Introduction to THz Wave Photonics
... and technology. This band occupies a large portion of the electromagnetic spectrum between the infrared and microwave bands. Basic research, new initiatives, and developments in advanced sensing and imaging technology with regard to the THz band remain unexplored compared to the relatively well-deve ...
... and technology. This band occupies a large portion of the electromagnetic spectrum between the infrared and microwave bands. Basic research, new initiatives, and developments in advanced sensing and imaging technology with regard to the THz band remain unexplored compared to the relatively well-deve ...
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... Mordechai Segev; Technion - Israel Inst. of Technology, Israel. We study nonlinear dynamics of electromagnetic waves in honeycomb photonic lattices, and find that nonlinearity breaks the effective Dirac equation. Furthermore, we show that the nonlinearity cannot be described simply by the ...
... Mordechai Segev; Technion - Israel Inst. of Technology, Israel. We study nonlinear dynamics of electromagnetic waves in honeycomb photonic lattices, and find that nonlinearity breaks the effective Dirac equation. Furthermore, we show that the nonlinearity cannot be described simply by the ...
High Contrast Gratings for Integrated Optoelectronics
... reflectivity and field intensity profile. (a) Comparison of HCG reflectivity spectrum calculated by analytical solution (red) and RCWA (blue). (b) Comparison of HCG field intensity profile (|Ey|2) calculated by analytical solution and FDTD. The white boxes indicate the HCG bars. .................... ...
... reflectivity and field intensity profile. (a) Comparison of HCG reflectivity spectrum calculated by analytical solution (red) and RCWA (blue). (b) Comparison of HCG field intensity profile (|Ey|2) calculated by analytical solution and FDTD. The white boxes indicate the HCG bars. .................... ...
chapter 4 starfish - Grupo de Óptica
... This thesis is devoted to the development of a technique for the measurement of the spatiotemporal amplitude and phase of ultrashort laser pulses and its applications. The core of the thesis is divided into three parts, which correspond to the presentation of the technique (Part I), its applications ...
... This thesis is devoted to the development of a technique for the measurement of the spatiotemporal amplitude and phase of ultrashort laser pulses and its applications. The core of the thesis is divided into three parts, which correspond to the presentation of the technique (Part I), its applications ...
Nano-optics of surface plasmon polaritons
... in three dimensions [17]. Very recently a new class of two-dimensional photonic crystals based on surface plasmon polaritonic band-gap structures has been created on a metal surface [21–26]. In this article we present an overview of the theory of the behavior of SPP on structured surfaces, and of re ...
... in three dimensions [17]. Very recently a new class of two-dimensional photonic crystals based on surface plasmon polaritonic band-gap structures has been created on a metal surface [21–26]. In this article we present an overview of the theory of the behavior of SPP on structured surfaces, and of re ...
Untitled
... features of fiber optic sensors is the distributed sensing capability, which means that multiple points can be sensed simultaneously by a single fiber. This capability not only reduces the cost but also makes the sensor very compact. Thus, many important applications such as structure fatigue monitori ...
... features of fiber optic sensors is the distributed sensing capability, which means that multiple points can be sensed simultaneously by a single fiber. This capability not only reduces the cost but also makes the sensor very compact. Thus, many important applications such as structure fatigue monitori ...
Investigating Naturally Occurring 3
... techniques and they were found to diffusely scatter light and aid iridescence suppression. In addition to this, theoretical modelling was performed on a variety of gyroid geometries. The gyroid photonic structure found in the wing scales of P. sesostris was determined to be highly optimised to refle ...
... techniques and they were found to diffusely scatter light and aid iridescence suppression. In addition to this, theoretical modelling was performed on a variety of gyroid geometries. The gyroid photonic structure found in the wing scales of P. sesostris was determined to be highly optimised to refle ...
Full-Text PDF
... 658 nm, the Cr/Au and Ti/Au films exhibit low-sensitivity with large full width at half maximum (FWHM) values of approximately 3°[9–11]. However, these conventional SPR sensors (Cr/Au) can cause problems in the adhesion layer, such as metal interdiffusion, low optical transmission, large FWHM, and a ...
... 658 nm, the Cr/Au and Ti/Au films exhibit low-sensitivity with large full width at half maximum (FWHM) values of approximately 3°[9–11]. However, these conventional SPR sensors (Cr/Au) can cause problems in the adhesion layer, such as metal interdiffusion, low optical transmission, large FWHM, and a ...
universitas indonesia characterization and design of gallium nitride
... Fabry-Perot interferometric configuration. The film is sandwich between two Au electrodes ................................................................. The simple q-2q goniometric setup schematically ............................. Reflectivities calculated from a measured values at different angl ...
