01.01.2001 – 31.03.2003 - Archiv Physik
... magnetization jumps due to independent magnons in frustrated quantum spin lattices, Phys. Rev. Lett. 88 (2002) 167207 H.-J. Schmidt, J. Schnack, Partition functions and symmetric polynomials, Am. J. Phys. 70 (2002) 53-57 J. Schnack, H.-J. Schmidt, J. Richter, J. Schulenburg, Independent magnon state ...
... magnetization jumps due to independent magnons in frustrated quantum spin lattices, Phys. Rev. Lett. 88 (2002) 167207 H.-J. Schmidt, J. Schnack, Partition functions and symmetric polynomials, Am. J. Phys. 70 (2002) 53-57 J. Schnack, H.-J. Schmidt, J. Richter, J. Schulenburg, Independent magnon state ...
development and verification of the non
... Adaptive optics (AO) systems have become an essential part of ground-based telescopes and enable diffraction-limited imaging at near-IR and mid-IR wavelengths. For several key science applications the required wavefront quality is higher than what current systems can deliver. For instance obtaining ...
... Adaptive optics (AO) systems have become an essential part of ground-based telescopes and enable diffraction-limited imaging at near-IR and mid-IR wavelengths. For several key science applications the required wavefront quality is higher than what current systems can deliver. For instance obtaining ...
Low-Temperature Bonding for Silicon-Based Micro
... Silicon (Si)-based micro-optical systems are of great importance for environmental and healthcare applications. Such systems, which can be highly integrated, enable fast and efficient signal acquisition and data processing. In addition, the fabrication of Si-based devices is compatible with parallel ...
... Silicon (Si)-based micro-optical systems are of great importance for environmental and healthcare applications. Such systems, which can be highly integrated, enable fast and efficient signal acquisition and data processing. In addition, the fabrication of Si-based devices is compatible with parallel ...
Design and Analysis of Integrated Optical Waveguide Structures and
... This thesis describes the design, fabrication and analysis of high-refractive-index-contrast (∆n) photonic structures. Besides silicon nitride (Si3N4) strip waveguides, lateral tapers, bended waveguides, two-dimensional photonic crystals (PhCs) the focus lies on monolithically integrated waveguide b ...
... This thesis describes the design, fabrication and analysis of high-refractive-index-contrast (∆n) photonic structures. Besides silicon nitride (Si3N4) strip waveguides, lateral tapers, bended waveguides, two-dimensional photonic crystals (PhCs) the focus lies on monolithically integrated waveguide b ...
Document
... classical and quantum. OAM eigenmodes, can be used as an alphabet for free-space communication [6]. The multidimensionality of the OAM space allows to expand the amount of the information, carried at the same time, to the theoretically infinite value, while the polarization space is limited to a sin ...
... classical and quantum. OAM eigenmodes, can be used as an alphabet for free-space communication [6]. The multidimensionality of the OAM space allows to expand the amount of the information, carried at the same time, to the theoretically infinite value, while the polarization space is limited to a sin ...
Integrated Opto-Micro uidic Lab-on-a-Chip in
... mixed and analysed, allowing for parallel processing and for large sets of data to be acquired in a short time. There are three main droplet generation techniques: co-owing systems, T-junction and ow-focusing devices. In all cases the dispersed phase is injected in the device where it comes in con ...
... mixed and analysed, allowing for parallel processing and for large sets of data to be acquired in a short time. There are three main droplet generation techniques: co-owing systems, T-junction and ow-focusing devices. In all cases the dispersed phase is injected in the device where it comes in con ...
Generation of Repumping Light for Ultracold Strontium Experiments
... Until recently, these types of ultracold atom experiments have mainly utilized single-valence-electron atoms; lithium is a primary example. Experimentalists have lately broadened their toolboxes to include multi-valence electron atoms, such as strontium. By nature of having more complex electronic s ...
... Until recently, these types of ultracold atom experiments have mainly utilized single-valence-electron atoms; lithium is a primary example. Experimentalists have lately broadened their toolboxes to include multi-valence electron atoms, such as strontium. By nature of having more complex electronic s ...
A minimally invasive in-fibre Bragg grating sensor
... other piezoelectric, resistive or other solid-state sensing technologies because they are: ...
... other piezoelectric, resistive or other solid-state sensing technologies because they are: ...
Fiber Optic Lab Manual
... This manual is an action-filled guide for completing nine stimulating activities related to fiber optic communications. The manual is compatible with most classroom texts and is ideal for creating a lab to go with almost any vocational or secondary-education fiber optics course. For best results we ...
... This manual is an action-filled guide for completing nine stimulating activities related to fiber optic communications. The manual is compatible with most classroom texts and is ideal for creating a lab to go with almost any vocational or secondary-education fiber optics course. For best results we ...
Role of wavefront aberrations of amplified femtosecond pulses in
... 3.3. Supercontinuum generation in bulk media ........................................................................... 61 3.3.1 Diffraction ....................................................................................................................... 61 3.3.2 Dispersion .................. ...
