Fiberoptic Sample Holder (FOSH): Characteristics and Uses APPLICATION NOTE 1056-201
... the bundle to the rod, a slight difference in bundle and rod length, or the reflectivity of the light at each surface interface. They also do not include the effects of cooling on the parameters of the fiberoptic materials. If exact attenuation values are required, the user must determine them for h ...
... the bundle to the rod, a slight difference in bundle and rod length, or the reflectivity of the light at each surface interface. They also do not include the effects of cooling on the parameters of the fiberoptic materials. If exact attenuation values are required, the user must determine them for h ...
Probing dipole-forbidden autoionizing states by isolated attosecond
... transition strengths between the quantum states. A large amount of data has been obtained and recorded by synchrotron radiations up to the x-ray regimes. Due to the limited brilliance of the light sources, or the limited intensity of the fields, normally only single-photon processes are considered i ...
... transition strengths between the quantum states. A large amount of data has been obtained and recorded by synchrotron radiations up to the x-ray regimes. Due to the limited brilliance of the light sources, or the limited intensity of the fields, normally only single-photon processes are considered i ...
Partial fulfillment of DiVincenzo criteria using manipulation of Rb
... detailed experimental setup is reported by Pearman et al [6] (for simplicity reasons both lasers could be tuned using DF-SAS, or PS, however, both DF-SAS and PS have been used due to other ongoing experiments, where these two stabilization method were part of the setup). This second laser is produce ...
... detailed experimental setup is reported by Pearman et al [6] (for simplicity reasons both lasers could be tuned using DF-SAS, or PS, however, both DF-SAS and PS have been used due to other ongoing experiments, where these two stabilization method were part of the setup). This second laser is produce ...
Wir schaffen Wissen – heute für morgen Paul Scherrer Institut Carlo Vicario
... Simulations indicate the depression in the center is due to diffraction effect by iris Seite 23 ...
... Simulations indicate the depression in the center is due to diffraction effect by iris Seite 23 ...
Squeezed Light - University of New Mexico
... nonlinear medium with a probe eld entering at an arbitrary angle to the pump waves and yield a fourth (output) wave. The latter is proportional to the complex conjugate of the probe wave. This possibility of generating phase conjugate waves has many applications in adaptive optics. Four-wave mixing ...
... nonlinear medium with a probe eld entering at an arbitrary angle to the pump waves and yield a fourth (output) wave. The latter is proportional to the complex conjugate of the probe wave. This possibility of generating phase conjugate waves has many applications in adaptive optics. Four-wave mixing ...
Efficient positronium laser excitation for antihydrogen production in a
... A commercial Dye–prism laser (optically pumped by the second harmonic of a Q–switched Nd:YAG laser) coupled to a third harmonic generator can provide the 205 nm photons for the first transition. The laser for the second transition is yet to be developed and it is being proposed for the AEGIS experi ...
... A commercial Dye–prism laser (optically pumped by the second harmonic of a Q–switched Nd:YAG laser) coupled to a third harmonic generator can provide the 205 nm photons for the first transition. The laser for the second transition is yet to be developed and it is being proposed for the AEGIS experi ...
Mode Structure of Active Resonators
... and the dispersion of the active medium(31. These interactions are, in most configurations, axially symmetric due to either the excitation mechanism or the mutual interaction of medium and axially symmetric field. For example, the propagation Gaussian a of beam through a homogeneously excitated acti ...
... and the dispersion of the active medium(31. These interactions are, in most configurations, axially symmetric due to either the excitation mechanism or the mutual interaction of medium and axially symmetric field. For example, the propagation Gaussian a of beam through a homogeneously excitated acti ...
Technical Note LIGO- T030087-00-R x/xx/99
... Equation 2.3 in Ryan Lawrence’s thesis estimates the thermally induced radius of curvature (ROC) of the ITM HR face, but does so only for bulk absorption, whereas in fused silica the coating is dominant. I built a FEMLAB model of the fused silica ITM in Advanced LIGO using the heating estimate above ...
... Equation 2.3 in Ryan Lawrence’s thesis estimates the thermally induced radius of curvature (ROC) of the ITM HR face, but does so only for bulk absorption, whereas in fused silica the coating is dominant. I built a FEMLAB model of the fused silica ITM in Advanced LIGO using the heating estimate above ...
