pira demonstration bibliography
... literature on the subject. This makes it possible to expand and enhance the demonstrations facility at any school using this volume. I remember the first meeting at the University of Texas Austin, where he was a tireless and demanding taskmaster. Keeping us on course and focused could be a challenge ...
... literature on the subject. This makes it possible to expand and enhance the demonstrations facility at any school using this volume. I remember the first meeting at the University of Texas Austin, where he was a tireless and demanding taskmaster. Keeping us on course and focused could be a challenge ...
pira demonstration bibliography
... literature on the subject. This makes it possible to expand and enhance the demonstrations facility at any school using this volume. I remember the first meeting at the University of Texas Austin, where he was a tireless and demanding taskmaster. Keeping us on course and focused could be a challenge ...
... literature on the subject. This makes it possible to expand and enhance the demonstrations facility at any school using this volume. I remember the first meeting at the University of Texas Austin, where he was a tireless and demanding taskmaster. Keeping us on course and focused could be a challenge ...
High Harmonic Generation for Coherent Diffractive Imaging
... where only a few harmonic orders of short wavelength or a dominant photon energy are required and any optics in the harmonic beam path, such as reflection gratings, is undesirable. The novel and flexible approach of spectral extraction based on the application of the maximum entropy method to the in ...
... where only a few harmonic orders of short wavelength or a dominant photon energy are required and any optics in the harmonic beam path, such as reflection gratings, is undesirable. The novel and flexible approach of spectral extraction based on the application of the maximum entropy method to the in ...
Optical Pumping
... This pumping can be detected in two ways. Ke notice VIII. Atoms with 'So Ground States. . . . . . . . . . . . . , . . . . . . 229 A. Mercury. . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . 230 that when all atoms have been pumped into the +-', 1. Wall Relaxation of Mercury. . ...
... This pumping can be detected in two ways. Ke notice VIII. Atoms with 'So Ground States. . . . . . . . . . . . . , . . . . . . 229 A. Mercury. . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . 230 that when all atoms have been pumped into the +-', 1. Wall Relaxation of Mercury. . ...
Femtosecond filamentation in transparent media
... 3.1. Main results obtained by the analytical approaches (beam–particle analogy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2. Main results obtained by numerical simulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... 3.1. Main results obtained by the analytical approaches (beam–particle analogy) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.2. Main results obtained by numerical simulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Phase Matching and Coherence of High-Order Harmonic
... beam, and a study of the effects of modulation depth in the technique of quasi-phase matching using hollow waveguides with a modulated inner diameter. Counterpropagating light is used for the first time as a tool for measuring the insitu coherence length of the harmonic generation process. Through t ...
... beam, and a study of the effects of modulation depth in the technique of quasi-phase matching using hollow waveguides with a modulated inner diameter. Counterpropagating light is used for the first time as a tool for measuring the insitu coherence length of the harmonic generation process. Through t ...
Mechanisms of Pulsed Laser Ablation of
... gleaned from these studies and organize it into a logical structure that provides an improved mechanistic understanding of pulsed laser ablation of tissue. We consider ablation to be any process of tissue incision or removal, regardless of the photophysical or photochemical processes involved. We re ...
... gleaned from these studies and organize it into a logical structure that provides an improved mechanistic understanding of pulsed laser ablation of tissue. We consider ablation to be any process of tissue incision or removal, regardless of the photophysical or photochemical processes involved. We re ...
00800001a2_8.pdf
... emitted by the active medium (solid-state material, gas, or liquid dye) differs insignificantly from the radiation emitted by thermal light sources. Characteristic properties of laser radiation, such as high brightness, high temporal and spatial coherence, and narrow bandwidth, are a result of the opt ...
... emitted by the active medium (solid-state material, gas, or liquid dye) differs insignificantly from the radiation emitted by thermal light sources. Characteristic properties of laser radiation, such as high brightness, high temporal and spatial coherence, and narrow bandwidth, are a result of the opt ...
Thesis - Swinburne University of Technology
... gases in the past few years [Par05, Wer09, Kuh10, Ste10, Sag12] with di↵erent approaches (both theoretical and experimental) leading to di↵erent outcomes [Hu11]. In experimental physics, one of the simplest approaches one can take to learn about the structure of a new system is to scatter particles ...
