Studies of Nonlinear Femtosecond Pulse Propagation in Bulk
... sity and therefore faster transmission of the data. The high intensities associated with shorter pulses, however, can lead to nonlinear propagation effects and increased temporal spreading or pulse deformation during transmission. Temporal spreading limits the density of pulses that can be sent down ...
... sity and therefore faster transmission of the data. The high intensities associated with shorter pulses, however, can lead to nonlinear propagation effects and increased temporal spreading or pulse deformation during transmission. Temporal spreading limits the density of pulses that can be sent down ...
Fiber optic sensor network for the monitoring of civil
... For sharing his passion for civil engineering with me, teaching me most that I know in this field and contributing in a decisive matter to the success of this project. Sharing our office with him was a real pleasure. I wish Sam good luck for his own PhD. ...
... For sharing his passion for civil engineering with me, teaching me most that I know in this field and contributing in a decisive matter to the success of this project. Sharing our office with him was a real pleasure. I wish Sam good luck for his own PhD. ...
A mis padres y mi hermana A Iván A la memoria de Alberto Serrano
... The cornea and the lens of the eye project the images of the external world onto the retina. For adequate visual perception, this image should be focused on the photoreceptor layer (the cells that are responsible for light capture). One of the most extraordinary processes of ocular development in ve ...
... The cornea and the lens of the eye project the images of the external world onto the retina. For adequate visual perception, this image should be focused on the photoreceptor layer (the cells that are responsible for light capture). One of the most extraordinary processes of ocular development in ve ...
Retarder Principles
... Precision Retarders are supplied with a broadband antireflection coating. Optical transmittance of a Precision Retarder is typically greater than 97%. The retardance d at a wavelength λ that is different from the center wavelength λc is given by: d ≈ dc(λc / λ) where dc is the retardance at λc. This ...
... Precision Retarders are supplied with a broadband antireflection coating. Optical transmittance of a Precision Retarder is typically greater than 97%. The retardance d at a wavelength λ that is different from the center wavelength λc is given by: d ≈ dc(λc / λ) where dc is the retardance at λc. This ...
Raman microscopy in an electron microscope: combining chemical
... intercept a high fraction of the emitted signal. This leads to typically worse resolution than for SE imaging. Contrast arises from spatial variations in those properties that affect the intensity of the signal, so in each mode information is obtainable concerning a group of properties. These differ ...
... intercept a high fraction of the emitted signal. This leads to typically worse resolution than for SE imaging. Contrast arises from spatial variations in those properties that affect the intensity of the signal, so in each mode information is obtainable concerning a group of properties. These differ ...
Cavity Quantum Electrodynamics with Ultracold Atoms
... of our knowledge, however, the scaling of the dynamics with the number of atoms N is still largely unexplored in this regime. In Chapter 2 of this thesis, we characterize the coherence properties of the light at the cavity output when the light is scattered from a laser into the resonator by a perio ...
... of our knowledge, however, the scaling of the dynamics with the number of atoms N is still largely unexplored in this regime. In Chapter 2 of this thesis, we characterize the coherence properties of the light at the cavity output when the light is scattered from a laser into the resonator by a perio ...
Displacement laser interferometry with sub-nanometer
... Displacement laser interferometers are used widely as precision displacement measuring systems. This thesis describes the error sources which should be considered when measuring with these systems with (sub-)nanometer uncertainty, along with possible methods to overcome these errors. When considerin ...
... Displacement laser interferometers are used widely as precision displacement measuring systems. This thesis describes the error sources which should be considered when measuring with these systems with (sub-)nanometer uncertainty, along with possible methods to overcome these errors. When considerin ...
Light Scattering by Fractal Aggregates: A Review
... usually in some manner contrived and not the result of “natural” processes. Light scattering is the central theme of this review, but it is set in the context of the scattering of waves in general. This is done not only because many of the results to be described were derived from and/or can be appl ...
... usually in some manner contrived and not the result of “natural” processes. Light scattering is the central theme of this review, but it is set in the context of the scattering of waves in general. This is done not only because many of the results to be described were derived from and/or can be appl ...
Thomson scattering
... • Accurate spatial location via imaging or time of flight Roberto Pasqualotto ...
... • Accurate spatial location via imaging or time of flight Roberto Pasqualotto ...
Phase Matching and Coherence of High-Order Harmonic
... loss in the driving laser beam due to ionization or refraction, or by interference between coupled modes of the waveguide, are measured. The dynamic nature of the coherence length of high harmonic generation makes an in-situ measurement of this kind crucial for any implementation of quasi-phase matc ...
