Optical phase change materials in integrated silicon photonic devices (Conference Presentation)

2019 ◽  
Author(s):  
Sharon M. Weiss ◽  
Richard F. Haglund
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Photonic Devices ◽  
Optical Phase ◽  
Silicon Photonic

scholarly journals Optical phase change materials in integrated silicon photonic devices: review

2018 ◽  
Vol 8 (8) ◽  
pp. 2415 ◽  
Author(s):  
Kevin J. Miller ◽  
Richard F. Haglund ◽  
Sharon M. Weiss
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Photonic Devices ◽  
Optical Phase ◽  
Silicon Photonic

scholarly journals Broadband transparent optical phase change materials for high-performance nonvolatile photonics

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Yifei Zhang ◽  
Jeffrey B. Chou ◽  
Junying Li ◽  
Huashan Li ◽  
Qingyang Du ◽  
...  
Keyword(s):  
Phase Change ◽  
High Performance ◽  
Phase Change Materials ◽  
Contrast Ratio ◽  
Optical Loss ◽  
Photonic Devices ◽  
Light Modulator ◽  
Optical Phase ◽  
New Class ◽  
Integrated Optical

Abstract Optical phase change materials (O-PCMs), a unique group of materials featuring exceptional optical property contrast upon a solid-state phase transition, have found widespread adoption in photonic applications such as switches, routers and reconfigurable meta-optics. Current O-PCMs, such as Ge–Sb–Te (GST), exhibit large contrast of both refractive index (Δn) and optical loss (Δk), simultaneously. The coupling of both optical properties fundamentally limits the performance of many applications. Here we introduce a new class of O-PCMs based on Ge–Sb–Se–Te (GSST) which breaks this traditional coupling. The optimized alloy, Ge2Sb2Se4Te1, combines broadband transparency (1–18.5 μm), large optical contrast (Δn = 2.0), and significantly improved glass forming ability, enabling an entirely new range of infrared and thermal photonic devices. We further demonstrate nonvolatile integrated optical switches with record low loss and large contrast ratio and an electrically-addressed spatial light modulator pixel, thereby validating its promise as a material for scalable nonvolatile photonics.

scholarly journals Phase Change Metasurfaces by Continuous or Quasi-Continuous Atoms for Active Optoelectronic Integration

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1272
Author(s):  
Zhihua Fan ◽  
Qinling Deng ◽  
Xiaoyu Ma ◽  
Shaolin Zhou
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Complementary Metal Oxide Semiconductor ◽  
Photonic Devices ◽  
Oxide Semiconductor ◽  
Cmos Process ◽  
Nanophotonic Devices ◽  
Optoelectronic Integration ◽  
Hybrid Devices ◽  
Micro Electromechanical System

In recent decades, metasurfaces have emerged as an exotic and appealing group of nanophotonic devices for versatile wave regulation with deep subwavelength thickness facilitating compact integration. However, the ability to dynamically control the wave–matter interaction with external stimulus is highly desirable especially in such scenarios as integrated photonics and optoelectronics, since their performance in amplitude and phase control settle down once manufactured. Currently, available routes to construct active photonic devices include micro-electromechanical system (MEMS), semiconductors, liquid crystal, and phase change materials (PCMs)-integrated hybrid devices, etc. For the sake of compact integration and good compatibility with the mainstream complementary metal oxide semiconductor (CMOS) process for nanofabrication and device integration, the PCMs-based scheme stands out as a viable and promising candidate. Therefore, this review focuses on recent progresses on phase change metasurfaces with dynamic wave control (amplitude and phase or wavefront), and especially outlines those with continuous or quasi-continuous atoms in favor of optoelectronic integration.

Transient Tap Couplers for Wafer-Level Photonic Testing Based on Optical Phase Change Materials

ACS Photonics ◽  
2021 ◽  
Author(s):  
Yifei Zhang ◽  
Qihang Zhang ◽  
Carlos Ríos ◽  
Mikhail Y. Shalaginov ◽  
Jeffrey B. Chou ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Wafer Level ◽  
Optical Phase

scholarly journals Myths and truths about optical phase change materials: A perspective

2021 ◽  
Vol 118 (21) ◽  
pp. 210501
Author(s):  
Yifei Zhang ◽  
Carlos Ríos ◽  
Mikhail Y. Shalaginov ◽  
Mo Li ◽  
Arka Majumdar ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Optical Phase

scholarly journals Photonic Devices: Plasmonic Metasurfaces for Switchable Photonic Spin-Orbit Interactions Based on Phase Change Materials (Adv. Sci. 10/2018)

2018 ◽  
Vol 5 (10) ◽  
pp. 1870063
Author(s):  
Ming Zhang ◽  
Mingbo Pu ◽  
Fei Zhang ◽  
Yinghui Guo ◽  
Qiong He ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Photonic Devices ◽  
Spin Orbit ◽  
Spin Orbit Interactions

Broadband low-loss optical phase change materials and devices (Conference Presentation)

2018 ◽  
Author(s):  
Yifei Zhang ◽  
Jeffery Chou ◽  
Junying Li ◽  
Qingyang Du ◽  
Qihang Zhang ◽  
...  
Keyword(s):  
Phase Change ◽  
Phase Change Materials ◽  
Low Loss ◽  
Optical Phase
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