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SPDM: light microscopy with single
... laser scanning 4Pi microscopy [5–9] has become an established ‘nanoscopy’ method, allowing an axial optical resolution down to the 100-nm range. Compared to the results of conventional fluorescence microscopy methods, this resolution is 5–7 times better. In many imaging applications, the structural ...
... laser scanning 4Pi microscopy [5–9] has become an established ‘nanoscopy’ method, allowing an axial optical resolution down to the 100-nm range. Compared to the results of conventional fluorescence microscopy methods, this resolution is 5–7 times better. In many imaging applications, the structural ...
The creation and annihilation of optical vortices using cascade
... convert SAM to OAM. This has the advantage that the SAM is readily tunable using standard optical components that manipulate the polarisation. Recent publications on the conversion of SAM into OAM using q-plates show the interest in such polarisation controlled devices in the fields of quantum optic ...
... convert SAM to OAM. This has the advantage that the SAM is readily tunable using standard optical components that manipulate the polarisation. Recent publications on the conversion of SAM into OAM using q-plates show the interest in such polarisation controlled devices in the fields of quantum optic ...
Aalborg Universitet
... (Supplementary Fig. S2) similar to that observed for V-grooves25,26. It should be noted that these oscillations are pronounced only for relatively long wavelengths ( > 550 nm), because, even though SP modes (and thereby GSPs) propagating along gold-air interfaces do exist for shorter wavelengths (bu ...
... (Supplementary Fig. S2) similar to that observed for V-grooves25,26. It should be noted that these oscillations are pronounced only for relatively long wavelengths ( > 550 nm), because, even though SP modes (and thereby GSPs) propagating along gold-air interfaces do exist for shorter wavelengths (bu ...
Acoustic spectra characteristics of atmospheric pressure plasma
... course, the processing of the frequency-independency of output signal is possible by the electric circuit or computer software if necessary. ...
... course, the processing of the frequency-independency of output signal is possible by the electric circuit or computer software if necessary. ...
PCF Based Sensor with High Sensitivity, High
... PCFs have contributed to further development of these structures in various applications in the fields of optical communications [7], nonlinear optics [8], high power technology [13] and sensing [1–5]. The availability of low loss optical fibers with the associated benefits of small size, low cost, ...
... PCFs have contributed to further development of these structures in various applications in the fields of optical communications [7], nonlinear optics [8], high power technology [13] and sensing [1–5]. The availability of low loss optical fibers with the associated benefits of small size, low cost, ...
Tuning of resonance-spacing in a traveling-wave
... quality factor (Q) and compact resonators for different applications, such as, signal processing, sensing, and nonlinear optics has been an important and active area of research in this field [2–4]. Moreover, the possibility of low-power and low-loss tuning of resonance properties of such resonators ...
... quality factor (Q) and compact resonators for different applications, such as, signal processing, sensing, and nonlinear optics has been an important and active area of research in this field [2–4]. Moreover, the possibility of low-power and low-loss tuning of resonance properties of such resonators ...
Various Indoor OFDM Optical Wireless Communication Systems and
... optical wireless communication systems in the presence of LED clipping distortions is analysed. The Orthogonal frequency division multiplexing (OFDM) is used in many wired and wireless broadband communication systems because of its resilience in the presence of signal dispersion or multipath distort ...
... optical wireless communication systems in the presence of LED clipping distortions is analysed. The Orthogonal frequency division multiplexing (OFDM) is used in many wired and wireless broadband communication systems because of its resilience in the presence of signal dispersion or multipath distort ...
K.C. Neuman and S.M. Block, "Optical Trapping"
... cross section can be calculated for the object. For most conventional situations, the scattering force dominates. However, if there is a steep intensity gradient (i.e., near the focus of a laser), the second component of the optical force, the gradient force, must be considered. The gradient force, ...
... cross section can be calculated for the object. For most conventional situations, the scattering force dominates. However, if there is a steep intensity gradient (i.e., near the focus of a laser), the second component of the optical force, the gradient force, must be considered. The gradient force, ...
soliton - Széchenyi István Egyetem
... History of solitons 1970s A. Hasegawa proposed solitons in optical fibers 1980 Mollenauer demonstrated soliton transmission in optical fiber (10 ps, 1.5 mm, ...
... History of solitons 1970s A. Hasegawa proposed solitons in optical fibers 1980 Mollenauer demonstrated soliton transmission in optical fiber (10 ps, 1.5 mm, ...
JMG_Paper2_GainingSuperpowersThroughMetamaterials
... result of the grain of pollen interacting with the water molecules (Nott 43). To me, this research is the precursor to the modern efforts to use a nanoparticle as a synthetic molecule within the host substance in order to develop a useful metamaterial. Interestingly, in a recent patent application f ...
... result of the grain of pollen interacting with the water molecules (Nott 43). To me, this research is the precursor to the modern efforts to use a nanoparticle as a synthetic molecule within the host substance in order to develop a useful metamaterial. Interestingly, in a recent patent application f ...
