Soft-x-ray interferometer for single-shot laser linewidth measurements
... experiments were conducted in the near-IR region of the spectrum by use of a vertical-cavity surfaceemitting laser diode,14 which could be adjusted to emit in two modes of similar amplitude. Using standard 1-in. s2.54 cmd gratings of 600 groovesymm made it possible to measure the spectral separation ...
... experiments were conducted in the near-IR region of the spectrum by use of a vertical-cavity surfaceemitting laser diode,14 which could be adjusted to emit in two modes of similar amplitude. Using standard 1-in. s2.54 cmd gratings of 600 groovesymm made it possible to measure the spectral separation ...
Results from an Extremely Sensitive Rayleigh
... added to the atmospheric mixture. These particles, such as aerosols (dust), are much bigger than N2 and O2 molecules. Incident light interacting with these particles results in a different type of scattering called Mie scatter. Mie scatter is characterized by scatterers that have sizes either on the ...
... added to the atmospheric mixture. These particles, such as aerosols (dust), are much bigger than N2 and O2 molecules. Incident light interacting with these particles results in a different type of scattering called Mie scatter. Mie scatter is characterized by scatterers that have sizes either on the ...
development of SPR sensors
... Sensitive fiber and waveguide-SPR approach Integrated multilayer and distributed Bragg reflector for improved sensitivity Imaging SPR ...
... Sensitive fiber and waveguide-SPR approach Integrated multilayer and distributed Bragg reflector for improved sensitivity Imaging SPR ...
Molecular-Fluorescence Enhancement via Blue
... AuNRs and MC molecules is determined by the dephasing time (T2), which is given by4,15,25 ...
... AuNRs and MC molecules is determined by the dephasing time (T2), which is given by4,15,25 ...
Laser ablation of organic materials for discrimination of
... 2.1 Experimental setup In our experiments, Nylon 6,6 was used as a typical organic sample because it contains native CN molecular radicals. For a biological sample, native CN radicals can be used as a marker for its speciation thanks to its strong emission around 388 nm. However, in a LIBS spectrum ...
... 2.1 Experimental setup In our experiments, Nylon 6,6 was used as a typical organic sample because it contains native CN molecular radicals. For a biological sample, native CN radicals can be used as a marker for its speciation thanks to its strong emission around 388 nm. However, in a LIBS spectrum ...
Extending the Effective Ranging Depth of Spectral Domain Optical
... domain imaging, OFDI). For both types of the FDOCT, the achievable imaging depth range is an important performance indicator. In some situations, a long ranging depth is highly desirable. One such example is for the endoscopic application where the distance between the distal end of the endoscopic p ...
... domain imaging, OFDI). For both types of the FDOCT, the achievable imaging depth range is an important performance indicator. In some situations, a long ranging depth is highly desirable. One such example is for the endoscopic application where the distance between the distal end of the endoscopic p ...
Using the Spectrophotometer
... Underlying Science Basic principles of spectrophotometry An absorbance spectrophotometer is an instrument that measures the fraction of the incident light transmitted through a solution. In other words, it is used to measure the amount of light that passes through a sample material and, by compariso ...
... Underlying Science Basic principles of spectrophotometry An absorbance spectrophotometer is an instrument that measures the fraction of the incident light transmitted through a solution. In other words, it is used to measure the amount of light that passes through a sample material and, by compariso ...
TEM - Department of Mechanical Engineering
... To increase the mean free path of the electron gas interaction, a standard TEM is evacuated to low pressures, typically on the order of 10−4 Pa. The need for this is twofold: first the allowance for the voltage difference between the cathode and the ground without generating an arc, and secondly to ...
... To increase the mean free path of the electron gas interaction, a standard TEM is evacuated to low pressures, typically on the order of 10−4 Pa. The need for this is twofold: first the allowance for the voltage difference between the cathode and the ground without generating an arc, and secondly to ...
Laser Systems for Inverse Compton Scattering Gamma
... sufficient to be used as a photocathode drive pulse directly, but also compatible with both Serafini-Luiten and the “beercan” pulse shaping. Diode-pumped Yb:fiber laser technology can be the most elegant solution to this problem, which is arbitrarily scalable in repetition rate when sufficiently pow ...
