Microscopic Analysis
... The polarizing microscope is a compound microscope fitted with two polarizing filters. The lower polarizing filter is placed in the light beam below the specimen and the second filter, the analyzer, is placed in the eyepiece. Normally, the two filters are crossed or almost crossed to allow identific ...
... The polarizing microscope is a compound microscope fitted with two polarizing filters. The lower polarizing filter is placed in the light beam below the specimen and the second filter, the analyzer, is placed in the eyepiece. Normally, the two filters are crossed or almost crossed to allow identific ...
Plasmonic Nanopore for Electrical Profiling of
... We thus present a new method for mapping optical intensity landscapes based on a single plasmonic nanopore. The plasmonic nanopore acts as a local light detector by converting local light intensity to heat, which, in turn, is converted to an electrical signal via the ionic conductance of the nanopor ...
... We thus present a new method for mapping optical intensity landscapes based on a single plasmonic nanopore. The plasmonic nanopore acts as a local light detector by converting local light intensity to heat, which, in turn, is converted to an electrical signal via the ionic conductance of the nanopor ...
Total internal reflection holography for optical interconnections
... pinhole will quadruple the object wave intensity and will divide by four the illumination area in the holographic plane (far-field propagation assumed). This results in an increase of 16 times the object wave irradiance and ofthe ratio between the object and reference beams. ...
... pinhole will quadruple the object wave intensity and will divide by four the illumination area in the holographic plane (far-field propagation assumed). This results in an increase of 16 times the object wave irradiance and ofthe ratio between the object and reference beams. ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
... interconnection between chips restricts high-speed processing of the systems [1]. Optical interconnection is a promising solution for this problem [2]. To achieve optical interconnection between chips in computer systems, appropriate optical components and packaging strategies for these components a ...
... interconnection between chips restricts high-speed processing of the systems [1]. Optical interconnection is a promising solution for this problem [2]. To achieve optical interconnection between chips in computer systems, appropriate optical components and packaging strategies for these components a ...
Slowing Down the Speed of Light - The Institute of Optics
... To achieve a longer fractional delay saturate deeper to propagate farther Exciting possibilities exist for optical buffering and other photonics applications if normalized time delays in the range of 10 – 1000 can be achieved. Next: Find material with faster response (semiconductors?) (to allow dela ...
... To achieve a longer fractional delay saturate deeper to propagate farther Exciting possibilities exist for optical buffering and other photonics applications if normalized time delays in the range of 10 – 1000 can be achieved. Next: Find material with faster response (semiconductors?) (to allow dela ...
Beam Dynamics in PT Symmetric Optical Lattices
... materials. Quite recently, conventional optical array structures (based on real potentials) have received considerable attention and have been examined in several systems including semiconductors, glasses, quadratic and photorefractive materials, and liquid crystals [10]. Given that even a single P ...
... materials. Quite recently, conventional optical array structures (based on real potentials) have received considerable attention and have been examined in several systems including semiconductors, glasses, quadratic and photorefractive materials, and liquid crystals [10]. Given that even a single P ...
Light consists of electromagnetic waves that have oscillating electric
... We will denote the propagation direction of a plane wave by the wave vector k. In real optical systems, such (infinitely spread) plane waves do not exist because of the finite size of the optical elements. Non-planar optical components cause further deviations of the wave from planarity so the wave ...
... We will denote the propagation direction of a plane wave by the wave vector k. In real optical systems, such (infinitely spread) plane waves do not exist because of the finite size of the optical elements. Non-planar optical components cause further deviations of the wave from planarity so the wave ...
Enkeltmolekylstudier av proteiner som bidrar til - Innsida
... previously shown that different signaling molecules are required to mediate the response to CWD and several genes have been implicated. However, it is not known how quickly and in what way the inhibition of cellulose production changes the mechanical characteristics of the cell wall. The Stokke lab ...
... previously shown that different signaling molecules are required to mediate the response to CWD and several genes have been implicated. However, it is not known how quickly and in what way the inhibition of cellulose production changes the mechanical characteristics of the cell wall. The Stokke lab ...
Modulation of spatial coherence of optical field by means of liquid
... liquid crystal placed between two polarizers (see, for example [8]). As has been shown in Ref. 9, depending on the mutual orientation of the main axes of polarizers, this modulator may produce to a good approximation either intensity-only or phase-only modulation of optical field. To demonstrate the ...
... liquid crystal placed between two polarizers (see, for example [8]). As has been shown in Ref. 9, depending on the mutual orientation of the main axes of polarizers, this modulator may produce to a good approximation either intensity-only or phase-only modulation of optical field. To demonstrate the ...
![[pdf]](http://s1.studyres.com/store/data/008852274_1-78de87e82c7d7c13514c1ad15e947732-300x300.png)
Plasmonic modes of gold nano-particle arrays on thin gold
... (d) Resonance wavelengths of the extinction peaks vs. array period: experimental values from (c) (symbols) and calculated values (lines) of different grating orders. ...
... (d) Resonance wavelengths of the extinction peaks vs. array period: experimental values from (c) (symbols) and calculated values (lines) of different grating orders. ...
