Nolan Lassaline
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View article: Gradient Electronic Landscapes in van der Waals Heterostructures
Gradient Electronic Landscapes in van der Waals Heterostructures Open
Two-dimensional (2D) materials, such as graphene and hexagonal boron nitride (hBN), provide a versatile platform for quantum electronics. Experiments generally require encapsulation of graphene within hBN flakes, forming a protective van d…
View article: High‐Throughput Optical Identification and Statistical Analysis of Atomically Thin Semiconductors
High‐Throughput Optical Identification and Statistical Analysis of Atomically Thin Semiconductors Open
Transition metal dichalcogenides (TMDs) are layered two‐dimensional semiconductors explored for optoelectronic applications, ranging from light‐emitting diodes to single‐photon emitters. Such devices require monolayer TMDs, typically obtai…
View article: Diffraction of Light from Optical Fourier Surfaces
Diffraction of Light from Optical Fourier Surfaces Open
Diffractive surfaces shape optical wavefronts for applications in spectroscopy, high-speed communication, and imaging. The performance of these structures is primarily determined by how precisely they can be patterned. Fabrication constrai…
View article: High-Throughput Identification and Statistical Analysis of Atomically Thin Semiconductors
High-Throughput Identification and Statistical Analysis of Atomically Thin Semiconductors Open
Transition metal dichalcogenides (TMDs) are layered two-dimensional semiconductors explored for various optoelectronic applications, ranging from light-emitting diodes to single-photon emitters. To interact strongly with light, such device…
View article: Generating smooth potential landscapes with thermal scanning-probe lithography
Generating smooth potential landscapes with thermal scanning-probe lithography Open
Scanning probe microscopy (SPM) uses a sharp tip to interrogate surfaces with atomic precision. Inputs such as mechanical, electrical, or thermal energy can activate highly localized interactions, providing a powerful class of instruments …
View article: Metasurface Colloidal Quantum Dot Photodetectors
Metasurface Colloidal Quantum Dot Photodetectors Open
Efficient photodetectors that can be easily engineered for a specific spectral window are of high interest. Here, we report on the design, fabrication, and characterization of metasurface-enhanced photodetectors and photodiodes using collo…
View article: Fourier surface grating couplers for integrated photonics
Fourier surface grating couplers for integrated photonics Open
We incorporate Fourier surfaces into silicon waveguides with vertical tapers for next-generation photonic grating couplers. By combining thermal scanning-probe lithography and reactive-ion etching, we generate gratings with smoothly apodiz…
View article: Freeform nanostructuring of hexagonal boron nitride
Freeform nanostructuring of hexagonal boron nitride Open
Hexagonal boron nitride (hBN)-long-known as a thermally stable ceramic-is now available as atomically smooth, single-crystalline flakes, revolutionizing its use in optoelectronics. For nanophotonics, these flakes offer strong nonlinearitie…
View article: Compact Plasmonic Distributed-Feedback Lasers as Dark Sources of Surface Plasmon Polaritons
Compact Plasmonic Distributed-Feedback Lasers as Dark Sources of Surface Plasmon Polaritons Open
Plasmonic modes in optical cavities can be amplified through stimulated emission. Using this effect, plasmonic lasers can potentially provide chip-integrated sources of coherent surface plasmon polaritons (SPPs). However, while plasmonic l…
View article: The Potential of Combining Thermal Scanning Probes and Phase‐Change Materials for Tunable Metasurfaces
The Potential of Combining Thermal Scanning Probes and Phase‐Change Materials for Tunable Metasurfaces Open
Metasurfaces allow for the spatiotemporal variation of amplitude, phase, and polarization of optical wavefronts. Implementation of active tunability of metasurfaces promises compact flat optics capable of reconfigurable wavefront shaping. …
View article: Optical Properties of Amorphous and Crystalline GeTe Nanoparticle Thin Films: A Phase-Change Material for Tunable Photonics
Optical Properties of Amorphous and Crystalline GeTe Nanoparticle Thin Films: A Phase-Change Material for Tunable Photonics Open
Phase-change materials (PCMs), which are well-established in optical and\nrandom-access memories, are increasingly studied for emerging topics such as\nbrain-inspired computing and active photonics. These applications take\nadvantage of th…
View article: Spectrally-resolved dielectric function of amorphous and crystalline GeTe nanoparticle thin films
Spectrally-resolved dielectric function of amorphous and crystalline GeTe nanoparticle thin films Open
Phase-change materials (PCMs), which are well-established in optical and random-access memories, are increasingly studied for emerging topics such as brain-inspired computing and active photonics. These applications take advantage of the p…
View article: Fast turnaround fabrication of silicon point-contact quantum-dot transistors using combined thermal scanning probe lithography and laser writing
Fast turnaround fabrication of silicon point-contact quantum-dot transistors using combined thermal scanning probe lithography and laser writing Open
The fabrication of high-performance solid-state silicon quantum-devices requires high resolution patterning with minimal substrate damage. We have fabricated room temperature (RT) single-electron transistors (SETs) based on point-contact t…
View article: Plasmonic Photodetectors
Plasmonic Photodetectors Open
Plasmonic photodetectors are attracting the attention of the photonics community. Plasmonics is attractive because metallic structures have the ability to confine light by coupling an electromagnetic wave to charged carrier oscillations at…