Concentration effect of carbon nanotube based saturable
... similar pulse shortening effect of the MLEDFL was also observed when the FWHM decreased from 3.43 to 1.85 ps as the thickness of SWCNTs SA increased 8 to 100 µm. With an erbium-doped fiber length of 80 cm, the shortest pulse width of 1.85 ps were achieved at 1.56µm with a repetition rate of 11.1MHz ...
... similar pulse shortening effect of the MLEDFL was also observed when the FWHM decreased from 3.43 to 1.85 ps as the thickness of SWCNTs SA increased 8 to 100 µm. With an erbium-doped fiber length of 80 cm, the shortest pulse width of 1.85 ps were achieved at 1.56µm with a repetition rate of 11.1MHz ...
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... nonlinearities. To understand the physical origin of these localized solutions we should discuss them in more detail. First, we note that Eqs. (2) [and (3)] always have the simple solutions with w 0. For this type of solution solitons p of the the x s3d nonlinearity itself can support p ayssxd sec ...
... nonlinearities. To understand the physical origin of these localized solutions we should discuss them in more detail. First, we note that Eqs. (2) [and (3)] always have the simple solutions with w 0. For this type of solution solitons p of the the x s3d nonlinearity itself can support p ayssxd sec ...
Generation and Application of Bessel Beams in Electron Microscopy
... microscopy (STEM), in one case resulting in a Fresnel lens analogous to zone plate lenses for X-rays [14]. However, these types of lenses pose a significant nanofabrication challenge. Beyond the examples mainly focused on vortex beams, relatively little work has been done with a view to shaping elec ...
... microscopy (STEM), in one case resulting in a Fresnel lens analogous to zone plate lenses for X-rays [14]. However, these types of lenses pose a significant nanofabrication challenge. Beyond the examples mainly focused on vortex beams, relatively little work has been done with a view to shaping elec ...
Resonant-Cavity Light-Emitting Diodes: a review
... quantisation in microcavities to enhance spontaneous emission properties, directionality, intensity and purity can as well denote key performance characteristics of LEDs. These assets make RCLEDs particularly suited for optical communication applications, more specifically data communication via Pla ...
... quantisation in microcavities to enhance spontaneous emission properties, directionality, intensity and purity can as well denote key performance characteristics of LEDs. These assets make RCLEDs particularly suited for optical communication applications, more specifically data communication via Pla ...
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... In Young’s double slit experiment, an interference pattern in which the ninth bright fringe 2.5cm from the center of the pattern was obtained. If the slit separation is 0.5mm and the distance between the slits and the screen is 1.5m. Calculate the wavelength of the light source. (04 marks) ...
... In Young’s double slit experiment, an interference pattern in which the ninth bright fringe 2.5cm from the center of the pattern was obtained. If the slit separation is 0.5mm and the distance between the slits and the screen is 1.5m. Calculate the wavelength of the light source. (04 marks) ...
META`15 New York
... Claire F. Gmachl, is the Eugene Higgins Professor of Electrical Engineering at Princeton University. She is best known for her work in the development of quantum cascade lasers. earned her M.Sc. in Physics from the University of Innsbruck in 1991. She went on to receive her Ph.D. in Electrical Engin ...
... Claire F. Gmachl, is the Eugene Higgins Professor of Electrical Engineering at Princeton University. She is best known for her work in the development of quantum cascade lasers. earned her M.Sc. in Physics from the University of Innsbruck in 1991. She went on to receive her Ph.D. in Electrical Engin ...
Lecture-10-Optics
... In either case, there will be a relative phase shift of upon reflection. For incident angles up to ~30 (see Fig. 4.44), regardless of [E0r] or [E0r]|| we can expect that = for the two reflected beams. Consider again the rope analogy: ...
... In either case, there will be a relative phase shift of upon reflection. For incident angles up to ~30 (see Fig. 4.44), regardless of [E0r] or [E0r]|| we can expect that = for the two reflected beams. Consider again the rope analogy: ...
2 µm Laser Sources and Their Possible Applications
... a flash lamp pumped laser which operated at 77 K. It took some years until the first pulsed laser operation at room temperature was realised in 1975 using Cr,Tm:YAG (Caird et al., 1975). Shortly after the development of the first laser diodes in the wavelength range around 800 nm continuous wave dio ...
... a flash lamp pumped laser which operated at 77 K. It took some years until the first pulsed laser operation at room temperature was realised in 1975 using Cr,Tm:YAG (Caird et al., 1975). Shortly after the development of the first laser diodes in the wavelength range around 800 nm continuous wave dio ...
Pulsed photoacoustic techniques and glucose determination in
... transducer was built and applied to measure glucose concentration in water and scattering media. Moreover, this apparatus was also used to non-invasive experiment on human fingers. The measurements showed that the expansion coefficient, specific heat and acoustic velocity change by 1.2%, -0.6% and 0 ...
... transducer was built and applied to measure glucose concentration in water and scattering media. Moreover, this apparatus was also used to non-invasive experiment on human fingers. The measurements showed that the expansion coefficient, specific heat and acoustic velocity change by 1.2%, -0.6% and 0 ...
feature article - Electrical and Computer Engineering
... (3) chemical synthesis of metal-cluster compounds and semiconductor nanocrystals,2 and (4) “natural lithography”.70,71 The inception of “natural lithography” dates from the seminal work of Fischer and Zingsheim with the introduction of “naturally”-assembled polystyrene latex nanospheres as a mask fo ...
... (3) chemical synthesis of metal-cluster compounds and semiconductor nanocrystals,2 and (4) “natural lithography”.70,71 The inception of “natural lithography” dates from the seminal work of Fischer and Zingsheim with the introduction of “naturally”-assembled polystyrene latex nanospheres as a mask fo ...