... gases in the past few years [Par05, Wer09, Kuh10, Ste10, Sag12] with di↵erent approaches (both theoretical and experimental) leading to di↵erent outcomes [Hu11]. In experimental physics, one of the simplest approaches one can take to learn about the structure of a new system is to scatter particles ...
Creation of Ultracold RbCs Ground
... deeply bound molecules in well controlled internal and external quantum states. In order to achieve stability against radiative decay and inelastic two-body collisions, it is desirable to create the molecules in the lowest energy ground state of each degree of freedom. Few years after the creation o ...
... deeply bound molecules in well controlled internal and external quantum states. In order to achieve stability against radiative decay and inelastic two-body collisions, it is desirable to create the molecules in the lowest energy ground state of each degree of freedom. Few years after the creation o ...
Nd:YAG Based Laser Sources for Targeting
... verification, such as the effects of thermal lensing in the Nd:YAG slab, and the polarisation states in the resonator. These were used to analyse a number of issues encountered during manufacture, such as the lack of control over the polarisation state for output coupling, pre-lase causing damage to ...
... verification, such as the effects of thermal lensing in the Nd:YAG slab, and the polarisation states in the resonator. These were used to analyse a number of issues encountered during manufacture, such as the lack of control over the polarisation state for output coupling, pre-lase causing damage to ...
Attosecond Transient Absorption Spectroscopy - Max
... Edgerton in the mid 1950s. Utilizing snapshot photography, chronophotography and stroboscopy temporal resolutions down to microseconds became available. For tracing dynamic processes in chemistry, transient absorption spectroscopy was used to track the absorbance of light at a certain photon energy ...
... Edgerton in the mid 1950s. Utilizing snapshot photography, chronophotography and stroboscopy temporal resolutions down to microseconds became available. For tracing dynamic processes in chemistry, transient absorption spectroscopy was used to track the absorbance of light at a certain photon energy ...
DETERMINING SPATIAL MODES OF SEMICONDUCTOR LASERS
... I also appreciate the material support that we received, initially under the direction of John Loehr, from the Air Force Research Laboratory at Wright Patterson Air Force Base. I specifically thank Bill Siskaninetz who fabricated the lasers and packaged them for us, and answered my questions for me. ...
... I also appreciate the material support that we received, initially under the direction of John Loehr, from the Air Force Research Laboratory at Wright Patterson Air Force Base. I specifically thank Bill Siskaninetz who fabricated the lasers and packaged them for us, and answered my questions for me. ...
High-power, continuous-wave optical parametric oscillators
... visible to the near-infrared (near-IR). While lasers have been in use for nearly 50 years, it is still difficult to develop laser systems that can cover many regions of the optical spectrum, from the ultraviolet (UV) and visible to the near- and mid-infrared wavelength range, with potential applicat ...
... visible to the near-infrared (near-IR). While lasers have been in use for nearly 50 years, it is still difficult to develop laser systems that can cover many regions of the optical spectrum, from the ultraviolet (UV) and visible to the near- and mid-infrared wavelength range, with potential applicat ...
High harmonic generation by short laser pulses: time
... In the last couple of years, Hänsch and Krausz joined their forces to go even higher in frequency and shorter in time. In their collaboration, the frequency comb technique has been used to stabilize the pulse-to-pulse offset of driving laser in HHG, which turned out to be crucial in the single atto ...
... In the last couple of years, Hänsch and Krausz joined their forces to go even higher in frequency and shorter in time. In their collaboration, the frequency comb technique has been used to stabilize the pulse-to-pulse offset of driving laser in HHG, which turned out to be crucial in the single atto ...
New frontiers in quantum cascade lasers
... which consist of a digitally graded alloy of alternating ultrathin semiconductor layers. Under high enough bias such that the applied electric field suppresses the saw-tooth energy barriers, the band diagram is transformed into an energy staircase and electrons are injected efficiently into the excite ...
... which consist of a digitally graded alloy of alternating ultrathin semiconductor layers. Under high enough bias such that the applied electric field suppresses the saw-tooth energy barriers, the band diagram is transformed into an energy staircase and electrons are injected efficiently into the excite ...
High-Q Microresonators as Lasing Elements for Silicon Photonics
... necessary for high-speed communication between the logical elements between and within microprocessors. Unfortunately, crystalline silicon is widely known as a poor emitter because of its indirect bandgap. This thesis focuses on the many challenges in generating silicon-based laser sources. As most ...