... sufficient to be used as a photocathode drive pulse directly, but also compatible with both Serafini-Luiten and the “beercan” pulse shaping. Diode-pumped Yb:fiber laser technology can be the most elegant solution to this problem, which is arbitrarily scalable in repetition rate when sufficiently pow ...
optical coherence tomography
... Tomography is based on the reconstruction of cross-sectional images of an object from its projections. While the basic mathematics was described as early as 1917 by J. Radon,1 the implementation of this principle in medical imaging took a rather long time and led to a great number of configurations, ...
... Tomography is based on the reconstruction of cross-sectional images of an object from its projections. While the basic mathematics was described as early as 1917 by J. Radon,1 the implementation of this principle in medical imaging took a rather long time and led to a great number of configurations, ...
Design and analysis of a low-threshold polymer circular-grating distributed-feedback laser
... and emissive sites leads to a large gap between absorption and emission peaks. For this reason, losses through reabsorption in polymer lasers can normally be assumed to be negligible. Experimental research performed at St. Andrews has shown that MEH-PPV exhibits strong absorption around typical pump ...
... and emissive sites leads to a large gap between absorption and emission peaks. For this reason, losses through reabsorption in polymer lasers can normally be assumed to be negligible. Experimental research performed at St. Andrews has shown that MEH-PPV exhibits strong absorption around typical pump ...
Aberration-free three-dimensional multiphoton imaging of neuronal
... z-axis are limited to approximately 20 Hz with conventional imaging approaches (7). This is due to the mechanical inertia of the objective lens and specimen during refocusing. Higher-speed refocusing was recently achieved using a carefully designed electrically tunable lens (8), but at the expense o ...
... z-axis are limited to approximately 20 Hz with conventional imaging approaches (7). This is due to the mechanical inertia of the objective lens and specimen during refocusing. Higher-speed refocusing was recently achieved using a carefully designed electrically tunable lens (8), but at the expense o ...
Dark Resonances From Optical Pumping to Cold Atoms and
... Note finally that the dark resonance exists only if the two laser fields are coherent. If their phases changes in a random way, the phase difference between the two absorption amplitudes appearing in Eq. (5) changes also in a random way so that the destructive interference cannot hold for all times. ...
... Note finally that the dark resonance exists only if the two laser fields are coherent. If their phases changes in a random way, the phase difference between the two absorption amplitudes appearing in Eq. (5) changes also in a random way so that the destructive interference cannot hold for all times. ...
III.Principle Of Polarization-Insensitive Tunable Wavelength
... transparent to both modulation format and bit rate; 3) it induces negligible signal degradation since there is little chirp or added noise; and 4) the optical fiber itself is low cost, low loss, and seamlessly compatible with the transmission fiber [4]. In particular, four-wave mixing (FWM) is a pro ...
... transparent to both modulation format and bit rate; 3) it induces negligible signal degradation since there is little chirp or added noise; and 4) the optical fiber itself is low cost, low loss, and seamlessly compatible with the transmission fiber [4]. In particular, four-wave mixing (FWM) is a pro ...
Fiber-optic ring-down spectroscopy using a tunable picosecond gain-switched diode laser Applied Physics B
... Therefore, it appears worthwhile to test the performance of gain-switched diode lasers in CRD applications. Gainswitching is a simple and effective technique of generating picosecond laser pulses from inexpensive commercial diode lasers [14, 15]. Gain-switched diode lasers are commonly used in fluor ...
... Therefore, it appears worthwhile to test the performance of gain-switched diode lasers in CRD applications. Gainswitching is a simple and effective technique of generating picosecond laser pulses from inexpensive commercial diode lasers [14, 15]. Gain-switched diode lasers are commonly used in fluor ...
Entangling Photons via Four-Wave Mixing in a Rubidium Vapor Cell
... experienced occurred at 794.9805 nm which is −0.004827 nm, or 2.2 GHz, from the F = 2 to F’ = 1 transition (figures 9c and 9d). Amplitude dependence on laser power is also shown (figure 10). ...
... experienced occurred at 794.9805 nm which is −0.004827 nm, or 2.2 GHz, from the F = 2 to F’ = 1 transition (figures 9c and 9d). Amplitude dependence on laser power is also shown (figure 10). ...
View accepted manuscript: Metastable triply charged diatomic
... Although diatomic trications have been produced before [7,16], they have not been produced by optical means or in large quantities. Optical production is important since it opens the possibility for precision spectroscopy on this new class of simple molecules. The model that allows us to discuss the ...
