Chapter 2 – Review of length measuring interferometers
... The field of heterodyne interferometry has been made accessible due to the very narrow linewidths of lasers which allows the observation of beats between two laser frequencies. The technique has resulted in a commercial design of interferometer (Hewlett-Packard 5528A) which can be used for distance ...
... The field of heterodyne interferometry has been made accessible due to the very narrow linewidths of lasers which allows the observation of beats between two laser frequencies. The technique has resulted in a commercial design of interferometer (Hewlett-Packard 5528A) which can be used for distance ...
D12 in docx
... electron-beam lithography plus stacking of several layers on the one hand (KIT and Bilkent) and inherently three-dimensional direct-laser-writing (DLW) optical lithography on the other hand (KIT). The previous status has been reported on in D10, which shall not be repeated here. Meanwhile it has bec ...
... electron-beam lithography plus stacking of several layers on the one hand (KIT and Bilkent) and inherently three-dimensional direct-laser-writing (DLW) optical lithography on the other hand (KIT). The previous status has been reported on in D10, which shall not be repeated here. Meanwhile it has bec ...
Measurement of seawater refractive index and salinity by means of
... accurate measurement of seawater refractive index and salinity. The specific goal was to measure the refractive index of the water sample with an accuracy of 10−6 refractive index units (RIU). The size goal was set to be a cylindrical container with a height of 80 mm and a diameter of 36 mm. The rea ...
... accurate measurement of seawater refractive index and salinity. The specific goal was to measure the refractive index of the water sample with an accuracy of 10−6 refractive index units (RIU). The size goal was set to be a cylindrical container with a height of 80 mm and a diameter of 36 mm. The rea ...
Experimental Realization of Two Decoupled Directional Couplers in a
... oscillates between waveguide 2 and 3 with virtually no leakage to the outer waveguides (1 and 4). In contrast, when light is injected into the outer waveguide (1), the far-field shows it exits the system only from waveguide 1. The NSOM measurement confirms the propagating light is localized in wavegui ...
... oscillates between waveguide 2 and 3 with virtually no leakage to the outer waveguides (1 and 4). In contrast, when light is injected into the outer waveguide (1), the far-field shows it exits the system only from waveguide 1. The NSOM measurement confirms the propagating light is localized in wavegui ...
WAVE OPTICS
... ul(r, t) and u2(r, t) represent optical waves, then u(r, t) = z+(r, t) + u2(r, t) also representsa possibleoptical wave. At the boundary between two different media, the wavefunction changesin a way that depends on the refractive indices. However, the laws that govern this change ...
... ul(r, t) and u2(r, t) represent optical waves, then u(r, t) = z+(r, t) + u2(r, t) also representsa possibleoptical wave. At the boundary between two different media, the wavefunction changesin a way that depends on the refractive indices. However, the laws that govern this change ...
INTERMEDIATE STAGE FUNDAMENTAL OF PHYSICS Sindh
... Vectors can be added by graphical and geometrical method. Addition of vectors means to get a single vector by adding two or more vectors. The single vector obtained by the addition of the two or more vectors is called as resultant vector. ...
... Vectors can be added by graphical and geometrical method. Addition of vectors means to get a single vector by adding two or more vectors. The single vector obtained by the addition of the two or more vectors is called as resultant vector. ...
Exposing Digital Forgeries Through Chromatic Aberration
... long wavelength (dashed red ray) light. The result of this splitting of light is termed lateral chromatic aberration. Lateral chromatic aberration can be quantified with a low-parameter model. Consider, for example, the position of short wavelength (solid blue ray) and long wavelength (dashed red ray ...
... long wavelength (dashed red ray) light. The result of this splitting of light is termed lateral chromatic aberration. Lateral chromatic aberration can be quantified with a low-parameter model. Consider, for example, the position of short wavelength (solid blue ray) and long wavelength (dashed red ray ...
Aberration-free three-dimensional multiphoton imaging of neuronal
... this microscope can scan the focal spot along any three-dimensional trajectory at high speed. Both the objective lens L2 and the specimen remain stationary during imaging because the scanning process is carried out remotely using elements upstream of the objective. The LSU comprises a pair of orthog ...
... this microscope can scan the focal spot along any three-dimensional trajectory at high speed. Both the objective lens L2 and the specimen remain stationary during imaging because the scanning process is carried out remotely using elements upstream of the objective. The LSU comprises a pair of orthog ...
Holography
... Until now holographs were presented at which the object and the reference wave impinge from the same side on the photographic layer. Holograms whose images are reconstructed in the reflection are of large importance especially in the field of graphics and art. In this case, the reference wave- and l ...
... Until now holographs were presented at which the object and the reference wave impinge from the same side on the photographic layer. Holograms whose images are reconstructed in the reflection are of large importance especially in the field of graphics and art. In this case, the reference wave- and l ...
Simulating and optimizing compound refractive lens-based X
... refractive power of the CRL per unit length (Lengeler et al., 1999) while ð2Þ1=2 is the critical angle for total external reflection (Schroer & Lengeler, 2005). The trigonometric terms in equation (3) imply periodicity with respect to N’. While attenuation by the lens means that CRLs practically op ...
... refractive power of the CRL per unit length (Lengeler et al., 1999) while ð2Þ1=2 is the critical angle for total external reflection (Schroer & Lengeler, 2005). The trigonometric terms in equation (3) imply periodicity with respect to N’. While attenuation by the lens means that CRLs practically op ...
Collimation Tester - Newport Corporation
... Tester offers the researcher a simpler approach. The Newport Collimation Tester 20QS20 makes use of a technique called “Shearing Interferometry.” This is a null method used to test the collimation of laser light whose coherence length is long compared to the thickness of the collimation tester. The ...
... Tester offers the researcher a simpler approach. The Newport Collimation Tester 20QS20 makes use of a technique called “Shearing Interferometry.” This is a null method used to test the collimation of laser light whose coherence length is long compared to the thickness of the collimation tester. The ...
Optical negative refraction by four-wave mixing in thin metallic nanostructures LETTERS *
... could have potential impact on many important applications, such as superlens imaging. Snell’s law can be generalized to nonlinear processes by taking into account not only the different direction of the refracted electromagnetic (EM) wavevector but also the frequency at which it is emitted17 . Freq ...
... could have potential impact on many important applications, such as superlens imaging. Snell’s law can be generalized to nonlinear processes by taking into account not only the different direction of the refracted electromagnetic (EM) wavevector but also the frequency at which it is emitted17 . Freq ...
Retroreflector
A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflects light back to its source with a minimum of scattering. In a retroreflector an electromagnetic wavefront is reflected back along a vector that is parallel to but opposite in direction from the wave's source. The angle of incidence at which the device or surface reflects light in this way is greater than zero, unlike a planar mirror, which does this only if the mirror is exactly perpendicular to the wave front, having a zero angle of incidence.