... 3.3. Supercontinuum generation in bulk media ........................................................................... 61 3.3.1 Diffraction ....................................................................................................................... 61 3.3.2 Dispersion .................. ...
Influence of heterogeneous refractivity on optical wave
... refractivity, which can be prevalent in coastal environments (AGARD 1995). The meteorological conditions harbored near coastal regions are extremely conducive to complex refractivity anomalies as a result of horizontal variability in surface features (e.g., land/sea surface temperature, aerodynamic ...
... refractivity, which can be prevalent in coastal environments (AGARD 1995). The meteorological conditions harbored near coastal regions are extremely conducive to complex refractivity anomalies as a result of horizontal variability in surface features (e.g., land/sea surface temperature, aerodynamic ...
Chapter 4 Optical Resonator
... cleaved along crystal planes. These surfaces act as reflectors and therefore serve as the resonator mirrors. Consider a crystal with refractive index n = 3.6 placed in air (n = 1). The light reflects between two parallel surfaces separated by the distance d = 0.2 mm. Determine the spacing between re ...
... cleaved along crystal planes. These surfaces act as reflectors and therefore serve as the resonator mirrors. Consider a crystal with refractive index n = 3.6 placed in air (n = 1). The light reflects between two parallel surfaces separated by the distance d = 0.2 mm. Determine the spacing between re ...
Fused Silica Transmission Gratings
... Gratings can be classified in a multitude of different ways. The main classifications for freespace gratings, together with relevant characteristics and examples are given below. It is important to note that for all grating types, the grating equation alone determines the geometric diffraction prope ...
... Gratings can be classified in a multitude of different ways. The main classifications for freespace gratings, together with relevant characteristics and examples are given below. It is important to note that for all grating types, the grating equation alone determines the geometric diffraction prope ...
a software to evaluate and understand light pollution from road
... Sometime it is confused with the UFF, which is obtained dividing ULOR by the LORL. In spite of the appearance, ULOR is an incorrect parameter to recognize more or less polluting luminaires. As a simplified example, consider two luminaires. Let’s assume that the first luminaire has an ULOR two thirds ...
... Sometime it is confused with the UFF, which is obtained dividing ULOR by the LORL. In spite of the appearance, ULOR is an incorrect parameter to recognize more or less polluting luminaires. As a simplified example, consider two luminaires. Let’s assume that the first luminaire has an ULOR two thirds ...
Microscopy - PSSurvival.com
... microscopic. Recovery of the protein crystals requires imaging which can be done by the intrinsic fluorescence of the protein or by using transmission microscopy. Both methods require an ultraviolet microscope as protein absorbs light at 280 nm. Protein will also fluorescence at approximately 353 nm ...
... microscopic. Recovery of the protein crystals requires imaging which can be done by the intrinsic fluorescence of the protein or by using transmission microscopy. Both methods require an ultraviolet microscope as protein absorbs light at 280 nm. Protein will also fluorescence at approximately 353 nm ...
Technical Guide
... Figure 4 indicates that decreasing the port fraction has a dramatic effect on increasing the sphere multiplier. For port fractions larger than 0.05, one begins to lose the advantage offered by the high reflectance coatings available for integrating spheres. The first rule of thumb for integrating sp ...
... Figure 4 indicates that decreasing the port fraction has a dramatic effect on increasing the sphere multiplier. For port fractions larger than 0.05, one begins to lose the advantage offered by the high reflectance coatings available for integrating spheres. The first rule of thumb for integrating sp ...
Chapter 4 Optical Resonator
... serve as the resonator mirrors. Consider a crystal with refractive index n = 3.6 placed in air (n = 1). The light reflects between two parallel surfaces separated by the distance d = 0.2 mm. Determine the spacing between resonance frequencies vf, the overall distributed loss coefficient ar, the fine ...
... serve as the resonator mirrors. Consider a crystal with refractive index n = 3.6 placed in air (n = 1). The light reflects between two parallel surfaces separated by the distance d = 0.2 mm. Determine the spacing between resonance frequencies vf, the overall distributed loss coefficient ar, the fine ...
Anti-reflective coating
An antireflective or anti-reflection (AR) coating is a type of optical coating applied to the surface of lenses and other optical elements to reduce reflection. In typical imaging systems, this improves the efficiency since less light is lost. In complex systems such as a telescope, the reduction in reflections also improves the contrast of the image by elimination of stray light. This is especially important in planetary astronomy. In other applications, the primary benefit is the elimination of the reflection itself, such as a coating on eyeglass lenses that makes the eyes of the wearer more visible to others, or a coating to reduce the glint from a covert viewer's binoculars or telescopic sight.Many coatings consist of transparent thin film structures with alternating layers of contrasting refractive index. Layer thicknesses are chosen to produce destructive interference in the beams reflected from the interfaces, and constructive interference in the corresponding transmitted beams. This makes the structure's performance change with wavelength and incident angle, so that color effects often appear at oblique angles. A wavelength range must be specified when designing or ordering such coatings, but good performance can often be achieved for a relatively wide range of frequencies: usually a choice of IR, visible, or UV is offered.