... Although diatomic trications have been produced before [7,16], they have not been produced by optical means or in large quantities. Optical production is important since it opens the possibility for precision spectroscopy on this new class of simple molecules. The model that allows us to discuss the ...
r 5 fs hinner ljuset färdas 1
... laser radiation. Make sure that the laser beam is blocked (i.e. by a power meter)! The instructor will show you how to modelock the laser. What happens to the output power as the laser is modelocked? Why? The curved mirror CM2 focus the spontaneous emission from the crystal. Measure the distance fro ...
... laser radiation. Make sure that the laser beam is blocked (i.e. by a power meter)! The instructor will show you how to modelock the laser. What happens to the output power as the laser is modelocked? Why? The curved mirror CM2 focus the spontaneous emission from the crystal. Measure the distance fro ...
A day in the life of a Laser scientist
... • Inventing stuff and entrepeneurship: We invented a new type of laser and in 2004 formed a company to commercialise it. • Commercialising research: Finding ways for some of the great research that we do at Macquarie to be taken up by companies and ultimately benefit our community. ...
... • Inventing stuff and entrepeneurship: We invented a new type of laser and in 2004 formed a company to commercialise it. • Commercialising research: Finding ways for some of the great research that we do at Macquarie to be taken up by companies and ultimately benefit our community. ...
P - University of South Florida
... technique that is suitable for high-resolution cross-sectional imaging, which uses a MichelsonType interferometer and is designed to detect a heterodyne signal in the interference of the back-scattered light from the sample point and the reference mirror. The three-dimensional image is reconstructed ...
... technique that is suitable for high-resolution cross-sectional imaging, which uses a MichelsonType interferometer and is designed to detect a heterodyne signal in the interference of the back-scattered light from the sample point and the reference mirror. The three-dimensional image is reconstructed ...
Distributed Rayleigh scatter dynamic strain sensing above
... compared to a reference to deduce a shift in the optical spectrum is that the fiber under test remains nearly stationary for the duration of the laser scan. Movement of the fiber during the laser scan can be detrimental to measurement fidelity and is often the limiting factor in long-range and dynam ...
... compared to a reference to deduce a shift in the optical spectrum is that the fiber under test remains nearly stationary for the duration of the laser scan. Movement of the fiber during the laser scan can be detrimental to measurement fidelity and is often the limiting factor in long-range and dynam ...
ХИМИЯ НА АНГЛИЙСКОМ ЯЗЫКЕ
... developed. The analysis of a sample containing 40.0 parts per thousand (ppt) 2chloroethylsulfide yielded the following results: 43.3; 34.8; 31.9; 37.8; 34.4; 31.9; 42.1; 33.6; 35.3. Determine whether there is a significant difference between the experimental mean and the expected value at α = 0.05. ...
... developed. The analysis of a sample containing 40.0 parts per thousand (ppt) 2chloroethylsulfide yielded the following results: 43.3; 34.8; 31.9; 37.8; 34.4; 31.9; 42.1; 33.6; 35.3. Determine whether there is a significant difference between the experimental mean and the expected value at α = 0.05. ...
A Study on Rayleigh Backscattering Noise in Single Fiber
... system. Bidirectional transmission is typically implemented in a loopback configuration in which the seed light and upstream signal operate at the same wavelength and travel in opposite directions within the same fiber. In our simple experiments, we used different fiber lengths to represent the diff ...
... system. Bidirectional transmission is typically implemented in a loopback configuration in which the seed light and upstream signal operate at the same wavelength and travel in opposite directions within the same fiber. In our simple experiments, we used different fiber lengths to represent the diff ...
optical devices
... Mitsubishi Electric Corporation without notice due to product improvements or other reasons. It is therefore recommended that customers contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor for the latest product information before purchasing a product ...
... Mitsubishi Electric Corporation without notice due to product improvements or other reasons. It is therefore recommended that customers contact Mitsubishi Electric Corporation or an authorized Mitsubishi Semiconductor product distributor for the latest product information before purchasing a product ...
Optical Studies of Materials for Spectral Design Christina ˚ Akerlind
... In this thesis the camouflage properties in the VIS and IR are in focus. The corresponding electromagnetic radiation in the optical (VIS-IR) range, will be referred to as ”light” below. Many of the fundamental properties are however the same for other wavelength regions. There are also other needs t ...
... In this thesis the camouflage properties in the VIS and IR are in focus. The corresponding electromagnetic radiation in the optical (VIS-IR) range, will be referred to as ”light” below. Many of the fundamental properties are however the same for other wavelength regions. There are also other needs t ...