Characterizing a single photon detector
... device at 1MHz. We output two TTL pulses, one to trigger our pulser and another to trigger our photon counter. 2.4 Pulser Our pulse generator is an Avtec AVM‐2‐C. We can get pulses from 600mV to 15V with widths of 500ps to 1.5ns. The pulser was 1.5ns wide and 600m ...
... device at 1MHz. We output two TTL pulses, one to trigger our pulser and another to trigger our photon counter. 2.4 Pulser Our pulse generator is an Avtec AVM‐2‐C. We can get pulses from 600mV to 15V with widths of 500ps to 1.5ns. The pulser was 1.5ns wide and 600m ...
Laser intensity induced transparency in atom
... In order to demonstrate the laser intensity induced transparency, a specific frequency was chosen, at which the PA laser intensity was set to 300 W/cm2, such that the resonant frequency is not influenced by the variation of PA laser intensity. The binding energy of excited molecule for different vib ...
... In order to demonstrate the laser intensity induced transparency, a specific frequency was chosen, at which the PA laser intensity was set to 300 W/cm2, such that the resonant frequency is not influenced by the variation of PA laser intensity. The binding energy of excited molecule for different vib ...
2 µm Laser Sources and Their Possible Applications
... can be directly excited with commercially available laser diodes around 800 nm. To achieve efficient laser operation at 2.1 µm holmium can only be excited directly around 1.9 µm or by exploiting an energy transfer process from thulium or ytterbium. 2.1 Thulium lasers systems With thulium doped cryst ...
... can be directly excited with commercially available laser diodes around 800 nm. To achieve efficient laser operation at 2.1 µm holmium can only be excited directly around 1.9 µm or by exploiting an energy transfer process from thulium or ytterbium. 2.1 Thulium lasers systems With thulium doped cryst ...
Manual for Diode Laser Spectroscopy
... on the rear of the control panel using the potentiometer dial. Laser current and diffraction grating angle may be changed using the potentiometer knobs on the control panel face as indicated in fig. 2. The laser current can be monitored by multimeter from the laser current monitor on the front panel ...
... on the rear of the control panel using the potentiometer dial. Laser current and diffraction grating angle may be changed using the potentiometer knobs on the control panel face as indicated in fig. 2. The laser current can be monitored by multimeter from the laser current monitor on the front panel ...
population inversion - Széchenyi István Egyetem
... lifetime above the upper laser level: pumping from the pumping level the electrons relax to the upper laser level, which has longer spontaneous lifetime electrons accumulate at the upper laser level ESM Lille 2007 ...
... lifetime above the upper laser level: pumping from the pumping level the electrons relax to the upper laser level, which has longer spontaneous lifetime electrons accumulate at the upper laser level ESM Lille 2007 ...
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 ...
Design and analysis of a low-threshold polymer circular-grating distributed-feedback laser
... pumped is a continuing challenge. In working toward that aim, it is of interest to use the unique mechanical and optical properties of polymer materials to design microstructures to reduce other losses in the device as much as possible. Soft lithographic techniques, such as contact imprinting,3 are ...
... pumped is a continuing challenge. In working toward that aim, it is of interest to use the unique mechanical and optical properties of polymer materials to design microstructures to reduce other losses in the device as much as possible. Soft lithographic techniques, such as contact imprinting,3 are ...
Get PDF - OSA Publishing
... resonantly-enhanced four-wave mixing in atomic gases. Here, a first laser pulse drives a twophoton transition, which serves to resonantly enhance a sum or difference frequency mixing process with a second laser pulse. However, it is not obvious, that resonance-enhancement also works for (higher) har ...
... resonantly-enhanced four-wave mixing in atomic gases. Here, a first laser pulse drives a twophoton transition, which serves to resonantly enhance a sum or difference frequency mixing process with a second laser pulse. However, it is not obvious, that resonance-enhancement also works for (higher) har ...
Attosecond lighthouse driven by sub-two
... earlier beamlets is smaller than that between the later beamlets. This variation is due to the rapidly varying intensity envelope of the ultrashort laser pulse. When the intensity rises in time, the time spacing between adjacent XUV emissions is shorter than one half-optical cycle, while it is longe ...
... earlier beamlets is smaller than that between the later beamlets. This variation is due to the rapidly varying intensity envelope of the ultrashort laser pulse. When the intensity rises in time, the time spacing between adjacent XUV emissions is shorter than one half-optical cycle, while it is longe ...
