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Review
Materials Science, Multidisciplinary
L. O. U. I. S. MARTIN-MONIER et al.
Summary: Chalcogenide phase change materials (PCMs) are compounds with switchable optical and electronic properties, which have driven the emergence of new applications in electronics and photonics. However, current PCM-based photonic devices have limited endurance. This review discusses the parameters that affect crystallization and re-amorphization of PCMs, as well as the design rules for enhancing cycling durability of these compounds.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Nanoscience & Nanotechnology
Rui Chen et al.
Summary: Programmable photonic integrated circuits (PICs) have recently gained significant interest due to their potential in next-generation technologies. The fundamental building block is a 2 x 2 programmable unit, traditionally controlled by thermal or free-carrier dispersion. However, these implementations are power-hungry and volatile, making a set-and-forget-type unit with zero static power consumption highly desirable. This report presents a nonvolatile electrically controlled 2 x 2 programmable unit in silicon photonics, which exhibits compact size, low insertion loss, and minimal crosstalk.
Article
Nanoscience & Nanotechnology
Zhuoran Fang et al.
Summary: Researchers have demonstrated a non-volatile electrically reconfigurable silicon photonic platform that utilizes a monolayer graphene heater for high energy efficiency. The graphene-assisted photonic switches showed endurance of over 1,000 cycles and at least a 20-fold reduction in switching energy compared with the state of the art. This study shows that graphene is a reliable and energy-efficient heater compatible with dielectric platforms for technologically relevant non-volatile programmable silicon photonics.
NATURE NANOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Parikshit Moitra et al.
Summary: All-dielectric metasurfaces provide complete control of light's amplitude and phase at sub-wavelength scales, but their lack of tunability after fabrication is a limitation. This study demonstrates a programmable all-dielectric metasurface made of Sb2S3 PCM, which shows high efficiency phase modulation and reversible optical modulation in the visible spectrum. These novel chalcogenide PCM metasurfaces have the potential to be used in spatial light modulators and impact various applications.
ADVANCED MATERIALS
(2022)
Article
Optics
Carlos Rios et al.
Summary: Optical phase shifters are fundamental building blocks for programmable photonic integrated circuits (PICs), but the existing phase shifters are volatile and require constant power supply, limiting their use in certain applications. To overcome this limitation, researchers have introduced a new phase shifting mechanism using a transparent phase change material, which enables zero-static power and electrically-driven phase shifting. This approach improves phase modulation and insertion loss performance, and also allows for additional functionalities such as extinction ratio trimming and speed enhancement.
Article
Multidisciplinary Sciences
J. M. Arrazola et al.
Summary: The newly introduced photon quantum computing system is capable of executing multiple quantum algorithms, surpassing the limitations of existing photon quantum computers, with significant breakthroughs in detecting the quantity and rate of multi-photon events. The platform validates the application prospects of photon technologies in quantum information processing, particularly in the breakthroughs brought by high squeezing and sampling rates.
Article
Materials Science, Multidisciplinary
Zhuoran Fang et al.
Summary: This study experimentally demonstrated the strong optical phase modulation and low optical loss of Sb2S3 at wavelengths of 750 nm and 1550 nm, showcasing the thermal stability of the Sb2S3-Si hybrid platform and an electrically tunable Sb2S3 integrated non-volatile microring switch with a high-contrast transmission state over 30 dB.
ADVANCED OPTICAL MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Yifei Zhang et al.
Summary: Utilizing Ge2Sb2Se4Te phase-change material, an electrically reconfigurable optical metasurface with half an octave spectral tuning range and over 400% optical contrast has been achieved. Additionally, a polarization-insensitive phase-gradient metasurface has been prototyped for dynamic optical beam steering applications.
NATURE NANOTECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Matthew Delaney et al.
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Jiajiu Zheng et al.
ADVANCED MATERIALS
(2020)
Review
Nanoscience & Nanotechnology
Sajjad Abdollahramezani et al.
Article
Multidisciplinary Sciences
Yifei Zhang et al.
NATURE COMMUNICATIONS
(2019)
Article
Chemistry, Multidisciplinary
Weiling Dong et al.
ADVANCED FUNCTIONAL MATERIALS
(2019)
Article
Optics
Xuan Li et al.
Review
Optics
Qixiang Cheng et al.
Review
Optics
M. Wuttig et al.
Article
Nanoscience & Nanotechnology
Tomas Tuma et al.
NATURE NANOTECHNOLOGY
(2016)
Article
Optics
Carlos Rios et al.
Review
Engineering, Electrical & Electronic
Geoffrey W. Burr et al.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2010)
