Publications (26)
> 2Ï Phase Modulation using Exciton-Polaritons in a Two-Dimensional Superlattice
Jason Lynch, Pawan Kumar, Chen Chen +7
Active metamaterials promise to enable arbitrary, temporal control over the propagation of wavefronts of light for applications such as beam steering, optical communication modulat…
Giant Optical Anisotropy in 2D Metal-Organic Chalcogenates
Bongjun Choi, Kiyoung Jo, Mahfujur Rahaman +6
Optical anisotropy is a fundamental attribute of some crystalline materials and is quantified via birefringence. A birefringent crystal not only gives rise to asymmetrical light pr…
High-Temperature-Resilient Hyperbolicity in a Mixed-Dimensional Superlattice
Jason Lynch, Tzu-Yu Peng, Jing-Wei Yang +7
Hyperbolic superlattices are used for sub-wavelength focusing, cloaking, and optical thermal management. Typically, these superlattices are constructed of layers of noble metals an…
Direct Nano-Imaging of Light-Matter Interactions in Nanoscale Excitonic Emitters
Kiyoung Jo, Emanuele Marino, Jason Lynch +8
Strong light-matter interactions in localized nano-emitters when placed near metallic mirrors have been widely reported via spectroscopic studies in the optical far-field. Here, we…
Charge and Energy Transfer Dynamics of Hybridized Exciton-Polaritons in 2D Halide Perovskites
Surendra B. Anantharaman, Jason Lynch, Christopher E. Stevens +14
Excitons, bound electron-hole pairs, in Two-Dimensional Hybrid Organic Inorganic Perovskites (2D HOIPs) are capable of forming hybrid light-matter states known as exciton-polariton…
How Good Can 2D Excitonic Solar Cells Be?
Zekun Hu, Da Lin, Jason Lynch +2
Excitonic semiconductors have been a subject of research for photovoltaic applications for many decades. Among them, the organic polymers and small molecules based solar cells have…
Gate-Tunable Optical Anisotropy in Wafer-Scale, Aligned Carbon-Nanotube Films
Jason Lynch, Evan Smith, Adam Alfieri +10
Telecommunications and polarimetry both require the active control of the polarization of light, Currently, this is done by combining intrinsically anisotropic materials with tunab…
Broadband Light Harvesting from Scalable Two-Dimensional Semiconductor Heterostructures
Da Lin, Jason Lynch, Sudong Wang +9
Broadband absorption in the visible spectrum is essential in optoelectronic applications that involve power conversion such as photovoltaics and photocatalysis. Most ultrathin broa…
Experimental demonstration of corrugated nanolaminate films as reflective light sails
Matthew F. Campbell, Pawan Kumar, Jason Lynch +11
Achieving laser-driven, reflective, relativistic light sails would represent a tremendous breakthrough for humankind, allowing us to advance our understanding of the solar system a…
Controlled non-volatile modulation of optical dispersion in monolayer tungsten disulfide via ferroelectric polarization patterning
Yuhong Cao, Zekun Hu, Jason Lynch +7
The manipulation of optical properties, including reflection, refraction, polarization, phase, and frequency, has long been central to advancing photonic and optoelectronic technol…
Light-Matter Coupling in Scalable Van der Waals Superlattices
Pawan Kumar, Jason Lynch, Baokun Song +19
Two-dimensional (2D) crystals have renewed opportunities in design and assembly of artificial lattices without the constraints of epitaxy. However, the lack of thickness control in…
Cavity-Enhanced Raman Scattering from 2D Hybrid Perovskites
Aditya Singh, Jason Lynch, Surendra B. Anantharaman +6
Two-dimensional (2D) hybrid organic-inorganic perovskites (HOIPs) are promising candidates for optoelectronic applications due to their efficient light emission properties, and str…
Natural Hyperbolicity of Hexagonal Boron Nitride in the Deep Ultraviolet
Bongjun Choi, Jason Lynch, Wangleong Chen +6
Hyperbolic media enable unique optical phenomena including hyperlensing, negative refraction, enhanced photonic density of states (PDOS), and highly confined polaritons. While most…