Visible Light, Wide-Angle Graded Metasurface for Back Reflection
... steps, the coupling efficiency to the retroreflected order gets closer to 100% as the number of steps increases (Supplementary Note 2). Interestingly, even a coarse discretization with only two discretization steps yields a retroreflection efficiency larger than 75%. The reason behind this robustness is a ...
... steps, the coupling efficiency to the retroreflected order gets closer to 100% as the number of steps increases (Supplementary Note 2). Interestingly, even a coarse discretization with only two discretization steps yields a retroreflection efficiency larger than 75%. The reason behind this robustness is a ...
Full Text - Journal of The Royal Society Interface
... method, a collimated beam from a light source illuminates the sample at an angle ui (which is varied by rotating the sample) and the scattered light in reflection and transmission is collected at ud (which is varied by rotating a detector arm). The illumination beam is generally provided by a broad- ...
... method, a collimated beam from a light source illuminates the sample at an angle ui (which is varied by rotating the sample) and the scattered light in reflection and transmission is collected at ud (which is varied by rotating a detector arm). The illumination beam is generally provided by a broad- ...
femtosecond laser - UCSB - Optical Characterization Lab
... • Kerr’s effect – inetnsity-dependent index of refraction: n = n0 + n2I • The e/m field inside the laser cavity has Gaussian distribution of intensity which creates similar distribution of the refractive index. • High-intensity beam is self-focused by the photoinduced lens. ...
... • Kerr’s effect – inetnsity-dependent index of refraction: n = n0 + n2I • The e/m field inside the laser cavity has Gaussian distribution of intensity which creates similar distribution of the refractive index. • High-intensity beam is self-focused by the photoinduced lens. ...
Optical pumping of a lithium atomic beam for atom interferometry
... of atomic beams developed a lot with the progress of tunable lasers and, especially laser diodes. We will not discuss here optical pumping of cold atom clouds because these experiments usually differ from the optical pumping of a thermal beam and also because there are too many experiments to be quo ...
... of atomic beams developed a lot with the progress of tunable lasers and, especially laser diodes. We will not discuss here optical pumping of cold atom clouds because these experiments usually differ from the optical pumping of a thermal beam and also because there are too many experiments to be quo ...
... liquid crystal placed between two polarizers (see, for example [8]). As has been shown in Ref. 9, depending on the mutual orientation of the main axes of polarizers, this modulator may produce to a good approximation either intensity-only or phase-only modulation of optical field. To demonstrate the ...
student chapter report
... Celebrating the end of World Year of Physics 2005 three oaks were planted and a memorial stone was placed in front of the Institute of Physics. “A stone” in German is “Ein Stein” and three oaks named “Atom”, “Electron” and “Quantum” symbolize the most important concepts in Einstein’s theories. Our c ...
... Celebrating the end of World Year of Physics 2005 three oaks were planted and a memorial stone was placed in front of the Institute of Physics. “A stone” in German is “Ein Stein” and three oaks named “Atom”, “Electron” and “Quantum” symbolize the most important concepts in Einstein’s theories. Our c ...
Synthesis of highly focused fields with circular
... requirements of a specific problem [10]. Interestingly, several authors described inverse methods to find the pupil function from a predetermined field distribution in the focal area [11, 12]. Light shaping can be accomplished by using an optical setup able to generate beams with arbitrary polariza ...
... requirements of a specific problem [10]. Interestingly, several authors described inverse methods to find the pupil function from a predetermined field distribution in the focal area [11, 12]. Light shaping can be accomplished by using an optical setup able to generate beams with arbitrary polariza ...
An Optical Conveyor for Molecules
... The presented approach complements and extends previous methods to manipulate and trap small objects. Cohen and Moerner showed a fluorescence feedback trap based on microstructured electrophoresis.3 This technique proved successful in trapping single molecules down to the size of a few nanometers.17 ...
... The presented approach complements and extends previous methods to manipulate and trap small objects. Cohen and Moerner showed a fluorescence feedback trap based on microstructured electrophoresis.3 This technique proved successful in trapping single molecules down to the size of a few nanometers.17 ...
Word Doc - Imagineering Ezine
... As illustrated in Figures 5f, there are two methods that you can use to collimate light from multiple emitters. If you place a single lens in front an array of light sources, multiple images of the sources will be directed toward the receiver. The individual images will be widely spaced with large b ...
... As illustrated in Figures 5f, there are two methods that you can use to collimate light from multiple emitters. If you place a single lens in front an array of light sources, multiple images of the sources will be directed toward the receiver. The individual images will be widely spaced with large b ...
Optical response of plasmonic relief meta-surfaces
... The optical properties of surface relief metamaterials are dictated by geometric parameters including the in-plane size, out of plane height/depth, anisotropy, cross-sectional shape and periodic arrangement of features. As illustrated above, the (an)isotropy of unit cells determines the polarization ...
... The optical properties of surface relief metamaterials are dictated by geometric parameters including the in-plane size, out of plane height/depth, anisotropy, cross-sectional shape and periodic arrangement of features. As illustrated above, the (an)isotropy of unit cells determines the polarization ...
Optical tweezers
Optical tweezers (originally called ""single-beam gradient force trap"") are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch to physically hold and move microscopic dielectric objects similar to tweezers. Optical tweezers have been particularly successful in studying a variety of biological systems in recent years.