Silicon Nanomembrane For High Performance Conformal Photonic Devices PDF Download

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Silicon Nanomembrane for High Performance Conformal Photonic Devices

Silicon Nanomembrane for High Performance Conformal Photonic Devices
Author: Xiaochuan Xu
Publisher:
Total Pages: 228
Release: 2013
Genre:
ISBN:
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Inorganic material based electronics and photonics on unconventional substrates have shown tremendous unprecedented applications, especially in areas that traditional wafer based electronics and photonics are unable to cover. These areas range from flexible and conformal consumer products to biocompatible medical devices. This thesis presents the research on single crystal silicon nanomembrane photonics on different substrates, especially flexible substrates. A transfer method has been developed to transfer silicon nanomembrane defect-freely onto glass and flexible polyimide substrates. Using this method, intricate single crystal silicon nanomembrane device, such as photonic crystal microcavity, has been transferred onto flexible substrates. To test the device, subwavelength grating couplers are designed and implemented to couple light in and out of the transferred waveguides with high coupling efficiency. The cavity shows a quality factor ~ 9000 with water cladding and ~30000 with glycerol cladding, which is comparable to the same cavity demonstrated on silicon-on-insulator platform, indicating the high quality of the transferred silicon nanomembrane. The device could be bended to a radius less than 15 mm. The experiments show that the resonant wavelength shifts to longer wavelength under tensile stress, while it shifts to shorter wavelength under compressive stress. The sensitivity of the cavity is ~70 nm/RIU, which is independent of bending radius. This demonstration opens vast possibilities for a whole new range of high performance, light-weight and conformal silicon photonic devices. The techniques and devices (e.g. wafer bonding, stamp printing, subwavelength grating couplers, and modulator) generated in the research can also be beneficial for other research fields.

Towards Perfect Light Coupling and Absorption in Nanomembranes with Omni-directional Anti-reflection and Photonic Crystal Structures

Towards Perfect Light Coupling and Absorption in Nanomembranes with Omni-directional Anti-reflection and Photonic Crystal Structures
Author: Arvinder Singh Chadha
Publisher:
Total Pages: 109
Release: 2014
Genre: Light absorption
ISBN:
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Silicon photonics is realized as a promising platform to meet the requirements of higher bandwidth and low cost high density monolithic integration. More recent demonstrations of a variety of stretchable, foldable and transfer printed ultra-thin silicon integrated circuits have instigated the use of flexible silicon nanomembrane for practical applications. Equally impressive innovations are demonstrated in the area of flat screen displays, smart cards, eyeglasses, and wearable displays. However, the overall efficiency of a variety of optical device is limited by poor light management resulting from difficulty of light coupling, small absorption volume in thin-film nanomembrane, and glare at oblique incidence to name a few. The aim of this thesis is to present the work of micro and nano-scale structures for out-of-plane light coupling and absorption for integrated silicon photonics and high performance solar cells and photodetectors, with maximum absorption in the functional layer and minimal front-surface reflection and minimal rearsurface transmission. Perfect absorption in a variety of semiconductor nanomembranes (NM) and atomic layers of two dimensional (2D) materials over different wavelength spectrum is realized due to local field intensity enhancement at critical coupling to the guided resonances of a photonic crystal (PC). A judicious choice of grating parameters tailors the power diffracted in the zeroth order and higher order modes making the device work as a broadband reflector, an in-plane coupler or a combination of both reflector and an inplane coupler. At surface normal incidence, the polarization dependence of the grating based reflector is eliminated by the use of 2D photonic crystals. The incorporation of such a reflector after the functional nanomembrane layer reduces the back-surface transmission. Effect of incident angle, polarization and incident plane misalignment dependence on the reflection of a silicon NM based reflector are investigated in detail. The front-surface Fresnel reflection is reduced with the incorporation of an omnidirectional anti-reflection coating (Omni-ARC) based on nanostructures or by deposition of graded refractive index (GRIN) films. A design methodology based on the comparison of the rate of change of the refractive index profile of nanostructures of different shapes and thickness as an equivalent GRIN film suggests the minimum feature size needed to give near perfect ARC. Numerical models were built to account for the non - uniform GRIN film deposition on both rigid and flexible, flat and curved surfaces resulting from the variation in the resonant infrared matrix-assisted pulsed laser evaporation (RIR-MAPLE) process technology. With the miniaturization of the devices, the effect of finite beam size and finite active area of the photonic components on the optical properties like transmission, reflection and scattering loss was studied as well. All the numerical studies presented in the thesis are validated by experimental results.

