High Contrast Gratings for Integrated Optoelectronics
... of perfect cancellation. The cancellation is shown to be only in terms of the “DC” Fourier component. The higher Fourier components do not need to be zero, since subwavelength gratings have no diffraction orders other than 0th order. The left plot shows the decomposition of the overall weighted fiel ...
... of perfect cancellation. The cancellation is shown to be only in terms of the “DC” Fourier component. The higher Fourier components do not need to be zero, since subwavelength gratings have no diffraction orders other than 0th order. The left plot shows the decomposition of the overall weighted fiel ...
reflectance measurement and modelling of high reflectivity
... First of all, I would like to thank my thesis supervisor, Professor Stephanie Haywood, for guiding and helping me in the research project and the thesis. Professor Haywood has been given me a lot of guidance as well as very useful ideas to work on the thesis. The interest, enthusiasm and patient tha ...
... First of all, I would like to thank my thesis supervisor, Professor Stephanie Haywood, for guiding and helping me in the research project and the thesis. Professor Haywood has been given me a lot of guidance as well as very useful ideas to work on the thesis. The interest, enthusiasm and patient tha ...
Techreportjul09 - University of Reading
... A survey of the groups in ADIENT was undertaken to ascertain how aerosol properties were used and therefore required within the individual activities. A literature review was then conducted by Reading into the appropriateness of the choices already used, and whether recent work presented alternative ...
... A survey of the groups in ADIENT was undertaken to ascertain how aerosol properties were used and therefore required within the individual activities. A literature review was then conducted by Reading into the appropriateness of the choices already used, and whether recent work presented alternative ...
Optical grating coupler biosensor and biomedical applications Lorena Diéguez Moure
... of the waveguide to determine the desired parameters of the adsorbed layer. As this layer is not only composed by the biomolecules, but also by some amount of the buffer solution, in this study, we have developed a new calibration method to take into account the refractive index buffer changes. We r ...
... of the waveguide to determine the desired parameters of the adsorbed layer. As this layer is not only composed by the biomolecules, but also by some amount of the buffer solution, in this study, we have developed a new calibration method to take into account the refractive index buffer changes. We r ...
Introduction to DWDM Technology
... There is a natural tendency to regard the MAN as simply a scaled-down version of the long-haul network. It is true that networks serving the metropolitan area encompass shorter distances than in the long-haul transport networks. Upon closer examination, however, these differences are superficial com ...
... There is a natural tendency to regard the MAN as simply a scaled-down version of the long-haul network. It is true that networks serving the metropolitan area encompass shorter distances than in the long-haul transport networks. Upon closer examination, however, these differences are superficial com ...
MEASUREMENT AND COMPARISON OF REFRACTIVE INDEX OF
... physical constants that can help with preventing adulteration in liquids as this physical parameter varies with different liquids, solids and impurities (Singh, 2013). Specifically, a recent economic study carried out employs the use of refractive index in the prevention of oil adulteration during t ...
... physical constants that can help with preventing adulteration in liquids as this physical parameter varies with different liquids, solids and impurities (Singh, 2013). Specifically, a recent economic study carried out employs the use of refractive index in the prevention of oil adulteration during t ...
Customer-Made 3×3 Polymer Optical Fiber Splitter Based on Green
... insertion loss. Insertion loss refers to loss caused by the presence of one component in optical fiber. Figure 6 and 7, shows the insertion loss for forward and reverse bias, respectively. The value of this insertion loss has an average around 14-16 dB and it considered larger compared to POF loss w ...
... insertion loss. Insertion loss refers to loss caused by the presence of one component in optical fiber. Figure 6 and 7, shows the insertion loss for forward and reverse bias, respectively. The value of this insertion loss has an average around 14-16 dB and it considered larger compared to POF loss w ...
My PhD - Photonics Research Group
... ik dan zeker iemand zou vergeten. Maar in het bijzonder wil ik Hendrik, Steven en Liesbet bedanken voor het operationeel houden van de meetruimte en de clean room. I would also like to thank the PICCO project partners from Glasgow, St.-Andrews and Copenhagen. Special thanks to Harold for fabricating ...
... ik dan zeker iemand zou vergeten. Maar in het bijzonder wil ik Hendrik, Steven en Liesbet bedanken voor het operationeel houden van de meetruimte en de clean room. I would also like to thank the PICCO project partners from Glasgow, St.-Andrews and Copenhagen. Special thanks to Harold for fabricating ...
Moiré and Fringe Projection Techniques
... dark fringes result (destructive interference). For a plane wave, the “grating” lines are really planes perpendicular to the plane of the figure and the dark and bright fringes are also planes perpendicular to the plane of the figure. If the plane waves are traveling to the right, these fringes woul ...
