Excitation of a one-dimensional evanescent wave by conical edge
... The method separates the homogeneous areas (semi-infinite substrate and superstrate) from the modulated area (Au grating) where the fields are written in a Fourier expansion. The field in the superstrate (air) and the substrate (glass) can be expressed as a sum of plane waves (Rayleigh formalism). T ...
... The method separates the homogeneous areas (semi-infinite substrate and superstrate) from the modulated area (Au grating) where the fields are written in a Fourier expansion. The field in the superstrate (air) and the substrate (glass) can be expressed as a sum of plane waves (Rayleigh formalism). T ...
ariel digitize program
... Initially, the video image is captured and stored in memory. This eliminates any further need for video apparatus. The image sequence is then retrieved from computer memory and displayed, one image at a time, on the digitizing monitor. The captured image can be enhanced or altered in several ways. T ...
... Initially, the video image is captured and stored in memory. This eliminates any further need for video apparatus. The image sequence is then retrieved from computer memory and displayed, one image at a time, on the digitizing monitor. The captured image can be enhanced or altered in several ways. T ...
Photoinduced handedness switching in terahertz chiral metamolecules ARTICLE
... be reconfigured in real-time. The concept of stereochemistry has been recently introduced to metamaterials; the change in the spatial configuration in metamolecules induces dramatic change in their optical properties17,18. A straight translation of chirality switching from organic molecules to metam ...
... be reconfigured in real-time. The concept of stereochemistry has been recently introduced to metamaterials; the change in the spatial configuration in metamolecules induces dramatic change in their optical properties17,18. A straight translation of chirality switching from organic molecules to metam ...
- City Research Online
... index for the quasi-TM mode with the bending radius is shown in Fig.2. In this region, two distinct modes can easily be identified (their field profiles are shown later on). The solid line represents the first, Hx1 eigenmode, with a higher effective index and that of the second eigenmode, Hx2, show ...
... index for the quasi-TM mode with the bending radius is shown in Fig.2. In this region, two distinct modes can easily be identified (their field profiles are shown later on). The solid line represents the first, Hx1 eigenmode, with a higher effective index and that of the second eigenmode, Hx2, show ...
Measuring the complex orbital angular momentum spectrum of light
... into several individual parts, while each part produces one single OAM state with a preset phase shift. It could be found that intensity patterns in Figs. 3(a) and 3(b) have similar shapes, but different azimuthal directions, according to the phase shift. With our proposed method, the corresponding ...
... into several individual parts, while each part produces one single OAM state with a preset phase shift. It could be found that intensity patterns in Figs. 3(a) and 3(b) have similar shapes, but different azimuthal directions, according to the phase shift. With our proposed method, the corresponding ...
T - International Journal of Electronics and Telecommunications
... in the past. Nowadays, THz frequency regime has become an emerging field of research for its potential applications such as biomedical sensing [2], spectroscopy [3], astronomy [4], monitoring drugs [5], explosives or weapons in a nondestructive manner [6], non-invasive imaging [7], hybridization of ...
... in the past. Nowadays, THz frequency regime has become an emerging field of research for its potential applications such as biomedical sensing [2], spectroscopy [3], astronomy [4], monitoring drugs [5], explosives or weapons in a nondestructive manner [6], non-invasive imaging [7], hybridization of ...
The orbital angular momentum of light: Genesis and
... transverse components of the total angular momentum turn out to be zero. The existence of a nonzero longitudinal component of the total angular momentum is related to a nonvanishing longitudinal component of the electric field, arising from the gradient of the transverse amplitude modulation. This an ...
... transverse components of the total angular momentum turn out to be zero. The existence of a nonzero longitudinal component of the total angular momentum is related to a nonvanishing longitudinal component of the electric field, arising from the gradient of the transverse amplitude modulation. This an ...
Mathematical models and numerical methods for high frequency
... The main drawbacks of the infinite frequency approximation of geometrical optics are that diffraction effects at boundaries are lost, and that the approximation breaks down at caustics, where the predicted amplitude A is unbounded. For these situations more detailed models are needed, such as the ge ...
... The main drawbacks of the infinite frequency approximation of geometrical optics are that diffraction effects at boundaries are lost, and that the approximation breaks down at caustics, where the predicted amplitude A is unbounded. For these situations more detailed models are needed, such as the ge ...
LUMINOSITY ENHANCEMENT BY A SELF
... that nb N 2ip is needed to produce linear focusing over most of the bunch[6]. In the underdense plasma regime, the focusing strength K is determined ...
... that nb N 2ip is needed to produce linear focusing over most of the bunch[6]. In the underdense plasma regime, the focusing strength K is determined ...
An Optical Fiber Lateral Displacement Measurement Method and
... sensors (FOS) have attracted much attention of researchers over the past few decades due to some innovative characteristics, such as high bandwidth, low loss, and can work under harsh environmental conditions compared to traditional sensors [11]. Fiber optic displacement sensors (FODS) are playing a ...
... sensors (FOS) have attracted much attention of researchers over the past few decades due to some innovative characteristics, such as high bandwidth, low loss, and can work under harsh environmental conditions compared to traditional sensors [11]. Fiber optic displacement sensors (FODS) are playing a ...