Nanomembranes

Nanomembranes
Author: Yongfeng Mei
Publisher: John Wiley & Sons
Total Pages: 599
Release: 2022-06-15
Genre: Technology & Engineering
ISBN: 3527813926
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Nanomembranes Provides a thorough overview of the field of nanomembranes, covering materials science, fabrication processes, properties, and applications In recent years, the unique nature of the nanomembrane has led to new technology and applications in areas including flexible electronics, photonics, robotics, biology, microelectromechanical systems, and lab-on-a-chip (LOC) devices. Highly suitable for assembling three-dimensional structures, the nanomembrane can be integrated into devices and systems using conventional thin film technology. Nanomembranes: Materials, Properties, and Applications is an up-to-date review of recent advances in the rapidly expanding area within nanoscience and technology. Edited by leading researchers, the book covers the fabrications, properties, applications, design concepts, and challenges of nanomembranes and other nano-scale assembled structures. In-depth chapters address topics including three- and four-dimensional origami, nanomembrane-based transient electronics, development of inorganic flexible electronics, magnetic nanomembranes, bio-applications of three-dimensional scaffolds, nanomembrane-based micro and nanorobots, passive electronic components based on self-rolled-up nanomembranes, and more. Covers nanomembranes as well as nanostructures made from semiconductor, metal, insulator, polymer, and composite materials Provides broad overview of two-dimensional materials and assembled structures including origami and kirigami structures Explores applications of nanomembrane such as batteries, supercapacitors, robotics, electronics, and cell scaffolding Discusses nanomembranes made from polymeric materials, mechanical forces during deformation, and assembly of nanomembranes, Addresses monolayer two-dimensional materials such as graphene and transition metal dichalcogenides Nanomembranes: Materials, Properties, and Applications is an invaluable resource for material scientists, engineers, physicists, and chemists in academia and industry, and an excellent text for graduate students and researchers across disciplines with interest in the rapidly growing field.

Nanomembrane Surface Emitting Light Sources

Nanomembrane Surface Emitting Light Sources
Author: Santhad Chuwongin
Publisher:
Total Pages:
Release: 2014
Genre: Membranes (Technology)
ISBN:
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Crystalline semiconductor nanomembranes (NM), which are transferable, stackable, bondable and manufacturable, offer unprecedented opportunities for unique electronic and photonic devices for vertically stacked high density photonic/electronic integration, high performance flexible electronics and flexible photonics. High quality single crystalline silicon NMs (Si NM) have been transferred onto various foreign substrates, such as glass and flexible Polyethylene terephthalate (PET) plastics, based on low temperature transfer and stacking processes, developed by various groups. In the last few years, significant progress has been made by Ma's group on record high-speed flexible electronics, and high performance flexible Germanium (Ge) photodetectors, based on transferable Si/SiGe NMs. Many excellent results have also been reported by Lagally and Rogers's group on the unique electronic, photonic and thermoelectronic, and mechanical properties associated with this new class of inorganic flexible semiconductor membrane material systems. In this thesis, the design, fabrication and characterization of these following unique photonic devices, with focus on the NM broadband reflectors both on SOI and glass substrates, flexible crystalline InP NM LEDs arrays on PET substrate, and membrane reflector vertical cavity surface emitting lasers (MR-VCSELs) on silicon substrate, will be investigated in detail. The single crystalline silicon membrane reflectors (MR) based on Fano resonance or guided mode resonance (GMR) effect have been designed, fabricated, characterized, and compared their measured results with calculated ones and all of them agreed very well. Importantly, all of these MRs will be employed to replace distributed Bragg reflectors (DBRs) in the conventional InP-based VCSEL and provide a very compact resonant cavity for MR-VCSELs which will be discussed later. The flexible crystalline InP NM LEDs arrays for high performance flexible electronics and photonics have been experimentally demonstrated, transferred onto PET substrate based on low temperature transfer and stacking processes including frame-assisted membrane transfer process (FAMT), and both optically and electrically characterized. The III-V based VCSELs on Si substrate by transfer printing technique have been designed, fabricated, and characterized. The InGaAsP quantum wells embedded in a Si-MR cavity have been performed. Unlike the conventional DBR-based VCSEL, the ultra-thin DBR-free MR-VCSELs can be bonded or transferred onto Si substrate after finisheing laser fabrication that offers a very simple and agile approach to large sacale photonic herogeneous integration. Unlocked constraints in lattice mismatches and thermal mismatches, moving forward to a wide range of application in optoelectronic and photonic devices, and integrated systems.

Silicon Nanomembranes

Silicon Nanomembranes
Author: John A. Rogers
Publisher: John Wiley & Sons
Total Pages: 368
Release: 2016-08-08
Genre: Technology & Engineering
ISBN: 3527338314
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Edited by the leaders in the fi eld, with chapters from highly renowned international researchers, this is the fi rst coherent overview of the latest in silicon nanomembrane research. As such, it focuses on the fundamental and applied aspects of silicon nanomembranes, ranging from synthesis and manipulation to manufacturing, device integration and system level applications, including uses in bio-integrated electronics, three-dimensional integrated photonics, solar cells, and transient electronics. The first part describes in detail the fundamental physics and materials science involved, as well as synthetic approaches and assembly and manufacturing strategies, while the second covers the wide range of device applications and system level demonstrators already achieved, with examples taken from electronics and photonics and from biomedicine and energy.

