A light scattering study of non equilibrium fluctuations
... signal Is (q). Such a static low angle scattering analysis has already been described in detail elsewhere15, 16, 39 and we will only discuss it here briefly. First, we point out that measured static signal is actually convoluted by the imaging transfer function T(q), which depends on the optical set ...
... signal Is (q). Such a static low angle scattering analysis has already been described in detail elsewhere15, 16, 39 and we will only discuss it here briefly. First, we point out that measured static signal is actually convoluted by the imaging transfer function T(q), which depends on the optical set ...
TOLERANCING OPTICAL SYSTEMS
... ΔΦi is effect from a single parameter having an error equal to its tolerance 4. Calculate sensitivities After the merit function defined, the sensitivity of each single parameter could be calculated. A small perturbation Δxi should be applied (0.001 for index, 0.01 mm for thickness/diameter/etc.) to ...
... ΔΦi is effect from a single parameter having an error equal to its tolerance 4. Calculate sensitivities After the merit function defined, the sensitivity of each single parameter could be calculated. A small perturbation Δxi should be applied (0.001 for index, 0.01 mm for thickness/diameter/etc.) to ...
Light Microscopy Excerpt from Chapter 1
... Although illumination of the specimen is important, the microscope objective is the single most critical component of the microscope. Its properties largely determine depth of focus, resolution, and contrast of the specimen. The eyepiece and/or other so-called transfer optical devices simply magnify ...
... Although illumination of the specimen is important, the microscope objective is the single most critical component of the microscope. Its properties largely determine depth of focus, resolution, and contrast of the specimen. The eyepiece and/or other so-called transfer optical devices simply magnify ...
Relativistic Channeling of a Picosecond Laser Pulse in a Near
... “relativistic valley” has formed, about 20 l wide. At its center, a deeper density depression is produced by both electron expulsion and relativistic effects, and most of the light is guided into it. Time-integrated spectra of the backscattered second harmonic radiation were also collected. The main ...
... “relativistic valley” has formed, about 20 l wide. At its center, a deeper density depression is produced by both electron expulsion and relativistic effects, and most of the light is guided into it. Time-integrated spectra of the backscattered second harmonic radiation were also collected. The main ...
HOLOGRAPHY, 1948-1971
... which as good as nothing remains of the disturbance caused by the second image, can be obtained with a lens so bad that its definition is at least 10 times worse than the resolution which one wants to obtain. Such a very bad lens was obtained using a microscope objective the wrong way round, and usi ...
... which as good as nothing remains of the disturbance caused by the second image, can be obtained with a lens so bad that its definition is at least 10 times worse than the resolution which one wants to obtain. Such a very bad lens was obtained using a microscope objective the wrong way round, and usi ...
A high resolution ion microscope for cold atoms
... on a camera. However, the cloud is destroyed by this method. The destruction can be suppressed when using the related method of phase contrast imaging, allowing to image the same cloud several times [6], yet at a reduced contrast. For non-destructive imaging of dilute samples with single atom sensit ...
... on a camera. However, the cloud is destroyed by this method. The destruction can be suppressed when using the related method of phase contrast imaging, allowing to image the same cloud several times [6], yet at a reduced contrast. For non-destructive imaging of dilute samples with single atom sensit ...
Performance of fourier domain vs. time domain optical coherence
... the ADC will always be chosen such that the associated noise level is much smaller than the receiver Johnson noise. Another important noise source is Flicker or 1/f noise. Due to heterodyne signal detection with frequencies usually well above 10 kHz 1/f noise can be neglected in the case of time dom ...
... the ADC will always be chosen such that the associated noise level is much smaller than the receiver Johnson noise. Another important noise source is Flicker or 1/f noise. Due to heterodyne signal detection with frequencies usually well above 10 kHz 1/f noise can be neglected in the case of time dom ...
Introduction to Inverse Problems
... – algorithms that transform representations – e.g. a radio telescope measures the Fourier transform of the source (representation #1); inverse Fourier transforming leads to a representation in the “native” object coordinates (representation #2); further processing such as iterative and nonlinear alg ...
