Author: Jonathan V. Sweedler
Publisher: VCH Publishers
ISBN:
Category : Science
Languages : en
Pages : 432
Book Description
Charge-transfer Devices in Spectroscopy
Author: Jonathan V. Sweedler
Publisher: VCH Publishers
ISBN:
Category : Science
Languages : en
Pages : 432
Book Description
Publisher: VCH Publishers
ISBN:
Category : Science
Languages : en
Pages : 432
Book Description
Charge-Transfer Devices in Spectroscopy
Charge Transfer Device Detectors for Analytical Optical Spectroscopy - Operations and Characteristics
Author: R. B. Bilhorn
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
Book Description
This article is the first in a two part series describing the operation, characteristics and application of a new class of solid -state multichannel UV-visible detectors. In this manuscript, Charge Transfer Devices (CTDs) are described. Detector characteristics pertinent to spectroscopic application including quantum efficiency, read noise, dark count rate and available formats are emphasized. Unique capabilities such as the ability to non-destructively read out the detector array, and the ability to alter the effective detector element size by a process called binning are described. CTDs with peak quantum efficiencies over 80% and significant responsivity over the wavelength range of 0.1nm to 1100nm are discussed. Exceptionally low dark count rates which allow integration times up to many hours and read noises more than two orders of magnitude lower than commercially available PDA detectors both contribute to the outstanding performance offered by these detectors. Keywords: Spectroscopic detectors; Charge transfer devices; Charge coupled device; Charge injection device; OPtical spectroscopy.
Publisher:
ISBN:
Category :
Languages : en
Pages : 55
Book Description
This article is the first in a two part series describing the operation, characteristics and application of a new class of solid -state multichannel UV-visible detectors. In this manuscript, Charge Transfer Devices (CTDs) are described. Detector characteristics pertinent to spectroscopic application including quantum efficiency, read noise, dark count rate and available formats are emphasized. Unique capabilities such as the ability to non-destructively read out the detector array, and the ability to alter the effective detector element size by a process called binning are described. CTDs with peak quantum efficiencies over 80% and significant responsivity over the wavelength range of 0.1nm to 1100nm are discussed. Exceptionally low dark count rates which allow integration times up to many hours and read noises more than two orders of magnitude lower than commercially available PDA detectors both contribute to the outstanding performance offered by these detectors. Keywords: Spectroscopic detectors; Charge transfer devices; Charge coupled device; Charge injection device; OPtical spectroscopy.
Applications of Charge Transfer Devices in Spectroscopy
Author: P. M. Epperson
Publisher:
ISBN:
Category :
Languages : en
Pages : 33
Book Description
This article discusses the use of charge transfer devices (CTDs) in spectroscopy. This paper focuses on the spectroscopic applications of CTDs. A brief history of the development of these detectors and their application in scientific imaging is presented. The use of CTDs in spectroscopy is illustrated by four applications in challenging areas of ultraviolet-visible spectroscopy. Keywords: Multichannel techniques, Spectroscopic detectors, Charge transfer devices, Ultraviolet spectroscopy.
Publisher:
ISBN:
Category :
Languages : en
Pages : 33
Book Description
This article discusses the use of charge transfer devices (CTDs) in spectroscopy. This paper focuses on the spectroscopic applications of CTDs. A brief history of the development of these detectors and their application in scientific imaging is presented. The use of CTDs in spectroscopy is illustrated by four applications in challenging areas of ultraviolet-visible spectroscopy. Keywords: Multichannel techniques, Spectroscopic detectors, Charge transfer devices, Ultraviolet spectroscopy.
