alex Friedman, Dmitrii Belogolovskii, Andrew Grieco +1
We present a study of linearized \c{hi}^((3)) based electro-optic modulation beginning with an analysis of the nonlinear polarizability, and how to linearize a modulator based on t…
Multirate Spectral Domain Optical Coherence Tomography
Prabhav Gaur, Andrew Grieco, Yeshaiahu Fainman
Optical coherence tomography is state-of-the-art in non-invasive imaging of biological structures. Spectral Domain Optical Co-herence Tomography is the popularly used variation of…
Optofluidic memory and self-induced nonlinear optical phase change for reservoir computing in silicon photonics
Chengkuan Gao, Prabhav Gaur, Dhaifallah Almutairi +2
Implementing optical-based memory and utilizing it for computation on the nanoscale remains an attractive but still a challenging task. While significant progress was achieved in n…
Realization of a wide steering end-fire facet optical phased array using silicon rich silicon nitride
Hani Nejadriahi, Prabhav Gaur, Karl Johnson +3
The design, fabrication, and characterization of a 16-element optical phased array (OPA) using a high index (n = 3.1) silicon rich silicon nitride (SRN) is demonstrated. We present…
Thin liquid film as an optical nonlinear-nonlocal medium and memory element in integrated optofluidic reservoir computer
Chengkuan Gao, Prabhav Gaur, Shimon Rubin +1
Understanding light-matter interaction enables harnessing physical effects to translate into new capabilities realized in modern integrated photonics platforms. Here, we present th…
Demonstration of the DC-Kerr Effect in Silicon-Rich Nitride
Alex Friedman, Hani Nejadriahi, Rajat Sharma +1
We demonstrate the DC-Kerr effect in PECVD Silicon-rich Nitride (SRN) and use it to demonstrate a third order nonlinear susceptibility, \c{hi}^((3)), as high as (6 +/- 0.58)x10-19…
Effects of High- on Phase-locking Stability and Tunability in Laterally Coupled Lasers
Sizhu Jiang, Suruj S. Deka, Si Hui Pan +1
Phase-locked laser arrays have been extensively investigated in terms of their stability and nonlinear dynamics. Specifically, enhancing the phase-locking stability allows laser ar…
On-chip spectrometer using stratified waveguides filters
Ang Li, Yeshaiahu Fainman
We present an ultra-compact single-shot spectrometer on silicon platform with broad operation bandwidth and high resolution. It consists of 32 stratified waveguide filters (SWFs) w…
Nonlinear, Tunable and Active Optical Metasurface with Liquid Film
Shimon Rubin, Yeshaiahu Fainman
Optical metamaterials and metasurfaces which emerged in the course of the last few decades have revolutionized our understanding of light and light-matter interaction. While solid…
Subnanometer imaging and controlled dynamical patterning of thermocapillary driven deformation of thin liquid films
Shimon Rubin, Brandon Hong, Yeshaiahu Fainman
Exploring and controlling the physical factors that determine the topography of thin liquid dielectric films are of interest in manifold fields of research in physics, applied math…
Topological lasers generating and multiplexing topological light
B. Bahari, L. -Y. Hsu, S. H. Pan +5
Vortices are topologically stable singularities at the center of a swirl of energy. Optical vortices are conventionally formed using diffractive optics or by bespoke optical elemen…
On observation of dispersion in tunable second-order nonlinearities of silicon-rich nitride thin films
Hung-Hsi Lin, Rajat Sharma, Alex Friedman +5
We present experimental results on second-harmonic generation in non-stoichiometric, silicon-rich nitride (SRN) films. The as-deposited film presents a second-order nonlinear coeff…
Nonlocal and Nonlinear Surface Plasmon Polaritons and Optical Spatial Solitons induced by the Thermocapillary Effect
Shimon Rubin, Yeshaiahu Fainman
We study the propagation of surface plasmon polaritons (SPPs) on a metal surface which hosts a thin film of a liquid dielectric. The ohmic losses, that are inherently present due t…
Integrated and Steerable Vortex Lasers using Bound States in Continuum
B. Bahari, F. Vallini, T. Lepetit +5
Orbital angular momentum is a fundamental degree of freedom of light that manifests itself even at the single photon level. The coherent generation and beaming of structured light…
Electronic Metamaterials with Tunable Second-order Optical Nonlinearities
Hung-Hsi Lin, Felipe Vallini, Mu-Han Yang +6
The ability to engineer metamaterials with tunable nonlinear optical properties is crucial for nonlinear optics. Traditionally, metals have been employed to enhance nonlinear optic…
Dynamic Hysteresis Probes High-β Nanolaser Emission Regimes
Si Hui Pan, Qing Gu, Abdelkrim El Amili +2
The quest for an integrated light source that promises high energy efficiency and fast modulation for high-performance photonic circuits has led to the development of room-temperat…
Observation of second-harmonic generation in silicon nitride waveguides through bulk nonlinearities
Matthew W. Puckett, Rajat Sharma, Hung-Hsi Lin +3
We present experimental results on the observation of a bulk second-order nonlinear susceptibility derived from both free-space and integrated measurements in silicon nitride. Phas…