... dark fringes result (destructive interference). For a plane wave, the “grating” lines are really planes perpendicular to the plane of the figure and the dark and bright fringes are also planes perpendicular to the plane of the figure. If the plane waves are traveling to the right, these fringes woul ...
Infrared fibers
... The second family in Fig. 1 [Figs. 1(d)–1(f)] comprises recently developed hybrid IR fibers where materials from heterogeneous families of materials are combined: chalcogenide glasses with a polymer [Fig. 1(d)], chalcogenide and silica glasses [Fig. 1(e)], and chalcogenide and tellurite glasses [Fi ...
... The second family in Fig. 1 [Figs. 1(d)–1(f)] comprises recently developed hybrid IR fibers where materials from heterogeneous families of materials are combined: chalcogenide glasses with a polymer [Fig. 1(d)], chalcogenide and silica glasses [Fig. 1(e)], and chalcogenide and tellurite glasses [Fi ...
Generation of Repumping Light for Ultracold Strontium Experiments
... smartest people I know. From teaching us that physics jargon can quite cleverly be used in colloquial conversation, to working through specific details of our projects, to teaching us life skills such as how to stand around awkwardly in order to encourage others’ productivity, Dr. Weld has shared wi ...
... smartest people I know. From teaching us that physics jargon can quite cleverly be used in colloquial conversation, to working through specific details of our projects, to teaching us life skills such as how to stand around awkwardly in order to encourage others’ productivity, Dr. Weld has shared wi ...
Light Scattering in Holographic Polymer Dispersed Liquid Crystals
... Figure 18. Total scattering cross sections calculated by the Rayleigh-Gans approximation for various droplet configurations and incident polarizations [13]. Cases in which the incident polarization is aligned with the director for the bipolar and aligned droplet have the highest total cross section. ...
... Figure 18. Total scattering cross sections calculated by the Rayleigh-Gans approximation for various droplet configurations and incident polarizations [13]. Cases in which the incident polarization is aligned with the director for the bipolar and aligned droplet have the highest total cross section. ...
356961: Internet Protocols - ECSE - Rensselaer Polytechnic Institute
... Even in single mode, there are 2 linearly independent solutions for every (to maxwell’s equations) State of polarization (SOP): distribution of light energy between the (two transverse) polarization modes Ex and Ey Polarization Vector: The electric dipole moment per unit volume In perfectly circul ...
... Even in single mode, there are 2 linearly independent solutions for every (to maxwell’s equations) State of polarization (SOP): distribution of light energy between the (two transverse) polarization modes Ex and Ey Polarization Vector: The electric dipole moment per unit volume In perfectly circul ...
Diffraction Grating Handbook
... fifty-three apertures.2 Apparently he developed this prototype no further, and there is no evidence that he tried to use it for serious scientific experiments. In 1821, most likely unaware of the earlier American report, Joseph von Fraunhofer began his work on diffraction gratings.3 His research was ...
... fifty-three apertures.2 Apparently he developed this prototype no further, and there is no evidence that he tried to use it for serious scientific experiments. In 1821, most likely unaware of the earlier American report, Joseph von Fraunhofer began his work on diffraction gratings.3 His research was ...
Quasi Phase Matching Devices for Optical
... Quasi phase matching (QPM) is a method for achieving efficient energy transfer between interacting waves in a nonlinear process. It is most efficient and practical form of this technique is based on a spatial modulation of the nonlinear properties along the interaction path in the material. Such a s ...
... Quasi phase matching (QPM) is a method for achieving efficient energy transfer between interacting waves in a nonlinear process. It is most efficient and practical form of this technique is based on a spatial modulation of the nonlinear properties along the interaction path in the material. Such a s ...
Fiber optic sensor network for the monitoring of civil
... The security of civil engineering works demands a periodical monitoring of the structures. The current methods (such as triangulation, water levels, vibrating strings or mechanical extensometers) are often of tedious application and require the intervention of specialized operators. The resulting co ...
... The security of civil engineering works demands a periodical monitoring of the structures. The current methods (such as triangulation, water levels, vibrating strings or mechanical extensometers) are often of tedious application and require the intervention of specialized operators. The resulting co ...
All-optical signal processing based on self
... light in order to prevent or mitigate some of these impairments. The most common and commercially available way is to implement an opto-electronic polarization tracking solution [26-30]. These devices generally consist in linear polarization transformations followed by partial diagnostic associated ...
... light in order to prevent or mitigate some of these impairments. The most common and commercially available way is to implement an opto-electronic polarization tracking solution [26-30]. These devices generally consist in linear polarization transformations followed by partial diagnostic associated ...
