Biomedical Optical Imaging
... sample beam path, and a detector, as shown in Figure 1.2. Early OCT systems detected echoes of light based on low coherence interferometry with time domain detection techniques. A low coherence light source is directed into an interferometer and split into a signal and reference beam. Interference b ...
... sample beam path, and a detector, as shown in Figure 1.2. Early OCT systems detected echoes of light based on low coherence interferometry with time domain detection techniques. A low coherence light source is directed into an interferometer and split into a signal and reference beam. Interference b ...
Study on the Sensing Coating of the Optical Fibre CO2 Sensor
... 1.3. Optical Fibre Gas Sensors There are various ways of utilizing the optical fibres in various systems for chemical monitoring. They can be used for sample illumination and signal reception or they can be sensors per se by using special active fibre coatings, which are sensitive to the analysed su ...
... 1.3. Optical Fibre Gas Sensors There are various ways of utilizing the optical fibres in various systems for chemical monitoring. They can be used for sample illumination and signal reception or they can be sensors per se by using special active fibre coatings, which are sensitive to the analysed su ...
Two-step DFT propagation - MZA Associates Corporation
... dielectric media, given two limiting apertures. Next, we will present a simple step-by-step procedure to reduce any wave optics simulation problem, including propagation through optical systems and aberrating media, to one or more instances of the special case. ...
... dielectric media, given two limiting apertures. Next, we will present a simple step-by-step procedure to reduce any wave optics simulation problem, including propagation through optical systems and aberrating media, to one or more instances of the special case. ...
Alternative Beam Splitter/Compensator Configurations for Reduction
... using the Michelson interferometer have been in development since the 1950s. 1 The fundamentals of these techniques were well documented in the 1970 Aspen International Conference on Fourier Spectroscopy.2 The conventional Fourier Transform Spectrometer (FTS) splits incoming electromagnetic radiatio ...
... using the Michelson interferometer have been in development since the 1950s. 1 The fundamentals of these techniques were well documented in the 1970 Aspen International Conference on Fourier Spectroscopy.2 The conventional Fourier Transform Spectrometer (FTS) splits incoming electromagnetic radiatio ...
Cavity Enhanced Reflector Based Hybrid Silicon Laser
... on the same chip will become available. This, on its turn, enables exciting new applications such as ultra-fast optical communication links between different chips on a circuit board or low-cost lab-on-a-chip solutions. Most optical components necessary to build these systems, such as photonic wires ...
... on the same chip will become available. This, on its turn, enables exciting new applications such as ultra-fast optical communication links between different chips on a circuit board or low-cost lab-on-a-chip solutions. Most optical components necessary to build these systems, such as photonic wires ...
Focus Variation – a Robust Technology for High
... overview of surface metrology. This is above all due to their ability to perform area based measurements which are a prerequisite for many powerful surface texture parameters [5]. Although tactile systems nowadays are also able to perform area based measurements, such measurements usually last very ...
... overview of surface metrology. This is above all due to their ability to perform area based measurements which are a prerequisite for many powerful surface texture parameters [5]. Although tactile systems nowadays are also able to perform area based measurements, such measurements usually last very ...
Optical Phonon Interacting with Electrons in Carbon Nanotubes
... of the transverse mode. In the case of the longitudinal mode, on the other hand, the frequency is shifted to the lower energy side and exhibits a logarithmic divergence for small ω̃. Further, the self-energy has an imaginary part comparable or larger than the real part, meaning that the phonon has a ...
... of the transverse mode. In the case of the longitudinal mode, on the other hand, the frequency is shifted to the lower energy side and exhibits a logarithmic divergence for small ω̃. Further, the self-energy has an imaginary part comparable or larger than the real part, meaning that the phonon has a ...
Overview of Stimulated Brillouin Scattering Effect
... and suppressed due to four wave mixing in the fiber. The simulation results provide satisfied output result [7]. Lee et al. (2003) has used fiber Bragg grating (FBG) for SBS suppression. For suppressing the SBS effect they used a FBG fabricated within the „photosensitive‟ fiber. They used a sampled ...
... and suppressed due to four wave mixing in the fiber. The simulation results provide satisfied output result [7]. Lee et al. (2003) has used fiber Bragg grating (FBG) for SBS suppression. For suppressing the SBS effect they used a FBG fabricated within the „photosensitive‟ fiber. They used a sampled ...
Effect of pores on transmission properties of transparent ceramics
... transmission decreases in the visible part of the spectrum. The effect of pore size distribution on the in-line transmission at longer wavelengths can be ignored because the scattering in this range is very small. For further quantitative calculations, the measurement of small pores is necessary to ...
