110 Result(s)
within
English
Electronics and Microelectronics, Instrumentation
Engineering, general
Manufacturing, Machines, Tools, Processes
**e **an
Chapter
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Chapter
Atomic Force Microscopy for Imaging Living Organisms: From DNA to Cell Motion
Scanning probe microscopes (SPM) form a new family of microscopes developed from the invention of the scanning tunneling microscope (STM) by Binnig and Rohrer in 1981 [1]. These microscopes have no lens but simpl...
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Chapter
Micromachined Scanning Tunneling Microscopes and Nanoprobes
The magnitude of a tunneling current that passes across a vacuum gap changes by about one decade as the gap changes by 0.1 nm. The very high sensitivity of electron tunneling with respect to the gap distance c...
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Chapter
Spektralapparate und Interferometer
Die gebräuchlichsten Geräte zur spektralen Zerlegung von Licht sind Prismen- und Gitterspektrometer sowie Fabry-Perot-Interferometer. Eine weitere Methode zur direkten Frequenzmessung ist das optische Überlage...
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Chapter
Sicherheit von Laser-Einrichtungen
Für den vorschriftsmäßigen Einsatz von Lasern wurde die europäische Norm „Sicherheit von Lasereinrichtungen DIN EN 60825–1“ herausgegeben. Zusätzlich hat die Berufsgenossenschaft eine eigene Unfallverhütungsvo...
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Chapter
Microsystems for Single-Molecule Handling and Modification
In the present chapter, we investigate a novel method for molecular manipulation and modification at the single-molecule level using microtechnologies, taking DNA as our target. A high-intensity high-frequency...
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Chapter
Near-Field Optics in Biology
Light microscopy is the single most important tool for cell biology. Visualisation of cells, tissue and microorganisms is taken for granted in most biology labs due to the development of microscopy some 400 ye...
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Chapter
Expanding the Field of Application of Scanning Probe Microscopy
In the present chapter, we focus on projects carried out to exploit the potential of scanning probe microscopy [1–14] in the field of nanotechnology. The studies carried out can be categorized as follows: ...
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Chapter
Nanoscale Characterization of Nanostructures and Nanodevices by Scanning Probe Microscopy
Semiconductor nanostructures such as quantum wires and quantum dots are receiving wide attention as new materials for the next generation of semiconductor devices, because many device properties are expected t...
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Chapter
Photodetektoren und Energiemeßgeräte
Eine der wichtigsten Kenngrößen eines Lasers ist dessen Ausgangsleistung, bei gepulsten Lasern die Pulsenergie. Zur Messung werden verschiedene Geräte benutzt, die im folgenden beschrieben werden.
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Chapter
Anwendungen und Entwicklungspotential
Der militärische Einsatz von Hochenergie-Lasern in „Star-Wars-“ und SDI-Projekten hat früher teilweise zu einem negativen Bild der Lasertechnik geführt. Neben diesen waffentechnischen Vorhaben existiert jedoch...
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Micromachining Tools for Nanosystems
Science and technology have always pushed towards micro miniaturization. In the late 1980s, a single atom was manipulated by scanning tunneling microscope (STM). The STM has a probe as sharp as an atom at the ...
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Chapter
Manipulation of Single DNA Molecules
In the post-genome stage, DNA information concerning individual people can be used for protection against or treatment of diseases. To meet this requirement, more rapid DNA analysis methods will be needed. Ana...
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Chapter and Conference Paper
Short-Pulse High-Repetitive N2-TE Lasers
We have studied the effects of shortening the excitation current on both the pulse-repetition rate (PRR) capabilities and the pulse duration of a low-pressure (P<200Torr) N2-TE laser. It has been found that the l...
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Chapter and Conference Paper
Laser Beam Fusion Cutting: Diagnostics and Modelling of Melt Drag and Ripple Formation
In laser beam fusion cutting the dynamics of the physical processes in the cutting front area and in the melt drag lead to ripple formation. In the case of high speed cutting the melt accelerated along the cut...
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Chapter and Conference Paper
Small Fiber Bundle Laser Structures Delivering 100 W Average Power
Due to their excellent thermal properties, flashlamp-pumped fiber bundle lasers (FBL) are a prospective approach to realize high average power solid state lasers /1,2/. The lasing medium is composed of a bundl...
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Chapter and Conference Paper
Superbroadband and Synchronized Multiline Oscillation of LiF:F2 − Color Center Laser
Multifrequency and broadband lasers are often used nowdays in science and technology applications: in laser spectroscopy, investigation of different media, testing of solar cells and photomaterials, nanosecond...
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Chapter and Conference Paper
The Communication Subsystem for Silex
The communication subsystem for the ESA project SILEX (Semiconductor Intersatellite Link Experiment) features direct detection and NRZ modulation with remote driving of 60mW diode lasers transmitters, and ultr...
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Chapter and Conference Paper
Phase and Structural Variations in the Surface Layers of Fe-Al-C System Monocrystals After Repeated Laser Treatment with Surface Fusion
Impulse laser treatment with fusion of metals surface is characterized by increasing in the dimensions of the treating zone, where thermohardening and nonhomogenious metal structure arise. This structure conta...
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Chapter and Conference Paper
New Generation of 2–12 μm Laser Radiation Photodetectors
The ultimate signal-to-noise performance of the semiconductor photodetector is limited by the statistical fluctuations of the thermal generation and recombination rates in the volume of photodetector material ...
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Chapter and Conference Paper
Activities of the European Space Agency in the Field of Optical Space Communication
The European Space Agency ESA is develo** an optical inter-orbit communication system enabling a link between a low-Earth orbiting (LEO) and a geostationary spacecraft (GEO). This so-called SILEX system allo...