... Fabry-Perot interferometric configuration. The film is sandwich between two Au electrodes ................................................................. The simple q-2q goniometric setup schematically ............................. Reflectivities calculated from a measured values at different angl ...
Optical grating coupler biosensor and biomedical applications Lorena Diéguez Moure
... through different approaches. Low cost sensors in polymer substrates were investigated, as well as novel coatings for commercial sensors with different sputtered and evaporated materials. These new sensors will allow quick quantitative studies of the adsorption of biomolecules onto their surfaces, t ...
... through different approaches. Low cost sensors in polymer substrates were investigated, as well as novel coatings for commercial sensors with different sputtered and evaporated materials. These new sensors will allow quick quantitative studies of the adsorption of biomolecules onto their surfaces, t ...
Nd:YAG Based Laser Sources for Targeting
... incorporating a deformable bimorph mirror. A new concept for a targeting laser source, which incorporated an eye-safe wavelength, was demonstrated using a common resonator intracavity OPO design. A conversion efficiency of 40% was achieved for 36 mJ output of 1573 nm eye-safe light from a 90 mJ lase ...
... incorporating a deformable bimorph mirror. A new concept for a targeting laser source, which incorporated an eye-safe wavelength, was demonstrated using a common resonator intracavity OPO design. A conversion efficiency of 40% was achieved for 36 mJ output of 1573 nm eye-safe light from a 90 mJ lase ...
Leica TCS SP8 STED 3X-Brochure EN
... The powerful Huygens STED deconvolution package, exclusively supplied with every TCS SP8 STED 3X system, helps to improve your data. Huygens decreases noise levels dramatically and also enhances resolution in x, y and z. After deconvolution of STED data, even smaller details are resolved in all dime ...
... The powerful Huygens STED deconvolution package, exclusively supplied with every TCS SP8 STED 3X system, helps to improve your data. Huygens decreases noise levels dramatically and also enhances resolution in x, y and z. After deconvolution of STED data, even smaller details are resolved in all dime ...
Modern Analytical Chemistry
... An additional problem is encountered when the isolated solid is nonstoichiometric. For example, precipitating Mn2+ as Mn(OH)2, followed by heating to produce the oxide, frequently produces a solid with a stoichiometry of MnOx , where x varies between 1 and 2. In this case the nonstoichiometric produ ...
... An additional problem is encountered when the isolated solid is nonstoichiometric. For example, precipitating Mn2+ as Mn(OH)2, followed by heating to produce the oxide, frequently produces a solid with a stoichiometry of MnOx , where x varies between 1 and 2. In this case the nonstoichiometric produ ...
Study on Alginate–Chitosan Complex Formed with Different
... and stability [4]. The pH of pure sodium alginate and chitosan solutions was 6.40 and 3.84, respectively. The dissociation constant of chitosan is 6.5–6.6 and the pKa-values of mannuronic and guluronic acid monomers of alginate were found to be 3.38 and 3.65, respectively [21]. A polyelectrolyte com ...
... and stability [4]. The pH of pure sodium alginate and chitosan solutions was 6.40 and 3.84, respectively. The dissociation constant of chitosan is 6.5–6.6 and the pKa-values of mannuronic and guluronic acid monomers of alginate were found to be 3.38 and 3.65, respectively [21]. A polyelectrolyte com ...
Principles of Fiber Optic Communication
... radio/microwaves to another telephone exchange) usually with several repeaters in between. From the local area telephone exchange, at the receiving end, these signals travel via metallic wire pairs to the receiver telephone, where they are converted back into corresponding sound waves. Through such ...
... radio/microwaves to another telephone exchange) usually with several repeaters in between. From the local area telephone exchange, at the receiving end, these signals travel via metallic wire pairs to the receiver telephone, where they are converted back into corresponding sound waves. Through such ...
Final report
... Figure 9: Structure of (a) standard optical fibre (b) silk fibre....................................................... 22 Figure 10: Scanning electron microscope (SEM) image of a collected silk dragline ................... 23 Figure 11: Optical coupling between two co-propagating waveguides. ...... ...
... Figure 9: Structure of (a) standard optical fibre (b) silk fibre....................................................... 22 Figure 10: Scanning electron microscope (SEM) image of a collected silk dragline ................... 23 Figure 11: Optical coupling between two co-propagating waveguides. ...... ...
Laser Sources for Confocal Microscopy
... photons absorbed = ( flux per pixel) ¥ (OD) = 2 ¥ 105 ( s * pixel * mW ) at 500 nm. Assuming a quantum yield of 0.8 and a collection efficiency of 10%, the detector receives photons at the detector = 1.6 ¥ 10 4 (s * pixel * mW of incident light). Given the quantum efficiency for a good detector (10% ...
