![Nanoconcentration of terahertz radiation in](http://s1.studyres.com/store/data/007928333_1-94332d63565b9143b606a9816e4a9d50-300x300.png)
Nanoconcentration of terahertz radiation in
... [6, 7, 8] and ultrasensitive Raman spectroscopy [9]. It will be very beneficial for the fundamental science, engineering, environmental, and defense applications to be able to nano-concentrate terahertz radiation (frequency 1 − 10 THz or vacuum wavelength λ 0 = 300 − 30 μ m). This will allow for the ...
... [6, 7, 8] and ultrasensitive Raman spectroscopy [9]. It will be very beneficial for the fundamental science, engineering, environmental, and defense applications to be able to nano-concentrate terahertz radiation (frequency 1 − 10 THz or vacuum wavelength λ 0 = 300 − 30 μ m). This will allow for the ...
Coherent manipulation of the internal state of an atomic gas
... sense: they are characterized by a high propagation velocity, can be modulated up to high frequencies, and are relatively robust against decoherence. However it is not easy either to store them or to have some interaction among them. For these tasks, material media (atoms, ions, molecules, quantum-d ...
... sense: they are characterized by a high propagation velocity, can be modulated up to high frequencies, and are relatively robust against decoherence. However it is not easy either to store them or to have some interaction among them. For these tasks, material media (atoms, ions, molecules, quantum-d ...
Stability and Mobility of Localized and Extended Excitations in Nonlinear Schr¨
... the excitation, such that the phase is increased by 2πS, where S is the topological charge, on the completion of one turn. Some ring-like vortex excitations are considered and in particular a stable vortex with S = 2 is found. It is also noted that the effect of charge flipping, i.e., when the topolog ...
... the excitation, such that the phase is increased by 2πS, where S is the topological charge, on the completion of one turn. Some ring-like vortex excitations are considered and in particular a stable vortex with S = 2 is found. It is also noted that the effect of charge flipping, i.e., when the topolog ...
Nonlinear Optical Phenomena and Materials
... (4), and later Akhmanov et al (5) showed that phase velocity matching could be achieved in birefringent crystals by using the crystal birefringence to offset the dispersion. Along with the important concept of phasematching, other effects leading to efficient second harmonic generation were studied. ...
... (4), and later Akhmanov et al (5) showed that phase velocity matching could be achieved in birefringent crystals by using the crystal birefringence to offset the dispersion. Along with the important concept of phasematching, other effects leading to efficient second harmonic generation were studied. ...
High efficiency high power blue laser by resonant doubling in PPKTP.
... technical applications (for eg. spectroscopy, dark field wafer inspection, etc). While blue diode lasers continue to improve [1] IR frequency doubling techniques still offer attractive features for blue generation. Three basic techniques are in use for doubling. Bulk single pass doubling is one, whe ...
... technical applications (for eg. spectroscopy, dark field wafer inspection, etc). While blue diode lasers continue to improve [1] IR frequency doubling techniques still offer attractive features for blue generation. Three basic techniques are in use for doubling. Bulk single pass doubling is one, whe ...
MPE Tutorial Multiphoton Excitation Microscopy 5100 Patrick Henry Drive
... simple solution for delivery of ultrafast pulses at a higher average power than is possible with a fiber delivery set-up. However, maintaining alignment of the relay mirrors can be a problem, and the beam path should be enclosed to prevent accidentally exposing the operator to the beam. In addition, ...
... simple solution for delivery of ultrafast pulses at a higher average power than is possible with a fiber delivery set-up. However, maintaining alignment of the relay mirrors can be a problem, and the beam path should be enclosed to prevent accidentally exposing the operator to the beam. In addition, ...
Vertical-Cavity Surface-Emitting Lasers: Advanced
... An important contribution of this thesis is the novel concept of chirpassisted coherent detection for direct current modulated VCSELs. A coherent receiver approach that exploits adiabatic frequency chirping of direct modulated VCSELs to improve the extinction ratio of received signals is introduced. ...
... An important contribution of this thesis is the novel concept of chirpassisted coherent detection for direct current modulated VCSELs. A coherent receiver approach that exploits adiabatic frequency chirping of direct modulated VCSELs to improve the extinction ratio of received signals is introduced. ...
Homogeneous and isotropic bends to tunnel waves
... isotropic negative refraction index material [15]. Although these benders are more advanced than previous benders [9–13], they imply that: (1) the benders can only connect two waveguides of equal width; (2) they are still difficult to realize due to the bender with inhomogeneous materials [14] or wi ...