... loss in the driving laser beam due to ionization or refraction, or by interference between coupled modes of the waveguide, are measured. The dynamic nature of the coherence length of high harmonic generation makes an in-situ measurement of this kind crucial for any implementation of quasi-phase matc ...
Nd:YAG Based Laser Sources for Targeting
... efficiency of 40% was achieved for 36 mJ output of 1573 nm eye-safe light from a 90 mJ laser at 1064 nm. The relative pointing directions of the two wavelength beams was measured to be within 250 µRad angular separation, which will be unaffected by ambient temperature variation. This level of perfor ...
... efficiency of 40% was achieved for 36 mJ output of 1573 nm eye-safe light from a 90 mJ laser at 1064 nm. The relative pointing directions of the two wavelength beams was measured to be within 250 µRad angular separation, which will be unaffected by ambient temperature variation. This level of perfor ...
Elaboration and optimization of tellurite-based
... only the largest T reported for these highly nonlinear glasses to date, but coincides with a commensurate decrease of the refractive index. A hydroxyl purification has been developed that when employed, resulted in high purity preform materials exhibiting a limited absorption in the transmission b ...
... only the largest T reported for these highly nonlinear glasses to date, but coincides with a commensurate decrease of the refractive index. A hydroxyl purification has been developed that when employed, resulted in high purity preform materials exhibiting a limited absorption in the transmission b ...
Optical Pumping
... excited state is illuminated by circularly polarized resonance radiation which propagates along the direction of ' FIG. 1. A simple optical pumping experiment. Atoms are a small magnetic field H. Ground-state atoms in the —, sublevel cannot absorb light since they cannot accom- polarized by the scat ...
... excited state is illuminated by circularly polarized resonance radiation which propagates along the direction of ' FIG. 1. A simple optical pumping experiment. Atoms are a small magnetic field H. Ground-state atoms in the —, sublevel cannot absorb light since they cannot accom- polarized by the scat ...
Frontiers in Optics 2010/Laser Science XXVI
... and an exhibit hall featuring leading companies in the field. Headlining the popular Plenary Session and Awards Ceremony were Alain Aspect, speaking on quantum optics; Steven Block, who discussed single molecule biophysics; and award winners Joseph Eberly, Henry Kapteyn and Margaret Murnane. Led by ...
... and an exhibit hall featuring leading companies in the field. Headlining the popular Plenary Session and Awards Ceremony were Alain Aspect, speaking on quantum optics; Steven Block, who discussed single molecule biophysics; and award winners Joseph Eberly, Henry Kapteyn and Margaret Murnane. Led by ...
Fluorescence of coumarins and xanthenes after two
... therefore been proposed that the enhanced resolution that is available through UV light can be achieved without the need for special UV optics.9 This has been proven for confocal fluorescence microscopy, showing that two-photon absorption leads to a confinement of the illumination volume.10 In these ...
... therefore been proposed that the enhanced resolution that is available through UV light can be achieved without the need for special UV optics.9 This has been proven for confocal fluorescence microscopy, showing that two-photon absorption leads to a confinement of the illumination volume.10 In these ...
Raman Spectroscopy on Semiconductor Nanowires
... that the transversal optical (TO) and the longitudinal optical (LO) modes have a position in energy close to that observed in bulk. When scaling down the size and the dimensionality of the structures, the position can change (see section 3.1). Additionally, new Raman modes can be found. Effects rela ...
... that the transversal optical (TO) and the longitudinal optical (LO) modes have a position in energy close to that observed in bulk. When scaling down the size and the dimensionality of the structures, the position can change (see section 3.1). Additionally, new Raman modes can be found. Effects rela ...
Untitled
... effective way. Both continuous and quasi-distributed sensors are discussed. The continuous type of distributed sensor is based on the intrinsic effect existing in optic fibers (such as Rayleigh scattering). The most widely used type is optical time domain reflectrometry (OTDR), which has become an indis ...
... effective way. Both continuous and quasi-distributed sensors are discussed. The continuous type of distributed sensor is based on the intrinsic effect existing in optic fibers (such as Rayleigh scattering). The most widely used type is optical time domain reflectrometry (OTDR), which has become an indis ...
Ray-optics cloaking devices for large objects in incoherent natural light
... ingenious theory of macroscopic invisibility cloaking was proposed based on transformation optics principles2,3. Because of the tremendous difficulty in practical realization, various approximations4–6,19 were generally made to simplify the complexity of a perfect cloak. For example, non-magnetic opt ...
... ingenious theory of macroscopic invisibility cloaking was proposed based on transformation optics principles2,3. Because of the tremendous difficulty in practical realization, various approximations4–6,19 were generally made to simplify the complexity of a perfect cloak. For example, non-magnetic opt ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.