Long-distance vision
... 24 spans of 125km was achieved for a total reach of 3,000km. This represented an improvement of around 35 per cent compared to operation with conventional singlemode fibre. Since then, a live demonstration at OFC 2014 showed just how far a span can be extended when using all the benefits of low atte ...
... 24 spans of 125km was achieved for a total reach of 3,000km. This represented an improvement of around 35 per cent compared to operation with conventional singlemode fibre. Since then, a live demonstration at OFC 2014 showed just how far a span can be extended when using all the benefits of low atte ...
External Cavity Mode-locked Semiconductor Lasers For
... Figure 1.3: Photonically-sampled analog-to-digital converter. The mode-locked pulse-train acts as the sampling gate in the ADC setup. .......................................................................................... 6 Figure 1.4: Mode-locking through loss modulation. (a) Fundamentally and ( ...
... Figure 1.3: Photonically-sampled analog-to-digital converter. The mode-locked pulse-train acts as the sampling gate in the ADC setup. .......................................................................................... 6 Figure 1.4: Mode-locking through loss modulation. (a) Fundamentally and ( ...
PDF
... X-ray fluorescence analysis (XRF) is a widely applied routine method for inorganic analysis of a variety of materials; compact ED-XRF equipment with microscopic analysis capabilities (µ-XRF) is available in different forms. Raman Spectroscopy (RS) is a highly specific method of molecular analysis tha ...
... X-ray fluorescence analysis (XRF) is a widely applied routine method for inorganic analysis of a variety of materials; compact ED-XRF equipment with microscopic analysis capabilities (µ-XRF) is available in different forms. Raman Spectroscopy (RS) is a highly specific method of molecular analysis tha ...
Superluminal and Slow Light Propagation in a Room
... However, all of these techniques for producing both fast and slow light require complicated experimental configurations and/or low temperatures. In contrast to these techniques, we recently used a different quantum effect—coherent population oscillations—to produce a group velocity of 58 m/s at room ...
... However, all of these techniques for producing both fast and slow light require complicated experimental configurations and/or low temperatures. In contrast to these techniques, we recently used a different quantum effect—coherent population oscillations—to produce a group velocity of 58 m/s at room ...
Optical microscope - Frank`s Hospital Workshop
... lenses to bring the image to focus for the eye. The eyepiece is inserted into the top end of the body tube. Eyepieces are interchangeable and many different eyepieces can be inserted with different degrees of magnification. Typical magnification values for eyepieces include 5x, 10x and 2x. In some h ...
... lenses to bring the image to focus for the eye. The eyepiece is inserted into the top end of the body tube. Eyepieces are interchangeable and many different eyepieces can be inserted with different degrees of magnification. Typical magnification values for eyepieces include 5x, 10x and 2x. In some h ...
Resonant Total Internal Reflection Quasi
... Semiconductors of the technological mainstream are excellent candidates for optical parametric conversion in the mid-infrared region. They, indeed offer a number of advantages such as (1) are transparent in the near- and mid infrared regions, (2) possess high nonlinear second-order coefficients Ȥ(2) ...
... Semiconductors of the technological mainstream are excellent candidates for optical parametric conversion in the mid-infrared region. They, indeed offer a number of advantages such as (1) are transparent in the near- and mid infrared regions, (2) possess high nonlinear second-order coefficients Ȥ(2) ...
L. Koechlin Optical principles of diffraction focusing
... Illustration and formulas by Paul Deba Optical principles of diffraction focussing, ...
... Illustration and formulas by Paul Deba Optical principles of diffraction focussing, ...
Silicon photonics
Silicon photonics is the study and application of photonic systems which use silicon as an optical medium. The silicon is usually patterned with sub-micrometre precision, into microphotonic components. These operate in the infrared, most commonly at the 1.55 micrometre wavelength used by most fiber optic telecommunication systems. The silicon typically lies on top of a layer of silica in what (by analogy with a similar construction in microelectronics) is known as silicon on insulator (SOI).Silicon photonic devices can be made using existing semiconductor fabrication techniques, and because silicon is already used as the substrate for most integrated circuits, it is possible to create hybrid devices in which the optical and electronic components are integrated onto a single microchip. Consequently, silicon photonics is being actively researched by many electronics manufacturers including IBM and Intel, as well as by academic research groups such as that of Prof. Michal Lipson, who see it is a means for keeping on track with Moore's Law, by using optical interconnects to provide faster data transfer both between and within microchips.The propagation of light through silicon devices is governed by a range of nonlinear optical phenomena including the Kerr effect, the Raman effect, two photon absorption and interactions between photons and free charge carriers. The presence of nonlinearity is of fundamental importance, as it enables light to interact with light, thus permitting applications such as wavelength conversion and all-optical signal routing, in addition to the passive transmission of light.Silicon waveguides are also of great academic interest, due to their ability to support exotic nonlinear optical phenomena such as soliton propagation.