... isotropic negative refraction index material [15]. Although these benders are more advanced than previous benders [9–13], they imply that: (1) the benders can only connect two waveguides of equal width; (2) they are still difficult to realize due to the bender with inhomogeneous materials [14] or wi ...
electromagnetically induced transparency - IAP TU
... and quantum information, lossless propagation of laser beams through optically thick media, and highly efficient and selective population transfer via coherent adiabatic processes. EIT is one of an interrelated group of processes, for example, including coherent population trapping (CPT) and coheren ...
... and quantum information, lossless propagation of laser beams through optically thick media, and highly efficient and selective population transfer via coherent adiabatic processes. EIT is one of an interrelated group of processes, for example, including coherent population trapping (CPT) and coheren ...
parametric interactions of short optical pulses in quasi
... While the properties of short duration, broad bandwidth, and high peak power, make ultrashort pulses attractive for many applications, they pose unique challenges in the context of frequency conversion and amplification. This thesis addresses how quasi-phase-matching (QPM) technology is well suited ...
... While the properties of short duration, broad bandwidth, and high peak power, make ultrashort pulses attractive for many applications, they pose unique challenges in the context of frequency conversion and amplification. This thesis addresses how quasi-phase-matching (QPM) technology is well suited ...
High-power, fiber-laser-pumped frequency conversion sources for the ultraviolet
... in top research and cutting-edge technology. But not only research and technology; are the leadership techniques, the personal development courses and the entrepreneurial spirit that everyday involves to each and every ICFOnian what makes the difference between a great place and a top place. I am em ...
... in top research and cutting-edge technology. But not only research and technology; are the leadership techniques, the personal development courses and the entrepreneurial spirit that everyday involves to each and every ICFOnian what makes the difference between a great place and a top place. I am em ...
The mechanics of adhesion polymers and their
... The trap itself is usually formed using a high numerical aperture (NA) microscope objective and the setup is usually built around an inverted microscope [33, 34]. This makes imaging of the sample easy since all optics is already there. In addition, it also makes it very straight forward to include m ...
... The trap itself is usually formed using a high numerical aperture (NA) microscope objective and the setup is usually built around an inverted microscope [33, 34]. This makes imaging of the sample easy since all optics is already there. In addition, it also makes it very straight forward to include m ...
Light & Matter: Absorption and Scattering
... • Much more complicated than absorption • Light is hardly observed from the source, but reaches our eyes indirectly through scattering • Inhomogeneity causes scattering; cloud, raindrop, etc. • Elastic (Rayleigh, Mie) or inelastic (Raman, Ramen) ...
... • Much more complicated than absorption • Light is hardly observed from the source, but reaches our eyes indirectly through scattering • Inhomogeneity causes scattering; cloud, raindrop, etc. • Elastic (Rayleigh, Mie) or inelastic (Raman, Ramen) ...
Integrated Optic/Nanofluidic Detection Device with Plasmonic Readout
... device. Integrating the system components achieves several goals, including making the device simpler and more robust (7)(8). Additionally, an integrated system will decrease cost, and reduce scattering and background noise by eliminating the need for expensive, large optical components that need to ...
... device. Integrating the system components achieves several goals, including making the device simpler and more robust (7)(8). Additionally, an integrated system will decrease cost, and reduce scattering and background noise by eliminating the need for expensive, large optical components that need to ...
Soliton Interactions and the Formation of Solitonic Patterns
... In this thesis, we present several mechanisms leading to pattern formation in soliton-supporting media. In Chapter 2, we propagate optical temporal solitons in a multistage fiber optic system to generate exact Cantor Set fractals [52]. The fractal is generated from a single input soliton. This soli ...
... In this thesis, we present several mechanisms leading to pattern formation in soliton-supporting media. In Chapter 2, we propagate optical temporal solitons in a multistage fiber optic system to generate exact Cantor Set fractals [52]. The fractal is generated from a single input soliton. This soli ...
Microsphere optical device
... [0006] The high Q factor of microsphere optical devices results from loW optical loss in the material (typically, ?ber-grade fused silica), a ?re-polished surface With subna nometer-scale inhomogeneities, high-index contrast for steep reduction of radiative and scattering losses With increasing radi ...
... [0006] The high Q factor of microsphere optical devices results from loW optical loss in the material (typically, ?ber-grade fused silica), a ?re-polished surface With subna nometer-scale inhomogeneities, high-index contrast for steep reduction of radiative and scattering losses With increasing radi ...
15. Atmospheric Channel Effects and the Impact on
... have to be expected for example for clear skies at zenith. Much stronger absorption with more than 10 dB have to be expected at low elevation angles (<20 degrees). Different weather conditions can also cause variations of the atmospheric loss by several orders of magnitude. Usually all weather pheno ...
... have to be expected for example for clear skies at zenith. Much stronger absorption with more than 10 dB have to be expected at low elevation angles (<20 degrees). Different weather conditions can also cause variations of the atmospheric loss by several orders of magnitude. Usually all weather pheno ...
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.