... necessary for high-speed communication between the logical elements between and within microprocessors. Unfortunately, crystalline silicon is widely known as a poor emitter because of its indirect bandgap. This thesis focuses on the many challenges in generating silicon-based laser sources. As most ...
Adaptive Control of Ultrashort Laser Pulses for
... Curiosity and the desire to understand the world around them is one of the most valuable human traits that has helped to discover fundamental laws and to develop basic techniques to control fundamental processes. After mastering the laws of classical mechanics at the end of the 19th century, however ...
... Curiosity and the desire to understand the world around them is one of the most valuable human traits that has helped to discover fundamental laws and to develop basic techniques to control fundamental processes. After mastering the laws of classical mechanics at the end of the 19th century, however ...
Light-Matter Interaction: Conversion of Optical Energy and
... 1. Introduction. When a light pulse arrives at the surface of a mirror, it bounces back and transfers twice its initial momentum to the mirror.1 The mechanical motion thus set off at the front facet of the mirror travels forward and gives rise to elastic vibrations through the entire thickness of th ...
... 1. Introduction. When a light pulse arrives at the surface of a mirror, it bounces back and transfers twice its initial momentum to the mirror.1 The mechanical motion thus set off at the front facet of the mirror travels forward and gives rise to elastic vibrations through the entire thickness of th ...
Waveguide lasers in ytterbium doped tantalum pentoxide for
... ytterbium oxide was demonstrated with a laser cavity formed from a combination of high reflective mirrors with output couplers or reflections from the bare end-facets with Fresnel reflectivity of 12%. In a 5.4 µm wide waveguide, lasing was observed between 1015 nm and 1030 nm when endpumped with a 9 ...
... ytterbium oxide was demonstrated with a laser cavity formed from a combination of high reflective mirrors with output couplers or reflections from the bare end-facets with Fresnel reflectivity of 12%. In a 5.4 µm wide waveguide, lasing was observed between 1015 nm and 1030 nm when endpumped with a 9 ...
Inelastic Collisions of Atomic Antimony, Aluminum, Erbium and
... relaxation is observed in collisions with 4 He. We identify the relatively large spin-orbit coupling as the primary mechanism which distorts the electrostatic potential to introduce significant anisotropy to the ground 4 S3/2 state. The collisions are too rapid for the experiment to fix a specific valu ...
... relaxation is observed in collisions with 4 He. We identify the relatively large spin-orbit coupling as the primary mechanism which distorts the electrostatic potential to introduce significant anisotropy to the ground 4 S3/2 state. The collisions are too rapid for the experiment to fix a specific valu ...
High Power Optically Pumped Semiconductor Lasers for Sodium
... Optically pumped semiconductor lasers (OPSLs) are shown to provide a much more compact and less expensive source for illumination of the sodium layer of the mesosphere for use as a sodium laser guidestar via single and two photon excitation schemes. This represents a revolution in laser guidestar te ...
... Optically pumped semiconductor lasers (OPSLs) are shown to provide a much more compact and less expensive source for illumination of the sodium layer of the mesosphere for use as a sodium laser guidestar via single and two photon excitation schemes. This represents a revolution in laser guidestar te ...
POLITECNICO DI MILANO Polo Regionale di Lecco Faculty of
... system. Method of controlling the transient behaviour for generated pulses (in nano seconds region) is by acusto optic Q- switched device. Specifically, the amount of time required for laser pulse to reach peak power, number of pulses before nominal power reached and pulse width are measured conside ...
... system. Method of controlling the transient behaviour for generated pulses (in nano seconds region) is by acusto optic Q- switched device. Specifically, the amount of time required for laser pulse to reach peak power, number of pulses before nominal power reached and pulse width are measured conside ...
Laser pumping
Laser pumping is the act of energy transfer from an external source into the gain medium of a laser. The energy is absorbed in the medium, producing excited states in its atoms. When the number of particles in one excited state exceeds the number of particles in the ground state or a less-excited state, population inversion is achieved. In this condition, the mechanism of stimulated emission can take place and the medium can act as a laser or an optical amplifier. The pump power must be higher than the lasing threshold of the laser.The pump energy is usually provided in the form of light or electric current, but more exotic sources have been used, such as chemical or nuclear reactions.