Optical Fiber Amplifiers
... connectors are clean. For that purpose, we use a Fiberscope in the Fiber Optics Lab in the Whitaker building. ...
... connectors are clean. For that purpose, we use a Fiberscope in the Fiber Optics Lab in the Whitaker building. ...
Laser Cooling of Atoms, Ions, or Molecules by Coherent Scattering
... matching the transition frequencies are not readily available, and the simultaneous cooling of different isotopes. When interpreted in the time domain, the cooling arises from the time-delayed adjustment of the optical potential to the atomic motion [9]. Consider an incident light field tuned to the ...
... matching the transition frequencies are not readily available, and the simultaneous cooling of different isotopes. When interpreted in the time domain, the cooling arises from the time-delayed adjustment of the optical potential to the atomic motion [9]. Consider an incident light field tuned to the ...
Optical Third-Harmonic Generation in Alkali Metal Vapors
... power and energydensities are higher in gases and &(I, Y) = $[&(r)e-"' &*(r)e"'], ...
... power and energydensities are higher in gases and &(I, Y) = $[&(r)e-"' &*(r)e"'], ...
Fabrication and Application of Phase only Holograms for High
... 4. Beam shaping with binary phase only holograms Although the ability of ITO coatings to withstand high cw power levels is crucial for the envisioned applications it is equally important to evaluate the diffraction efficiency as well as beam shaping capabilities of such holograms. The reported diffr ...
... 4. Beam shaping with binary phase only holograms Although the ability of ITO coatings to withstand high cw power levels is crucial for the envisioned applications it is equally important to evaluate the diffraction efficiency as well as beam shaping capabilities of such holograms. The reported diffr ...
Laser phase and frequency stabilization using an optical resonator
... aspect of its operation. We consider the same optical setup of Fig. 1 that was discussed before. Now for simplicity we will focus on rapid variations of the laser input frequency (phase), where by rapid we mean fast enough that the resonator's internal field is not in equilibrium with its input. One ...
... aspect of its operation. We consider the same optical setup of Fig. 1 that was discussed before. Now for simplicity we will focus on rapid variations of the laser input frequency (phase), where by rapid we mean fast enough that the resonator's internal field is not in equilibrium with its input. One ...
Population inversion in optically pumped asymmetric quantum well
... always going to be very poor ~approx. 1026 ), but is over an order of magnitude smaller at 2.8 THz ~the lowest emission frequency considered! than at 12.1 THz ~the highest frequency considered!. The lifetime ratios for T52 K are not shown in Fig. 3. These are predicted to be very high for all struct ...
... always going to be very poor ~approx. 1026 ), but is over an order of magnitude smaller at 2.8 THz ~the lowest emission frequency considered! than at 12.1 THz ~the highest frequency considered!. The lifetime ratios for T52 K are not shown in Fig. 3. These are predicted to be very high for all struct ...
A compact laser head with high-frequency stability for Rb atomic
... drifts. The laser should have low AM and FM noise levels around RIN⬇ 3 ⫻ 10−13 Hz−1 and S f ⬇ 108 Hz2 / Hz, respectively, at low frequencies 共100–300 Hz兲 and exhibit excellent frequency stability better than 5 ⫻ 10−11−1/2 up to = 1000 s integration time and 艋2 ⫻ 10−12 at medium-term time scales f ...
... drifts. The laser should have low AM and FM noise levels around RIN⬇ 3 ⫻ 10−13 Hz−1 and S f ⬇ 108 Hz2 / Hz, respectively, at low frequencies 共100–300 Hz兲 and exhibit excellent frequency stability better than 5 ⫻ 10−11−1/2 up to = 1000 s integration time and 艋2 ⫻ 10−12 at medium-term time scales f ...
6341 Notes 10 Dielectric Rod and Wire
... Two types of fiber-optic guides: 1) Single-mode fiber This fiber carries a single mode (HE11). This requires the fiber diameter to be on the order of a wavelength. It has less loss, dispersion, and signal distortion. It is often used for long-distances (e.g., greater than 1 km). The diameter is typi ...
... Two types of fiber-optic guides: 1) Single-mode fiber This fiber carries a single mode (HE11). This requires the fiber diameter to be on the order of a wavelength. It has less loss, dispersion, and signal distortion. It is often used for long-distances (e.g., greater than 1 km). The diameter is typi ...
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.