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Laser Molecular Spectroscopy CHE466 Fall 2007
... The efficiency of a laser is related to its ability to sustain a population inversion and regenerate a population in the low energy state to initiate a new pumping cycle. As you may see a 2 level laser would be very inefficient, because a population inversion may not be acquired as a result of popul ...
... The efficiency of a laser is related to its ability to sustain a population inversion and regenerate a population in the low energy state to initiate a new pumping cycle. As you may see a 2 level laser would be very inefficient, because a population inversion may not be acquired as a result of popul ...
Fourier Decomposition Analysis af Anisotropic Inhomogeneous
... for modal analysis of arbitrary shaped inhomogeneous dielectric waveguides with small changes in the refractive index function (weakly guiding) and negligible induced birefringence for modes that are far from their cutoff [14]. This analysis, which was further investigated by Marcuse [15], allows ev ...
... for modal analysis of arbitrary shaped inhomogeneous dielectric waveguides with small changes in the refractive index function (weakly guiding) and negligible induced birefringence for modes that are far from their cutoff [14]. This analysis, which was further investigated by Marcuse [15], allows ev ...
Tolerancing Optical Systems
... level of workmanship in the part and face it, nobody wants their expensive optics to looks like hell, even if appearance does not impact performance. In most cases surface defects only cause a tiny loss in the system throughput and cause a slight increase in scattered light. In almost all cases, the ...
... level of workmanship in the part and face it, nobody wants their expensive optics to looks like hell, even if appearance does not impact performance. In most cases surface defects only cause a tiny loss in the system throughput and cause a slight increase in scattered light. In almost all cases, the ...
arXiv:quant-ph/0602132 v2 20 Feb 2006
... data storage densities beyond those of present day systems. The trend of compacting more information into an optical disc therefore primarily relies on the use of shorter wavelength lasers to achieve smaller diffraction limited spot sizes. One could envisage that in the not too distant future, such ...
... data storage densities beyond those of present day systems. The trend of compacting more information into an optical disc therefore primarily relies on the use of shorter wavelength lasers to achieve smaller diffraction limited spot sizes. One could envisage that in the not too distant future, such ...
436 KB - The Photonic Systems Group
... modulation speeds of 40 Gb/s and above [13], where the nonlinear interactions among different wavelength channels become less-limiting factors. As a result of the short pulse width and high data rate, optical pulses within one channel are quickly dispersed and overlap significantly so to interact th ...
... modulation speeds of 40 Gb/s and above [13], where the nonlinear interactions among different wavelength channels become less-limiting factors. As a result of the short pulse width and high data rate, optical pulses within one channel are quickly dispersed and overlap significantly so to interact th ...
optical properties of dielectric mirrors, produced by large area glass
... In case of wet coating, the metal used as reflective substrate is silver. It is deposited onto the glass surface, via certain chemical process as result of chemical reaction of two chemicals. The deposited Ag is protected (covered) by Cu, and one or two additional protective layers (painting), to pr ...
... In case of wet coating, the metal used as reflective substrate is silver. It is deposited onto the glass surface, via certain chemical process as result of chemical reaction of two chemicals. The deposited Ag is protected (covered) by Cu, and one or two additional protective layers (painting), to pr ...
Simultaneous slow and fast light effects using in atomic vapor
... 25 May 2009 / Vol. 17, No. 11 / OPTICS EXPRESS 8775 ...
... 25 May 2009 / Vol. 17, No. 11 / OPTICS EXPRESS 8775 ...
The Femtosecond Frequency Comb: From
... The individual frequency components of the mode-locked laser could be observed by simply overlapping the beam from a single frequency laser with the mode-locked laser. When this combined beam is sent onto a fast photodiode, the resulting photocurrent will only be sufficiently fast to follow the diff ...
... The individual frequency components of the mode-locked laser could be observed by simply overlapping the beam from a single frequency laser with the mode-locked laser. When this combined beam is sent onto a fast photodiode, the resulting photocurrent will only be sufficiently fast to follow the diff ...
IOSR Journal of Computer Engineering (IOSR-JCE) e-ISSN: 2278-0661,p-ISSN: 2278-8727 PP 06-11 www.iosrjournals.org
... element are 0.02μm allows obtaining a very fast response. Preliminary estimations of the response time for nonoptimized devices are about 100ns [19]. On the other hand, when MOM diodes are used as rectifying elements, the response of the antenna is typically limited by the transmission lines and the ...
... element are 0.02μm allows obtaining a very fast response. Preliminary estimations of the response time for nonoptimized devices are about 100ns [19]. On the other hand, when MOM diodes are used as rectifying elements, the response of the antenna is typically limited by the transmission lines and the ...
A method for characterizing longitudinal chromatic aberration of
... 1·4, and a second when stopped down to 0·7NA, where the performance is seen to be slightly improved. It should be noted that this objective is of a much more recent design than the semi-apochromat 100× 1·36NA objective (C), results of which are also presented in Fig. 3. Figure 4(a) shows the variati ...
... 1·4, and a second when stopped down to 0·7NA, where the performance is seen to be slightly improved. It should be noted that this objective is of a much more recent design than the semi-apochromat 100× 1·36NA objective (C), results of which are also presented in Fig. 3. Figure 4(a) shows the variati ...
Nonlinear optics in daily life
... threshold for a CW silicon Raman laser [13], Japanese researchers have recently reported μW-threshold Raman lasers in silicon with μm-scale geometry [14]. It remains to be seen if this will become useful. 2.1.5 White light continuum One last source of new wavelengths comes from self-phase modulation ...
... threshold for a CW silicon Raman laser [13], Japanese researchers have recently reported μW-threshold Raman lasers in silicon with μm-scale geometry [14]. It remains to be seen if this will become useful. 2.1.5 White light continuum One last source of new wavelengths comes from self-phase modulation ...
Material Properties - CVI Melles Griot 2009 Technical Guide, Vol 2
... A borosilicate crown glass, BK7, is the material used in many CVI Melles Griot products. BK7 performs well in chemical tests so that special treatment during polishing is not necessary. BK7, a relatively hard glass, does not scratch easily and can be handled without special precautions. The bubble a ...
... A borosilicate crown glass, BK7, is the material used in many CVI Melles Griot products. BK7 performs well in chemical tests so that special treatment during polishing is not necessary. BK7, a relatively hard glass, does not scratch easily and can be handled without special precautions. The bubble a ...
Ab-initio Calculations of Photonic Structures
... generation at room temperature — relying mainly on optical rectification schemes — require intricate phase-matching set-ups and powerful lasers.2,3 Recently, different approaches to resonant enhancement of difference-frequency nonlinear coupling processes, including those involving a final frequency ...
... generation at room temperature — relying mainly on optical rectification schemes — require intricate phase-matching set-ups and powerful lasers.2,3 Recently, different approaches to resonant enhancement of difference-frequency nonlinear coupling processes, including those involving a final frequency ...
Optics and Quantum Electronics E. P. Ippen
... Ti:sapphire laser oscillator [1]. Detection of the carrier-envelope phase is then achieved by focusing the short pulses directly from the oscillator into a BBO-crystal. As a further example of nonlinear optics with such short pulses, the interference between second and third harmonic components was ...
... Ti:sapphire laser oscillator [1]. Detection of the carrier-envelope phase is then achieved by focusing the short pulses directly from the oscillator into a BBO-crystal. As a further example of nonlinear optics with such short pulses, the interference between second and third harmonic components was ...
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.