Diffraction Grating Handbook
... particular, the control of groove shape (or blazing) has increased spectral efficiency dramatically. In addition, interferometric and servo control systems have made it possible to break through the accuracy barrier previously set by the mechanical constraints inherent in the ruling engines. During ...
... particular, the control of groove shape (or blazing) has increased spectral efficiency dramatically. In addition, interferometric and servo control systems have made it possible to break through the accuracy barrier previously set by the mechanical constraints inherent in the ruling engines. During ...
DESIGN AND FABRICATION OF GUIDED
... division multiplexed (WDM) related applications. In display applications TOFs have been being used as color filters (CF) to separate primary colors from incident white light. In this study, two types of TOFs have been designed and fabricated: 1) thermo-optic tunable optical filters (TOTOF) working i ...
... division multiplexed (WDM) related applications. In display applications TOFs have been being used as color filters (CF) to separate primary colors from incident white light. In this study, two types of TOFs have been designed and fabricated: 1) thermo-optic tunable optical filters (TOTOF) working i ...
Design and use of guided mode resonance filters for
... narrow wavelength interval of incident broad band light. They combine a diffractive element with a waveguiding element, and it is the coupling between diffracted light and quasi guided modes that gives rise to the resonant response. The linewidth of the resonance can be tuned by the material and geo ...
... narrow wavelength interval of incident broad band light. They combine a diffractive element with a waveguiding element, and it is the coupling between diffracted light and quasi guided modes that gives rise to the resonant response. The linewidth of the resonance can be tuned by the material and geo ...
Open the publication - UEF Electronic Publications
... Optical properties of structured media are controlled by the local electric and magnetic fields to a great extent. Nanostructuring allows one to customize the macroscopic linear and nonlinear optical properties of these artificial media by engineering the local fields precisely. In this thesis, loca ...
... Optical properties of structured media are controlled by the local electric and magnetic fields to a great extent. Nanostructuring allows one to customize the macroscopic linear and nonlinear optical properties of these artificial media by engineering the local fields precisely. In this thesis, loca ...
Untitled
... effective way. Both continuous and quasi-distributed sensors are discussed. The continuous type of distributed sensor is based on the intrinsic effect existing in optic fibers (such as Rayleigh scattering). The most widely used type is optical time domain reflectrometry (OTDR), which has become an indis ...
... effective way. Both continuous and quasi-distributed sensors are discussed. The continuous type of distributed sensor is based on the intrinsic effect existing in optic fibers (such as Rayleigh scattering). The most widely used type is optical time domain reflectrometry (OTDR), which has become an indis ...
Fabrication of functional surfaces using ultrashort laser pulse ablation
... with replication methods. It is well known that sufficiently small surface structures reflect and deflect light in a way that can not be handled with geometrical optics. Naturally, when considering materials like metals, only reflected waves are observed. If the periodicity of the structures is in t ...
... with replication methods. It is well known that sufficiently small surface structures reflect and deflect light in a way that can not be handled with geometrical optics. Naturally, when considering materials like metals, only reflected waves are observed. If the periodicity of the structures is in t ...
DESIGN, FABRICATION AND CHARACTERIZATION OF GUIDED
... techniques, the structural and optical properties of the films are determined. An order-ofmagnitude reduction of the extinction coefficient is achieved. We show that the optical constants can be tuned for different design requirements by controlling the process parameters. For example, we obtain a r ...
... techniques, the structural and optical properties of the films are determined. An order-ofmagnitude reduction of the extinction coefficient is achieved. We show that the optical constants can be tuned for different design requirements by controlling the process parameters. For example, we obtain a r ...
Optimally designed narrowband guided
... Since the introduction of narrowband reflectance filters using subwavelength periodic grating nanostructures [1–3], guided-mode resonance (GMR) filters (as they have come to be called, but also known as photonic crystal slabs or photonic crystal surfaces) have found application in label-free biodete ...
... Since the introduction of narrowband reflectance filters using subwavelength periodic grating nanostructures [1–3], guided-mode resonance (GMR) filters (as they have come to be called, but also known as photonic crystal slabs or photonic crystal surfaces) have found application in label-free biodete ...
Fiber Bragg grating
A fiber Bragg grating (FBG) is a type of distributed Bragg reflector constructed in a short segment of optical fiber that reflects particular wavelengths of light and transmits all others. This is achieved by creating a periodic variation in the refractive index of the fiber core, which generates a wavelength-specific dielectric mirror. A fiber Bragg grating can therefore be used as an inline optical filter to block certain wavelengths, or as a wavelength-specific reflector.