Feature Papers in Electronic Materials Section

Feature Papers in Electronic Materials Section
Author: Fabrizio Roccaforte
Publisher:
Total Pages: 0
Release: 2022
Genre:
ISBN: 9783036532264
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This book entitled "Feature Papers in Electronic Materials Section" is a collection of selected papers recently published on the journal Materials, focusing on the latest advances in electronic materials and devices in different fields (e.g., power- and high-frequency electronics, optoelectronic devices, detectors, etc.). In the first part of the book, many articles are dedicated to wide band gap semiconductors (e.g., SiC, GaN, Ga2O3, diamond), focusing on the current relevant materials and devices technology issues. The second part of the book is a miscellaneous of other electronics materials for various applications, including two-dimensional materials for optoelectronic and high-frequency devices. Finally, some recent advances in materials and flexible sensors for bioelectronics and medical applications are presented at the end of the book.

Micromachining

Micromachining
Author: Zdravko Stanimirović
Publisher: BoD – Books on Demand
Total Pages: 174
Release: 2019-11-20
Genre: Technology & Engineering
ISBN: 1789238099
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To present their work in the field of micromachining, researchers from distant parts of the world have joined their efforts and contributed their ideas according to their interest and engagement. Their articles will give you the opportunity to understand the concepts of micromachining of advanced materials. Surface texturing using pico- and femto-second laser micromachining is presented, as well as the silicon-based micromachining process for flexible electronics. You can learn about the CMOS compatible wet bulk micromachining process for MEMS applications and the physical process and plasma parameters in a radio frequency hybrid plasma system for thin-film production with ion assistance. Last but not least, study on the specific coefficient in the micromachining process and multiscale simulation of influence of surface defects on nanoindentation using quasi-continuum method provides us with an insight in modelling and the simulation of micromachining processes. The editors hope that this book will allow both professionals and readers not involved in the immediate field to understand and enjoy the topic.

Nanoscale Science and Technology

Nanoscale Science and Technology
Author: Robert Kelsall
Publisher: John Wiley & Sons
Total Pages: 472
Release: 2005-11-01
Genre: Technology & Engineering
ISBN: 0470020865
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Nanotechnology is a vital new area of research and development addressing the control, modification and fabrication of materials, structures and devices with nanometre precision and the synthesis of such structures into systems of micro- and macroscopic dimensions. Future applications of nanoscale science and technology include motors smaller than the diameter of a human hair and single-celled organisms programmed to fabricate materials with nanometer precision. Miniaturisation has revolutionised the semiconductor industry by making possible inexpensive integrated electronic circuits comprised of devices and wires with sub-micrometer dimensions. These integrated circuits are now ubiquitous, controlling everything from cars to toasters. The next level of miniaturisation, beyond sub-micrometer dimensions into nanoscale dimensions (invisible to the unaided human eye) is a booming area of research and development. This is a very hot area of research with large amounts of venture capital and government funding being invested worldwide, as such Nanoscale Science and Technology has a broad appeal based upon an interdisciplinary approach, covering aspects of physics, chemistry, biology, materials science and electronic engineering. Kelsall et al present a coherent approach to nanoscale sciences, which will be invaluable to graduate level students and researchers and practising engineers and product designers.

Quantum Information Processing with Diamond

Quantum Information Processing with Diamond
Author: Steven Prawer
Publisher: Elsevier
Total Pages: 367
Release: 2014-05-12
Genre: Science
ISBN: 0857096680
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Diamond nitrogen vacancy (NV) color centers can transform quantum information science into practical quantum information technology, including fast, safe computing. Quantum Information Processing with Diamond looks at the principles of quantum information science, diamond materials, and their applications. Part one provides an introduction to quantum information processing using diamond, as well as its principles and fabrication techniques. Part two outlines experimental demonstrations of quantum information processing using diamond, and the emerging applications of diamond for quantum information science. It contains chapters on quantum key distribution, quantum microscopy, the hybridization of quantum systems, and building quantum optical devices. Part three outlines promising directions and future trends in diamond technologies for quantum information processing and sensing. Quantum Information Processing with Diamond is a key reference for R&D managers in industrial sectors such as conventional electronics, communication engineering, computer science, biotechnology, quantum optics, quantum mechanics, quantum computing, quantum cryptology, and nanotechnology, as well as academics in physics, chemistry, biology, and engineering. Brings together the topics of diamond and quantum information processing Looks at applications such as quantum computing, neural circuits, and in vivo monitoring of processes at the molecular scale