Ultrastrong Light-Matter Coupling in 2D Metal-Chalcogenates
Surendra B. Anantharaman, Jason Lynch, Mariya Aleksich +10
Hybridization of excitons with photons to form hybrid quasiparticles, exciton-polaritons (EPs), has been widely investigated in a range of semiconductor material systems coupled to…
Photonics in Flatland: Challenges and Opportunities for Nanophotonics with 2D Semiconductors
Ali Azimi, Julien Barrier, Angela Barreda +45
Two-dimensional (2D) semiconductors are emerging as a versatile platform for nanophotonics, offering unprecedented tunability in optical properties through exciton resonance engine…
Reconfigurable, non-volatile control of optical anisotropy in ReS2 via ferroelectric gating
Mahfujur Rahaman, Seunguk Song, Aaliyah C. Khan +8
Electrically tunable linear dichroism (LD) with non-volatile properties represents a critical yet elusive feature for next-generation integrated photonic elements in practical devi…
Tandem Photovoltaics from 2D Transition Metal Dichalcogenides on Silicon
Zekun Hu, Sudong Wang, Jason Lynch +1
The demand for high-efficiency photovoltaic systems necessitates innovations that transcend the efficiency limitations of single-junction solar cells. This study investigates a tan…
Ultrathin Broadband Metasurface Superabsorbers from a van der Waals Semimetal
Adam D. Alfieri, Michael J. Motala, Michael Snure +8
Metamaterials and metasurfaces operating in the visible and near-infrared (NIR) offer a promising route towards next-generation photodetectors and devices for solar energy harvesti…
Self-Hybridized Polaritonic Emission from Layered Perovskites
Surendra B. Anantharaman, Christopher E. Stevens, Jason Lynch +9
Light-matter coupling in excitonic materials has been the subject of intense investigation due to emergence of new excitonic materials. Two-dimensional layered hybrid organic/inorg…
Understanding Optical Anisotropy in Multilayer γ-InSe and ε-GaSe
Jason Lynch, Zexuan Liu, Sergiy Krylyuk +3
Low-dimensional media have exhibited optical anisotropy that is unachievable in traditional 3D media due to the asymmetry of their strong, in-plane covalent bonds and weak out-of-p…
Wafer-scale growth of two-dimensional, phase-pure InSe
Seunguk Song, Sungho Jeon, Mahfujur Rahaman +12
Two-dimensional (2D) indium monoselenide (InSe) has attracted significant attention as a III-VI two-dimensional semiconductor (2D) with a combination of favorable attributes from I…
Tutorial: Exciton resonances for atomically-thin optics
Jason Lynch, Ludovica Guarneri, Deep Jariwala +1
Metasurfaces enable flat optical elements by leveraging optical resonances in metallic or dielectric nanoparticles to obtain accurate control over the amplitude and phase of the sc…
Scalable synthesis of 2D van der Waals superlattices
Michael J. Motala, Xiang Zhang, Pawan Kumar +23
Heterostructure materials form the basis of much of modern electronics, from transistors to lasers and light-emitting diodes. Recent years have seen a renewed focus on creating het…
Ultra-compact plexcitonic electro-absorption modulator
Ruoyu Yuan, Jason Lynch, Deep Jariwala
Compact electro-optic (EO) modulators with large extinction ratios, low-switching energies, and high operation speeds are desirable for integrated photonic and linear optical compu…
Electrically Tunable Excitonic-Hyperbolicity in Chirality-Pure Carbon Nanotubes
Jason Lynch, Pavel Shapturenka, Mohammad Mojtaba Sadafi +8
Metamaterials exhibiting hyperbolic dispersion enable unprecedented control over light-matter interactions, from sub-diffraction imaging to enhanced spontaneous emission. However,…
Effects of Self-Hybridized Exciton-Polaritons on WS2 Photovoltaics
Adam D. Alfieri, Tobia Ruth, Cheryl Lim +2
Excitonic semiconductors such as transition metal dichalcogenides (TMDCs) are attractive for next-generation photovoltaics (PVs) with low cost, light weight, and low material consu…