Solid-State Imaging with Charge-Coupled Devices
Author: A.J. Theuwissen
Publisher: Springer Science & Business Media
ISBN: 0306471191
Category : Science
Languages : en
Pages : 412
Book Description
Solid-State Imaging with Charge-Coupled Devices covers the complete imaging chain: from the CCD's fundamentals to the applications. The book is divided into four main parts: the first deals with the basics of the charge-coupled devices in general. The second explains the imaging concepts in close relation to the classical television application. Part three goes into detail on new developments in the solid-state imaging world (light sensitivity, noise, device architectures), and part four rounds off the discussion with a variety of applications and the imager technology. The book is a reference work intended for all who deal with one or more aspects of solid- state imaging: the educational, scientific and industrial world. Graduates, undergraduates, engineers and technicians interested in the physics of solid-state imagers will find the answers to their imaging questions. Since each chapter concludes with a short section `Worth Memorizing', reading this short summary allows readers to continue their reading without missing the main message from the previous section.
Publisher: Springer Science & Business Media
ISBN: 0306471191
Category : Science
Languages : en
Pages : 412
Book Description
Solid-State Imaging with Charge-Coupled Devices covers the complete imaging chain: from the CCD's fundamentals to the applications. The book is divided into four main parts: the first deals with the basics of the charge-coupled devices in general. The second explains the imaging concepts in close relation to the classical television application. Part three goes into detail on new developments in the solid-state imaging world (light sensitivity, noise, device architectures), and part four rounds off the discussion with a variety of applications and the imager technology. The book is a reference work intended for all who deal with one or more aspects of solid- state imaging: the educational, scientific and industrial world. Graduates, undergraduates, engineers and technicians interested in the physics of solid-state imagers will find the answers to their imaging questions. Since each chapter concludes with a short section `Worth Memorizing', reading this short summary allows readers to continue their reading without missing the main message from the previous section.
Molecular Spectroscopy Using Charge Transfer Device Detectors
Author: Jonathan V. Sweedler
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Recent advances in the capabilities of state-of-the-art array detectors have the potential to greatly improve analytical spectroscopy. The operational characteristics of several charge transfer device (CTD) detectors investigated in our laboratories show them to be highly suitable for application in UV-Vis molecular spectroscopy. The electro-optical characteristics of these devices including dynamic range, quantum efficiency, noise, resistance to blooming and lag are contrasted to photodiode arrays, vidicons, and photomultiplier tubes. With peak quantum efficiencies of 80%, read noises over two orders of magnitude lower than photodiode array detectors, and virtually no dark current, several of these CTD detectors are extremely well suited for luminescence spectroscopy. The performance of several spectroscopic systems which effectively use the various device geometries is presented. A linear concave grating spectrograph employing a 30-watt deuterium source and a CTD detector capable of extremely sensitive fluorescence measurements is described. Multichannel detectors, Molecular spectroscopy, Fluorescence detection, Luminescence detection, Charge transfer devices. (MJM).
Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Recent advances in the capabilities of state-of-the-art array detectors have the potential to greatly improve analytical spectroscopy. The operational characteristics of several charge transfer device (CTD) detectors investigated in our laboratories show them to be highly suitable for application in UV-Vis molecular spectroscopy. The electro-optical characteristics of these devices including dynamic range, quantum efficiency, noise, resistance to blooming and lag are contrasted to photodiode arrays, vidicons, and photomultiplier tubes. With peak quantum efficiencies of 80%, read noises over two orders of magnitude lower than photodiode array detectors, and virtually no dark current, several of these CTD detectors are extremely well suited for luminescence spectroscopy. The performance of several spectroscopic systems which effectively use the various device geometries is presented. A linear concave grating spectrograph employing a 30-watt deuterium source and a CTD detector capable of extremely sensitive fluorescence measurements is described. Multichannel detectors, Molecular spectroscopy, Fluorescence detection, Luminescence detection, Charge transfer devices. (MJM).
