Light at work: The use of optical forces for particle manipulation
... the direction of the incident beam propagation due to the scattering force coming from the radiation pressure of the light. At the same time, the particle is attracted toward the location of the highest optical intensity (see Fig. 1A). In contrast, if the particle’s refractive index is lower relativ ...
... the direction of the incident beam propagation due to the scattering force coming from the radiation pressure of the light. At the same time, the particle is attracted toward the location of the highest optical intensity (see Fig. 1A). In contrast, if the particle’s refractive index is lower relativ ...
Optically Pumped Solid-State Lasers
... when doped into a large number of host crystals or glasses. In a separate class of solid-state lasers — the so-called stoichiometric lasers the active ion is not an impurity dopant but is an intrinsic part of the lattice. These lasers have not to date achieved significant importance and we will not ...
... when doped into a large number of host crystals or glasses. In a separate class of solid-state lasers — the so-called stoichiometric lasers the active ion is not an impurity dopant but is an intrinsic part of the lattice. These lasers have not to date achieved significant importance and we will not ...
Spectroscopy – I. Gratings and Prisms
... the other – and to do this with accurately maintained shape. “Blazing” allows the grating efficiency to be peaked at a selected wavelength region. Nowadays, a number of different techniques are available – such as electron-beam etching and the production of holographic and “volume-phase” holographic ...
... the other – and to do this with accurately maintained shape. “Blazing” allows the grating efficiency to be peaked at a selected wavelength region. Nowadays, a number of different techniques are available – such as electron-beam etching and the production of holographic and “volume-phase” holographic ...
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... could also prove deadly. To control a car going 1 1 0 km/h (70 mi/h), a driver needs all the wheels on the ground. Bumps in the road lift the wheels off the ground and rob the driver of control. A good solution is to fit the car with springs at each wheel. The springs absorb energy as the wheels ris ...
... could also prove deadly. To control a car going 1 1 0 km/h (70 mi/h), a driver needs all the wheels on the ground. Bumps in the road lift the wheels off the ground and rob the driver of control. A good solution is to fit the car with springs at each wheel. The springs absorb energy as the wheels ris ...
Optical Fiber Sensors Guide
... is referred to as the color-center model). Their work explained a photo-induced index change of almost 10 at visible wavelengths. However, experimental measurements show much larger index changes. To explain the observed large index changes, Sceats et al. [4] proposed thermoelastic stress relaxation ...
... is referred to as the color-center model). Their work explained a photo-induced index change of almost 10 at visible wavelengths. However, experimental measurements show much larger index changes. To explain the observed large index changes, Sceats et al. [4] proposed thermoelastic stress relaxation ...
Focal shift of silicon microlen array in mid
... The focal shift of the silicon microlens in the mid-infrared regime was numerical modeled and experimentally verified. We found that traditional methods provide limited validity in predicting the focal length of MLAs with small critical size and in long wavelength bands. As a result rigorous electro ...
... The focal shift of the silicon microlens in the mid-infrared regime was numerical modeled and experimentally verified. We found that traditional methods provide limited validity in predicting the focal length of MLAs with small critical size and in long wavelength bands. As a result rigorous electro ...
Quantitative spectroscopic photoacoustic imaging
... This section will start with a brief description of the photoacoustic effect: how PA waves are generated. The term photoacoustic imaging is used to describe a number of related imaging modes that exploit this effect to image objects with heterogeneous optical absorption. As these PA images are a pre ...
... This section will start with a brief description of the photoacoustic effect: how PA waves are generated. The term photoacoustic imaging is used to describe a number of related imaging modes that exploit this effect to image objects with heterogeneous optical absorption. As these PA images are a pre ...