The Nonlinear Optical Susceptibility
... beam at frequency ω is converted to radiation at the second-harmonic frequency 2ω. One common use of second-harmonic generation is to convert the output of a fixed-frequency laser to a different spectral region. For example, the Nd:YAG laser operates in the near infrared at a wavelength of 1.06 μm. ...
... beam at frequency ω is converted to radiation at the second-harmonic frequency 2ω. One common use of second-harmonic generation is to convert the output of a fixed-frequency laser to a different spectral region. For example, the Nd:YAG laser operates in the near infrared at a wavelength of 1.06 μm. ...
Variable Incidence Angle Fluorescence Interference Contrast
... is quoted as ,0.1 nm; however, repeated measurements of the same SiO2 step on the same chip yielded variations in thickness of as much as 1 nm, possibly indicative of some variation in thickness arising from the etch process. The SiO2 thickness determined by ellipsometry is therefore reported to 1 n ...
... is quoted as ,0.1 nm; however, repeated measurements of the same SiO2 step on the same chip yielded variations in thickness of as much as 1 nm, possibly indicative of some variation in thickness arising from the etch process. The SiO2 thickness determined by ellipsometry is therefore reported to 1 n ...
Non-Magneto-Optic Waveguide Isolator Namkhun Srisanit , Non-member
... isolator device with a single mode input, a multimode bent waveguide mode conversion section, and a single mode output as shown in Figure 6. The input single mode laser beam is launched to the single mode isolator input channel. Through a taper, the single mode beam is coupled to the multimode bent ...
... isolator device with a single mode input, a multimode bent waveguide mode conversion section, and a single mode output as shown in Figure 6. The input single mode laser beam is launched to the single mode isolator input channel. Through a taper, the single mode beam is coupled to the multimode bent ...
aa f - Freie Universität Berlin
... scientific working methods and critical quantitative thinking. This includes setting-up and conducting an experiment (measurement techniques and methods), documentation, evaluation (error calculations), discussion of the findings and scientific conclusions and finally presentation of the written rep ...
... scientific working methods and critical quantitative thinking. This includes setting-up and conducting an experiment (measurement techniques and methods), documentation, evaluation (error calculations), discussion of the findings and scientific conclusions and finally presentation of the written rep ...
A very convenient setup to generate intense VUV coherent light at
... of dominant saturation processes, which are interesting to follow. While a two-photon absorption could limit the first line production efficiency, the detuning from the resonance would change the nature of saturation and its onset. Here modification of the refractive index of nonlinear medium by the i ...
... of dominant saturation processes, which are interesting to follow. While a two-photon absorption could limit the first line production efficiency, the detuning from the resonance would change the nature of saturation and its onset. Here modification of the refractive index of nonlinear medium by the i ...
Wave optical simulations of x-ray nano
... The primordinal object of this thesis was to obtain an analytical and numerical description of focusing multilayer (ML) mirrors, that are mainly used at the European Synchrotron Radiation Facility (ESRF) in Grenoble, France. ML mirrors provide high quality x-ray beams for investigation on a large va ...
... The primordinal object of this thesis was to obtain an analytical and numerical description of focusing multilayer (ML) mirrors, that are mainly used at the European Synchrotron Radiation Facility (ESRF) in Grenoble, France. ML mirrors provide high quality x-ray beams for investigation on a large va ...
Femtosecond pulse propagation in silicon waveguides: Variational
... acting as a clad. The high values of the Kerr coefficient (nearly 100 times larger than that of silica glass) and Raman gain coefficient (nearly 1000 times larger than that of silica glass) lead to efficient nonlinear interaction with optical fields at relatively low power levels [3,4]. For this reason, ...
... acting as a clad. The high values of the Kerr coefficient (nearly 100 times larger than that of silica glass) and Raman gain coefficient (nearly 1000 times larger than that of silica glass) lead to efficient nonlinear interaction with optical fields at relatively low power levels [3,4]. For this reason, ...
Guided photoluminescence study of Nd
... emission [1-13]. Erbium is one of the most studied ions in different matrices these last years because of its leading position in telecommunication applications. This is why numerous works have been carried out on Si-based waveguides doped with Er3+ ions [1, 2 and 5] but up to now, there is only few ...
... emission [1-13]. Erbium is one of the most studied ions in different matrices these last years because of its leading position in telecommunication applications. This is why numerous works have been carried out on Si-based waveguides doped with Er3+ ions [1, 2 and 5] but up to now, there is only few ...
AS Teacher Handbook
... The AS will be awarded for the first time in Summer 2016, using grades A – E. The qualification provides a broad, coherent, satisfying and worthwhile course of study. It encourages learners to develop confidence in, and a positive attitude towards, physics and to recognise its importance in their ow ...
... The AS will be awarded for the first time in Summer 2016, using grades A – E. The qualification provides a broad, coherent, satisfying and worthwhile course of study. It encourages learners to develop confidence in, and a positive attitude towards, physics and to recognise its importance in their ow ...
Strongly interacting systems in AMO physics
... Strong interactions can dramatically change the essence of a physical system. The behavior of strongly interacting systems can be fundamentally different than those where the interaction is absent or treated perturbatively. Many examples are known in solid-state physics including the superconductivit ...
... Strong interactions can dramatically change the essence of a physical system. The behavior of strongly interacting systems can be fundamentally different than those where the interaction is absent or treated perturbatively. Many examples are known in solid-state physics including the superconductivit ...
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 ...