Diffraction Limited Astronomical Imaging Through the Atmosphere
... their telescopes was limited by the finite diameter of the mirror used. This limit was set by the wave properties of light and meant that large, accurately figured mirrors would be required in order to obtain higher resolution. Well figured telescopes with larger aperture diameters were constructed, ...
... their telescopes was limited by the finite diameter of the mirror used. This limit was set by the wave properties of light and meant that large, accurately figured mirrors would be required in order to obtain higher resolution. Well figured telescopes with larger aperture diameters were constructed, ...
Basic Wavefront Aberration Theory for Optical Metrology
... which is good for Strehl ratios as small as 0.1. Once the normalized intensity at diffraction focus has been determined, the quality of the optical system may be ascertained using the Marécha1 criterion. The Marécha1 criterion states that a system is regarded as well corrected if the normalized inte ...
... which is good for Strehl ratios as small as 0.1. Once the normalized intensity at diffraction focus has been determined, the quality of the optical system may be ascertained using the Marécha1 criterion. The Marécha1 criterion states that a system is regarded as well corrected if the normalized inte ...
Polarized Light Assessment of Complex Turbid
... Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Laser cooling and trapping of atoms
... the field has been dubbed laser cooling, and this name has persisted throughout the years. In section II we introduce the general idea of optical forces and how they can act on atoms. We show how such forces can be velocity dependent, and thus nonconservative, which makes it possible to use optical f ...
... the field has been dubbed laser cooling, and this name has persisted throughout the years. In section II we introduce the general idea of optical forces and how they can act on atoms. We show how such forces can be velocity dependent, and thus nonconservative, which makes it possible to use optical f ...
Customer-Made 3×3 Polymer Optical Fiber Splitter Based on Green
... that the excessive loss is high enough where most of the loss exceeds 10 dB. It can be considered as a great loss for a communication system in which the normal loss of POF is about 1 dB m−1. This excessive loss caused by light through the POF splitter that is not refracted out entirely. This may be ...
... that the excessive loss is high enough where most of the loss exceeds 10 dB. It can be considered as a great loss for a communication system in which the normal loss of POF is about 1 dB m−1. This excessive loss caused by light through the POF splitter that is not refracted out entirely. This may be ...
Controlled Variables: Psychology as the Center Fielder Views It
... according to Chapman, is a side effect of the control of perception; the perception being controlled is the rate of change of the projection of the image of the ball on the eye. Chapman was making a guess about what fly ball catching behavior might look like from the fielder's perspective. From the ...
... according to Chapman, is a side effect of the control of perception; the perception being controlled is the rate of change of the projection of the image of the ball on the eye. Chapman was making a guess about what fly ball catching behavior might look like from the fielder's perspective. From the ...
Waveguide Dispersion
... Rayleigh scattering involves the polarization of a small dielectric particle or a region that is much smaller than the light wavelength. The field forces dipole oscillations in the particle (by polarizing it) which leads to the emission of EM waves in "many" directions so that a portion of the light ...
... Rayleigh scattering involves the polarization of a small dielectric particle or a region that is much smaller than the light wavelength. The field forces dipole oscillations in the particle (by polarizing it) which leads to the emission of EM waves in "many" directions so that a portion of the light ...
Sub-wavelength grating for enhanced ring resonator biosensor
... mode mismatch loss [35–38], meta material lenses [39], waveguide crossings [32], and filtering applications [40], they have yet to be experimentally demonstrated for biosensing applications [41, 42]. Wangüemert-Pérez et al. proposed the use of SWG waveguides for biosensing [42] and employed a Four ...
... mode mismatch loss [35–38], meta material lenses [39], waveguide crossings [32], and filtering applications [40], they have yet to be experimentally demonstrated for biosensing applications [41, 42]. Wangüemert-Pérez et al. proposed the use of SWG waveguides for biosensing [42] and employed a Four ...
pattern formation and competition in nonlinear optics - Ino-Cnr
... a description of each atom is an isospin space of spin 1/2. The last two equations are like Bloch equations which describe the spin precession in the presence of a magnetic "eld. For such a reason, Eqs. (10) are called Maxwell}Bloch equations. The presence of loss rates means that the three relevant ...
... a description of each atom is an isospin space of spin 1/2. The last two equations are like Bloch equations which describe the spin precession in the presence of a magnetic "eld. For such a reason, Eqs. (10) are called Maxwell}Bloch equations. The presence of loss rates means that the three relevant ...
Quantitative phase and refractive index measurements with point
... The component arrangements in that instrument are shown in Fig. 2. A small 25 mw laser (λ 405 nm) is incorporated in the housing of a standard 100× microscope objective. The laser beam with a beam divergence <0.6 × 0.3 mrad is focused by the objective lens onto a pinhole that is mounted directly i ...
... The component arrangements in that instrument are shown in Fig. 2. A small 25 mw laser (λ 405 nm) is incorporated in the housing of a standard 100× microscope objective. The laser beam with a beam divergence <0.6 × 0.3 mrad is focused by the objective lens onto a pinhole that is mounted directly i ...
Tunable nonlinear fiber optics using dense noble gases
... study of light-matter interactions leading to the diverse field of nonlinear optics [1, 2, 3]. Exciting phenomenon like supercontinuum generation [4, 5], high power laser development, etc led to applications and research advancements in virtually all fields of science spanning from high energy physi ...
... study of light-matter interactions leading to the diverse field of nonlinear optics [1, 2, 3]. Exciting phenomenon like supercontinuum generation [4, 5], high power laser development, etc led to applications and research advancements in virtually all fields of science spanning from high energy physi ...