166 citations · 617 across the 20 of their papers we have counts for
18 papers · 1 filter
Zero-change foundry compatible silicon photonics MEMS optical switch
Arkadev Roy, Daniel Klawson, Jianheng Luo +3
Large-scale photonic switches are emerging as essential devices for energy-efficient optical interconnect in data centers and AI/ML clusters as a key enabler for high-bandwidth and…
Ultrafast neuromorphic computing with nanophotonic optical parametric oscillators
Midya Parto, Gordon H. Y. Li, Ryoto Sekine +5
Over the past decade, artificial intelligence (AI) has led to disruptive advancements in fundamental sciences and everyday technologies. Among various machine learning algorithms,…
Large-scale time-multiplexed nanophotonic parametric oscillators
Robert M. Gray, Ryoto Sekine, Luis Ledezma +5
Arrays of nonlinear resonators offer a fertile ground for a wide range of complex phenomena and opportunities for advanced photonic sensing and computing. Recently, significant att…
Optical-parametric-amplification-enhanced background-free spectroscopy
Mingchen Liu, Robert M. Gray, Arkadev Roy +2
Traditional absorption spectroscopy has fundamental difficulty in resolving small absorbance from strong background due to the instability of laser sources. Existing background-fre…
Mode-locked laser in nanophotonic lithium niobate
Qiushi Guo, Ryoto Sekine, James A. Williams +8
Mode-locked lasers (MLLs) have enabled ultrafast sciences and technologies by generating ultrashort pulses with peak powers substantially exceeding their average powers. Recently,…
Quadratic-soliton-enhanced mid-IR molecular sensing
Robert M. Gray, Mingchen Liu, Selina Zhou +3
Optical solitons have long been of interest both from a fundamental perspective and because of their application potential. Both cubic (Kerr) and quadratic nonlinearities can lead…
Visible-to-mid-IR tunable frequency comb in nanophotonics
Arkadev Roy, Luis Ledezma, Luis Costa +6
Optical frequency comb is an enabling technology for a multitude of applications from metrology to ranging and communications. The tremendous progress in sources of optical frequen…
Non-equilibrium phase transitions in coupled nonlinear optical resonators
Arkadev Roy, Rajveer Nehra, Carsten Langrock +2
Phase transitions and the associated symmetry breaking are at the heart of many physical phenomena. Coupled systems with multiple interacting degrees of freedom provide a fertile g…
High-Power Mid-IR Few-Cycle Frequency Comb from Quadratic Solitons in an Optical Parametric Oscillator
Mingchen Liu, Robert M. Gray, Arkadev Roy +5
Powerful and efficient optical frequency combs in the mid-infrared (MIR) spectral region are highly desirable for a broad range of applications. Despite extensive efforts utilizing…
Octave-spanning tunable parametric oscillation in nanophotonics
Luis Ledezma, Arkadev Roy, Luis Costa +6
Widely-tunable coherent sources are desirable in nanophotonics for a multitude of applications ranging from communications to sensing. The mid-infrared spectral region (wavelengths…
Temporal Walk-off Induced Dissipative Quadratic Solitons
Arkadev Roy, Rajveer Nehra, Saman Jahani +4
A plethora of applications have recently motivated extensive efforts on the generation of low noise Kerr solitons and coherent frequency combs in various platforms ranging from fib…
Topological Optical Parametric Oscillation
Arkadev Roy, Midya Parto, Rajveer Nehra +2
Topological insulators possess protected boundary states which are robust against disorders and have immense implications in both fermionic and bosonic systems. Harnessing these to…
Femtojoule, femtosecond all-optical switching in lithium niobate nanophotonics
Qiushi Guo, Ryoto Sekine, Luis Ledezma +6
Optical nonlinear functions are crucial for various applications in integrated photonics, such as all-optical information processing, photonic neural networks and on-chip ultrafast…
Mid-Infrared Cross-Comb Spectroscopy
Mingchen Liu, Robert M. Gray, Luis Costa +3
Dual-comb spectroscopy has been proven a powerful tool in molecular characterization, which remains challenging to implement in the mid-infrared region due to difficulties in the r…
Confining light in all-dielectric anisotropic metamaterial particles for nano-scale nonlinear optics
Saman Jahani, Joong Hwan Bahng, Arkadev Roy +2
High-index dielectrics can confine light into nano-scale leading to enhanced nonlinear response. However, increased momentum in these media can deteriorate the overlap between diff…
Spectral Phase Transitions in Optical Parametric Oscillators
Arkadev Roy, Saman Jahani, Carsten Langrock +2
Spectral behaviors of photonic resonators have been the basis for a range of fundamental studies, with applications in classical and quantum technologies. Driven nonlinear resonato…
Wavelength-scale Optical Parametric Oscillators
Saman Jahani, Arkadev Roy, Alireza Marandi
Despite recent progress in nonlinear optics in wavelength-scale resonators, there are still open questions on the possibility of parametric oscillation in such resonators. We prese…
Generalized Mathematical Formalism Governing Free-carrier Driven Kerr Frequency Comb in Optical Micro-cavities
Raktim Haldar, Arkadev Roy, Partha Mondal +2
Continuous-wave pumped optical microresonators have been vastly exploited to generate frequency comb (FC) utilizing the Kerr nonlinearity. Most of the nonlinear materials used to b…