... transmission decreases in the visible part of the spectrum. The effect of pore size distribution on the in-line transmission at longer wavelengths can be ignored because the scattering in this range is very small. For further quantitative calculations, the measurement of small pores is necessary to ...
Coherent population trapping resonances at lower atomic
... However, the detected CPT peak is determined mainly by the trapped atomic population at the lower level |1ñ in the nonclosed L-system (Fig. 1) because of negligible population of its excited state |3ñ under the CPT condition (1). This statement was confirmed by our corresponding theoretical estimati ...
... However, the detected CPT peak is determined mainly by the trapped atomic population at the lower level |1ñ in the nonclosed L-system (Fig. 1) because of negligible population of its excited state |3ñ under the CPT condition (1). This statement was confirmed by our corresponding theoretical estimati ...
Measuring and Modelling Light Scattering in Paper
... response of a turbid medium, often in terms of its bidirectional reflectance distribution function (BRDF), for any illumination and viewing condition, provided that the optical parameters of the medium are known. These can in turn be estimated from bidirectional reflectance measurements, by solving ...
... response of a turbid medium, often in terms of its bidirectional reflectance distribution function (BRDF), for any illumination and viewing condition, provided that the optical parameters of the medium are known. These can in turn be estimated from bidirectional reflectance measurements, by solving ...
Design study of a Magneto-Optical Trap for laser cooling of rubidium
... Rubidium is an Alkali-metal. The Alkali-metals were the first group of atoms that was cooled and trapped [1]. They have transitions from the ground state to excited states, that correspond to wavelengths in the visible or near infra red (NIR) regions. They can also easily be generated in atomic beam ...
... Rubidium is an Alkali-metal. The Alkali-metals were the first group of atoms that was cooled and trapped [1]. They have transitions from the ground state to excited states, that correspond to wavelengths in the visible or near infra red (NIR) regions. They can also easily be generated in atomic beam ...
Get PDF - OSA Publishing
... Three-dimensional (3D) sensing for specular objects is required in many applications in research and industry [1–6]. A practical and suitable method to measure specular reflective surfaces is phase measuring reflectometry (or deflectometry) with fringe reflection technique [7–9]. M. C. Knauer and et ...
... Three-dimensional (3D) sensing for specular objects is required in many applications in research and industry [1–6]. A practical and suitable method to measure specular reflective surfaces is phase measuring reflectometry (or deflectometry) with fringe reflection technique [7–9]. M. C. Knauer and et ...
Ultrafast Nonlinear Optical Signals Viewed from the Molecule`s
... By using a quantum description of the field we show that examination of the relevant processes from the viewpoint of the material naturally leads to a description in terms of transition amplitudes rather than susceptibilities. Once the optical signals have been recast in terms of these transition am ...
... By using a quantum description of the field we show that examination of the relevant processes from the viewpoint of the material naturally leads to a description in terms of transition amplitudes rather than susceptibilities. Once the optical signals have been recast in terms of these transition am ...
Portable Ultrafast Blue Light Sources Designed With Frequency
... such as microscopy, optical micromanipulation, and biomedical imaging, continues to justify the need for compact low-cost lasers that demonstrate true portability and practicality. The development and exploitation of photonics-based techniques that are applicable to biology and medicine is of partic ...
... such as microscopy, optical micromanipulation, and biomedical imaging, continues to justify the need for compact low-cost lasers that demonstrate true portability and practicality. The development and exploitation of photonics-based techniques that are applicable to biology and medicine is of partic ...
Müller cells separate between wavelengths to improve day vision
... large retinal region of ~20 photoreceptors, and concentrated onto a single central cone13. Consequently, a reduced light intensity propagates in the surrounding area, corresponding to the rods' receptive fields. Therefore, the intensity of light in the green-red band (520-600 nm) reaching the rods i ...
... large retinal region of ~20 photoreceptors, and concentrated onto a single central cone13. Consequently, a reduced light intensity propagates in the surrounding area, corresponding to the rods' receptive fields. Therefore, the intensity of light in the green-red band (520-600 nm) reaching the rods i ...
Physics - San Diego State University
... invention of the laser in the late 1950s revolutionized the field of optics. These advances stimulated whole new areas in physics applications. Superconductivity has led to the search for a high-temperature superconductor so that electrical power might be transmitted without loss; quantum mechanical ...
... invention of the laser in the late 1950s revolutionized the field of optics. These advances stimulated whole new areas in physics applications. Superconductivity has led to the search for a high-temperature superconductor so that electrical power might be transmitted without loss; quantum mechanical ...