... photons absorbed = ( flux per pixel) ¥ (OD) = 2 ¥ 105 ( s * pixel * mW ) at 500 nm. Assuming a quantum yield of 0.8 and a collection efficiency of 10%, the detector receives photons at the detector = 1.6 ¥ 10 4 (s * pixel * mW of incident light). Given the quantum efficiency for a good detector (10% ...
SPECTROSCOPIC STUDIES OF SYNTHETIC AND
... Sometimes a boundary between the colored parts of a single ringwoodite crystal is very distinct, but in most grains the color changes gradually displaying an irregular spotted distribution. Several ringwoodite grains appropriate in size, coloration and quality for optical and FTIR spectroscopy were ...
... Sometimes a boundary between the colored parts of a single ringwoodite crystal is very distinct, but in most grains the color changes gradually displaying an irregular spotted distribution. Several ringwoodite grains appropriate in size, coloration and quality for optical and FTIR spectroscopy were ...
Studies of Nonlinear Femtosecond Pulse Propagation in Bulk
... shorter pulses, however, can lead to nonlinear propagation effects and increased temporal spreading or pulse deformation during transmission. Temporal spreading limits the density of pulses that can be sent down a transmission line. It also lowers the peak intensity of the pulses such that, over a l ...
... shorter pulses, however, can lead to nonlinear propagation effects and increased temporal spreading or pulse deformation during transmission. Temporal spreading limits the density of pulses that can be sent down a transmission line. It also lowers the peak intensity of the pulses such that, over a l ...
Development of Optical Sensor Platforms based on - DORAS
... Integrated optics is a relatively new technology that is concerned with the fabrication of miniature optical components that can perform a variety of optical functions ’ . Integrated optic components such as planar waveguides, grating couplers and diffractive optic elements may all be used to redire ...
... Integrated optics is a relatively new technology that is concerned with the fabrication of miniature optical components that can perform a variety of optical functions ’ . Integrated optic components such as planar waveguides, grating couplers and diffractive optic elements may all be used to redire ...
Design and Analysis of Integrated Optical Waveguide Structures and
... waveguide butt-coupled Si-based LEDs were performed with a generated setup. As a result, free-edge overlapping MM waveguides show propagation loss coefficients of α ~ 65 dB/cm in the range of the telecommunication wavelength. The high surface roughness parameters (~ 150 nm) and the modal dispersion ...
... waveguide butt-coupled Si-based LEDs were performed with a generated setup. As a result, free-edge overlapping MM waveguides show propagation loss coefficients of α ~ 65 dB/cm in the range of the telecommunication wavelength. The high surface roughness parameters (~ 150 nm) and the modal dispersion ...
Laser Sources for Confocal Microscopy
... Given the quantum efficiency for a good detector (10% at 500 nm), the final detected photon flux should be about flux detected = 1600 photons (s * pixel * mW of light). This flux should be compared with the dark noise of most detectors, which can vary between 10 and 100 equivalent photons/(s * pixel ...
... Given the quantum efficiency for a good detector (10% at 500 nm), the final detected photon flux should be about flux detected = 1600 photons (s * pixel * mW of light). This flux should be compared with the dark noise of most detectors, which can vary between 10 and 100 equivalent photons/(s * pixel ...
Waveguide lasers in ytterbium doped tantalum pentoxide for
... low-cost planar devices with many interlocking photonic circuits for multi-functionality. Numerical modelling of symmetrical rib waveguide in Ta2O5 was carried out finding an optimum waveguide design for a near-circular mode profile with maximum confinement of light within the core with various etch ...
... low-cost planar devices with many interlocking photonic circuits for multi-functionality. Numerical modelling of symmetrical rib waveguide in Ta2O5 was carried out finding an optimum waveguide design for a near-circular mode profile with maximum confinement of light within the core with various etch ...
Manipulating Bose-Einstein condensates with laser light Shin Inouye
... The quantum nature of matter shows up when the number of particles becomes comparable to the number of accessible states in the system. Fermions start to show the effect of the Pauli-exclusion principle when the occupation numbers become on the order of unity. Lasers start lasing when the average num ...
... The quantum nature of matter shows up when the number of particles becomes comparable to the number of accessible states in the system. Fermions start to show the effect of the Pauli-exclusion principle when the occupation numbers become on the order of unity. Lasers start lasing when the average num ...
applications of optical cavities in modern atomic, molecular
... achieved when the technical noise is minimized by a differential measurement. For a true differential measurement, quick comparisons of on-resonance and off-resonance information are required; that is, some sort of modulation technique should be employed. When combined with an effective modulation t ...
... achieved when the technical noise is minimized by a differential measurement. For a true differential measurement, quick comparisons of on-resonance and off-resonance information are required; that is, some sort of modulation technique should be employed. When combined with an effective modulation t ...