... – algorithms that transform representations – e.g. a radio telescope measures the Fourier transform of the source (representation #1); inverse Fourier transforming leads to a representation in the “native” object coordinates (representation #2); further processing such as iterative and nonlinear alg ...
Overlay Network Andreas Holmqvist, Alexander Kronstrand Information Coding
... with different techniques, some of them are fiber loops, slowing light using meta-materials, semiconductors and slowing light using photonic crystals.[7] Conversion of communication signals from light to electricity is a time consuming task, and it scales poorly with high optical bandwidths, so a wo ...
... with different techniques, some of them are fiber loops, slowing light using meta-materials, semiconductors and slowing light using photonic crystals.[7] Conversion of communication signals from light to electricity is a time consuming task, and it scales poorly with high optical bandwidths, so a wo ...
Local thermal resonance control of GaInP photonic crystal
... (CROWs), which are very promising for slow light applications4 and the study of light localization.5 Various fabrication imperfections can cause a disorder in a CROW structure which leads to a detuning of cavities from the intended resonance and reduces the waveguide throughput and bandwidth. Tuning ...
... (CROWs), which are very promising for slow light applications4 and the study of light localization.5 Various fabrication imperfections can cause a disorder in a CROW structure which leads to a detuning of cavities from the intended resonance and reduces the waveguide throughput and bandwidth. Tuning ...
Optimized back-focal-plane interferometry directly measures forces
... variables, found a linear relationship between stiffness and detector sensitivity (equivalent to our Eq. (6) and Fig. 3, below). More recently, by means of an experimental setup consisting of two traps of different stiffness simultaneously trapping the same sample, Jahnel et al. [19] observed that t ...
... variables, found a linear relationship between stiffness and detector sensitivity (equivalent to our Eq. (6) and Fig. 3, below). More recently, by means of an experimental setup consisting of two traps of different stiffness simultaneously trapping the same sample, Jahnel et al. [19] observed that t ...
How can the reflections of light on the surface of
... In 1816, André-Marie Ampère finally released the wave theory from its deadlocked position by saying that polarization can be explained if it is assumed that light is a transverse wave instead of a longitudinal wave. It was a little weird to propose this at the time. Then, it was believed that light ...
... In 1816, André-Marie Ampère finally released the wave theory from its deadlocked position by saying that polarization can be explained if it is assumed that light is a transverse wave instead of a longitudinal wave. It was a little weird to propose this at the time. Then, it was believed that light ...
Efficient visible light detection using individual germanium nanowire
... without light illumination. The large conductance at negative VG corresponds to the p-type conduction of the Ge NW field effect transistor 共FET兲. The gate sweep of the dc conductance exhibited a more pronounced hysteresis compared to other NWs such as Si NWs that we measured in similar device geomet ...
... without light illumination. The large conductance at negative VG corresponds to the p-type conduction of the Ge NW field effect transistor 共FET兲. The gate sweep of the dc conductance exhibited a more pronounced hysteresis compared to other NWs such as Si NWs that we measured in similar device geomet ...
3D differential interference contrast microscopy using synthetic
... numerically solve the propagation for each of the angular complex field images to a certain distance from the objective focus, and synthesize a set of propagated complex field images again to form a highly depth-selective image. Figure 4 presents depth-selective images as we vary the propagation dis ...
... numerically solve the propagation for each of the angular complex field images to a certain distance from the objective focus, and synthesize a set of propagated complex field images again to form a highly depth-selective image. Figure 4 presents depth-selective images as we vary the propagation dis ...
Temporal coherence characteristics of a superluminescent
... Broadband light sources such as light-emitting diodes (LEDs) and superluminescent diodes (SLDs) have been widely used for the optical measurement [1], and especially the SLD broadband source has been playing an important role in the optical coherence tomography system [2,3]. High output power and la ...
... Broadband light sources such as light-emitting diodes (LEDs) and superluminescent diodes (SLDs) have been widely used for the optical measurement [1], and especially the SLD broadband source has been playing an important role in the optical coherence tomography system [2,3]. High output power and la ...