Handbook of Materials Modeling
Author: Sidney Yip
Publisher: Springer Science & Business Media
ISBN: 1402032862
Category : Science
Languages : en
Pages : 2903
Book Description
The first reference of its kind in the rapidly emerging field of computational approachs to materials research, this is a compendium of perspective-providing and topical articles written to inform students and non-specialists of the current status and capabilities of modelling and simulation. From the standpoint of methodology, the development follows a multiscale approach with emphasis on electronic-structure, atomistic, and mesoscale methods, as well as mathematical analysis and rate processes. Basic models are treated across traditional disciplines, not only in the discussion of methods but also in chapters on crystal defects, microstructure, fluids, polymers and soft matter. Written by authors who are actively participating in the current development, this collection of 150 articles has the breadth and depth to be a major contributor toward defining the field of computational materials. In addition, there are 40 commentaries by highly respected researchers, presenting various views that should interest the future generations of the community. Subject Editors: Martin Bazant, MIT; Bruce Boghosian, Tufts University; Richard Catlow, Royal Institution; Long-Qing Chen, Pennsylvania State University; William Curtin, Brown University; Tomas Diaz de la Rubia, Lawrence Livermore National Laboratory; Nicolas Hadjiconstantinou, MIT; Mark F. Horstemeyer, Mississippi State University; Efthimios Kaxiras, Harvard University; L. Mahadevan, Harvard University; Dimitrios Maroudas, University of Massachusetts; Nicola Marzari, MIT; Horia Metiu, University of California Santa Barbara; Gregory C. Rutledge, MIT; David J. Srolovitz, Princeton University; Bernhardt L. Trout, MIT; Dieter Wolf, Argonne National Laboratory.
Publisher: Springer Science & Business Media
ISBN: 1402032862
Category : Science
Languages : en
Pages : 2903
Book Description
The first reference of its kind in the rapidly emerging field of computational approachs to materials research, this is a compendium of perspective-providing and topical articles written to inform students and non-specialists of the current status and capabilities of modelling and simulation. From the standpoint of methodology, the development follows a multiscale approach with emphasis on electronic-structure, atomistic, and mesoscale methods, as well as mathematical analysis and rate processes. Basic models are treated across traditional disciplines, not only in the discussion of methods but also in chapters on crystal defects, microstructure, fluids, polymers and soft matter. Written by authors who are actively participating in the current development, this collection of 150 articles has the breadth and depth to be a major contributor toward defining the field of computational materials. In addition, there are 40 commentaries by highly respected researchers, presenting various views that should interest the future generations of the community. Subject Editors: Martin Bazant, MIT; Bruce Boghosian, Tufts University; Richard Catlow, Royal Institution; Long-Qing Chen, Pennsylvania State University; William Curtin, Brown University; Tomas Diaz de la Rubia, Lawrence Livermore National Laboratory; Nicolas Hadjiconstantinou, MIT; Mark F. Horstemeyer, Mississippi State University; Efthimios Kaxiras, Harvard University; L. Mahadevan, Harvard University; Dimitrios Maroudas, University of Massachusetts; Nicola Marzari, MIT; Horia Metiu, University of California Santa Barbara; Gregory C. Rutledge, MIT; David J. Srolovitz, Princeton University; Bernhardt L. Trout, MIT; Dieter Wolf, Argonne National Laboratory.
High Performance Charge Transfer Device Detectors
Author: J. V. Sweedler
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
Book Description
This article is the first in a two-part series describing charge transfer devices (CTDs) -- a relatively new class of multichannel detectors for the ultraviolet to near-infrared spectral regions. An overview of the operation and the characteristics of CTDs relevant to analytical spectroscopy is presented. The sensitivity and dynamic range obtainable from CTD detectors are discussed and compared to the sensitivity and dynamic range obtainable from other spectroscopic detectors. Unique capabilities such as the ability to nondestructively readout the detector array and the ability to alter the effective detector element size using the process of binning are described. Detector array formats ranging from single elements to extremely large arrays, large photoactive areas, high quantum efficiencies, dark count rates allowing long integration times and low read noises all contribute to the outstanding performance and great flexibility offered by CTDs.
