Optical forces through guided light deflections
... the optimization of light-matter interaction. Such force-optimized structures can, e.g. replace beads in so-called “optical grippers” for indirect cell handling [10], and can also be used as optical trapping handles in optically-steered microtools [11, 12] and optical micro-assembly [13]. Optimized ...
... the optimization of light-matter interaction. Such force-optimized structures can, e.g. replace beads in so-called “optical grippers” for indirect cell handling [10], and can also be used as optical trapping handles in optically-steered microtools [11, 12] and optical micro-assembly [13]. Optimized ...
Semiconductor microcavities: half light, half matter
... have a higher initial momentum if they are to build up resonantly. Constructive interference therefore occurs for photons of ever-shorter wavelength as the angle at which they enter the sample increases. The bottom line is that cavities can emit light over a range of wavelengths. A plot of the reson ...
... have a higher initial momentum if they are to build up resonantly. Constructive interference therefore occurs for photons of ever-shorter wavelength as the angle at which they enter the sample increases. The bottom line is that cavities can emit light over a range of wavelengths. A plot of the reson ...
Polarization effects and the calibration of a donut beam axial optical
... subtle axial forces without a need to move either the stage or the laser focus, giving rise to a unique, new type of axial optical tweezers. Another application of our results may be to aid in combining single-molecule fluorescence with optical tweezers. Single-molecule fluorescence can yield direct ...
... subtle axial forces without a need to move either the stage or the laser focus, giving rise to a unique, new type of axial optical tweezers. Another application of our results may be to aid in combining single-molecule fluorescence with optical tweezers. Single-molecule fluorescence can yield direct ...
The Atomic, Molecular and Optical Science
... X-ray spectral regime. In a first proof-of-principle experiment at the AMO instrument the intense LCLS pulses have been used to drive an atomic inner-shell laser in a dense gas of neon (Rohringer et al., 2012). The inner-shell vacancies created in the neon 1s level upon X-ray absorption decay domina ...
... X-ray spectral regime. In a first proof-of-principle experiment at the AMO instrument the intense LCLS pulses have been used to drive an atomic inner-shell laser in a dense gas of neon (Rohringer et al., 2012). The inner-shell vacancies created in the neon 1s level upon X-ray absorption decay domina ...
Local-oscillator noise coupling in balanced homodyne readout for
... shot noise limited. This is usually not a problem in tabletop experiments in quantum optics where typical signals occur at sideband frequencies of several MHz, well away from technical noise sources such as the laser’s relaxation oscillation. For signals in the audio band, however, it is much more d ...
... shot noise limited. This is usually not a problem in tabletop experiments in quantum optics where typical signals occur at sideband frequencies of several MHz, well away from technical noise sources such as the laser’s relaxation oscillation. For signals in the audio band, however, it is much more d ...
High-temperature ultrafast polariton parametric amplification in
... Cavity polaritons, the elementary optical excitations of semiconductor microcavities, may be understood as a superposition of excitons and cavity photons1. Owing to their composite nature, these bosonic particles have a distinct optical response, at the same time very fast and highly nonlinear. Very ...
... Cavity polaritons, the elementary optical excitations of semiconductor microcavities, may be understood as a superposition of excitons and cavity photons1. Owing to their composite nature, these bosonic particles have a distinct optical response, at the same time very fast and highly nonlinear. Very ...
Chapter 2 Femtosecond Laser Pulses - diss.fu
... ions occur over a broad range of wavelengths from 400 to 600 nm (see Figure 2.1). The emission band extends from wavelengths as short as 600 nm to wavelengths greater than 1 µm. This makes them suitable materials in constructing laser active media for generating femtosecond pulses. The long waveleng ...
... ions occur over a broad range of wavelengths from 400 to 600 nm (see Figure 2.1). The emission band extends from wavelengths as short as 600 nm to wavelengths greater than 1 µm. This makes them suitable materials in constructing laser active media for generating femtosecond pulses. The long waveleng ...
The Spectrum Analyzer and The Mode Structure
... laser light consists of discrete frequency components. We can, however, determine how close the laser light may be to a single frequency using a Fabry-Perot Interferometer.1 The Fabry-Perot Interferometer consists of a pair of mirrors, with inner surfaces highly reflective to laser light, whose sepa ...
... laser light consists of discrete frequency components. We can, however, determine how close the laser light may be to a single frequency using a Fabry-Perot Interferometer.1 The Fabry-Perot Interferometer consists of a pair of mirrors, with inner surfaces highly reflective to laser light, whose sepa ...
Optical amplifier
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics.There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification.