Optical phase change materials in integrated silicon photonic devices

KJ Miller, RF Haglund Jr, SM Weiss - Optical Materials Express, 2018 - opg.optica.org
Optical phase change materials (O-PCMs) are being explored for a variety of photonic
applications due to the extraordinarily large changes in optical properties that occur during …

Sub‐Picosecond Response Time of a Hybrid VO2:Silicon Waveguide at 1550 nm

KA Hallman, KJ Miller, A Baydin… - Advanced Optical …, 2021 - Wiley Online Library
Hybrid material systems are a promising approach for extending the capabilities of silicon
photonics. Given the weak electro‐optic and thermo‐optic effects in silicon, there is intense …

[HTML][HTML] Temperature-responsive tungsten doped vanadium dioxide thin film starves bacteria to death

J Li, W Liu, X Zhang, PK Chu, KMC Cheung… - Materials Today, 2019 - Elsevier
The colonization of microorganisms on material surfaces, or namely biofouling, is a
challenging matter in both the medical and marine industries. With the inspiration of the …

Nanotextured Dynamics of a Light-Induced Phase Transition in VO2

AJ Sternbach, FL Ruta, Y Shi, T Slusar, J Schalch… - Nano …, 2021 - ACS Publications
We investigate transient nanotextured heterogeneity in vanadium dioxide (VO2) thin films
during a light-induced insulator-to-metal transition (IMT). Time-resolved scanning near-field …

Unified band-theoretic description of structural, electronic, and magnetic properties of vanadium dioxide phases

S Xu, X Shen, KA Hallman, RF Haglund Jr… - Physical Review B, 2017 - APS
The debate about whether the insulating phases of vanadium dioxide (VO 2) can be
described by band theory or whether it requires a theory of strong electron correlations …

Epitaxial VO2 Nanostructures: A Route to Large-Scale, Switchable Dielectric Metasurfaces

F Ligmajer, L Kejik, U Tiwari, M Qiu, J Nag… - ACS …, 2018 - ACS Publications
Metasurfaces offer unparalleled functionalities for controlling the propagation and properties
of electromagnetic waves. But to transfer these functions to technological applications, it is …

Broadband, Integrated, Micron-Scale, All-Optical Si3N4/VO2 Modulators with pJ Switching Energy

HMK Wong, Z Yan, KA Hallman, RE Marvel… - Acs …, 2019 - ACS Publications
The expansion of optical network traffic demands the implementation of all-optical signal
processing functions such as switching and modulation within the network nodes to scale …

Selection rule for the photoinduced phase transition dominated by anisotropy of strain in

T Saiki, T Yoshida, K Akimoto, D Indo, M Arizono… - Physical Review B, 2022 - APS
In photoinduced phase transitions, the relationship between the crystal orientation and the
direction of the polarization or wave vector of light seems important, but surprisingly, such …

Subpicosecond Spectroscopic Ellipsometry of the Photoinduced Phase Transition in VO2 Thin Films

Y Gutiérrez, S Vázquez-Miranda, S Espinoza… - ACS …, 2024 - ACS Publications
We report the first application of broadband time-resolved pump–probe ellipsometry to study
the ultrafast dynamics of the photoinduced insulator-to-metal transition (IMT) in vanadium …

Photoinduced Metal-Like Phase of VO2 with Subns Recovery

JK Clark, YL Ho, H Matsui, B Vilquin, H Tabata… - ACS …, 2020 - ACS Publications
Vanadium dioxide is a unique insulator–metal transition material with a near room
temperature transition temperature that is a major focus of interest in burgeoning fields such …