Publisher:
ISBN:
Category :
Languages : en
Pages : 32
Book Description
This article is the first in a two-part series describing charge transfer devices (CTDs) -- a relatively new class of multichannel detectors for the ultraviolet to near-infrared spectral regions. An overview of the operation and the characteristics of CTDs relevant to analytical spectroscopy is presented. The sensitivity and dynamic range obtainable from CTD detectors are discussed and compared to the sensitivity and dynamic range obtainable from other spectroscopic detectors. Unique capabilities such as the ability to nondestructively readout the detector array and the ability to alter the effective detector element size using the process of binning are described. Detector array formats ranging from single elements to extremely large arrays, large photoactive areas, high quantum efficiencies, dark count rates allowing long integration times and low read noises all contribute to the outstanding performance and great flexibility offered by CTDs.
Spectrochemical Measurements with Multichannel Integrating Detectors
Author: R. B. Bilhorn
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
Book Description
This is the second article in a two part series describing the operation, performance characteristics, and spectroscopic application of Charge Transfer Devices (CTDs) in analytical chemistry. The first article in the series describes the new generation of integrating multichannel detectors, the charge also discusses the spectroscopically pertinent characteristics of these detectors and presents performance data for representative devices. This article covers three major topics related to the optimum use of integrating detectors in analytical spectroscopy. The advantages of employing integrating multichannel detectors in analytical spectroscopy rather than a single detector in a wavelength scanning system or an interferometer are discussed. Included are detector read noise considerations which have not been considered in previous performance comparisons. Keywords: Charge transfer devices, Charge coupled device, Charge injection device, Multichannel emission spectroscopy, Multichannel luminescence spectroscopy, Multichannel absorption spectroscopy.
Publisher:
ISBN:
Category :
Languages : en
Pages : 48
Book Description
This is the second article in a two part series describing the operation, performance characteristics, and spectroscopic application of Charge Transfer Devices (CTDs) in analytical chemistry. The first article in the series describes the new generation of integrating multichannel detectors, the charge also discusses the spectroscopically pertinent characteristics of these detectors and presents performance data for representative devices. This article covers three major topics related to the optimum use of integrating detectors in analytical spectroscopy. The advantages of employing integrating multichannel detectors in analytical spectroscopy rather than a single detector in a wavelength scanning system or an interferometer are discussed. Included are detector read noise considerations which have not been considered in previous performance comparisons. Keywords: Charge transfer devices, Charge coupled device, Charge injection device, Multichannel emission spectroscopy, Multichannel luminescence spectroscopy, Multichannel absorption spectroscopy.
Development of Charge Transfer Devices for 1-2 Micron Imaging
Author: Ira Deyhimy
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
There is considerable interest in the development of an imaging system within the wavelength range of 1.0 - 1.8 micrometers. The concept of charge coupled devices emerges as one of the viable candidates for such an application. The advantages of a non-MIS, Schottky barrier, buried channel CCD are discussed. A suitable material system for the 1.0 - 1.8 micrometers CCd application is the n-GaA1Sb/p+-GaSb hetero-system. Substantially improved surface morphology for this system is reported. This is achieved by the addition of As to the GaA1Sb layer, thus forming the quaternary: GaA1AsSb. Characterization of Schottky barriers to this material are reported. the Schottky barrier height is found to be>0.7 eV. (Author).
Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
There is considerable interest in the development of an imaging system within the wavelength range of 1.0 - 1.8 micrometers. The concept of charge coupled devices emerges as one of the viable candidates for such an application. The advantages of a non-MIS, Schottky barrier, buried channel CCD are discussed. A suitable material system for the 1.0 - 1.8 micrometers CCd application is the n-GaA1Sb/p+-GaSb hetero-system. Substantially improved surface morphology for this system is reported. This is achieved by the addition of As to the GaA1Sb layer, thus forming the quaternary: GaA1AsSb. Characterization of Schottky barriers to this material are reported. the Schottky barrier height is found to be>0.7 eV. (Author).