Estimation of longitudinal resolution in optical coherence
... portance for the ability to resolve small structures in optical coherence imaging such as optical coherence tomography1 and optical coherence microscopy.4 In this paper we investigate optical coherence imaging cases in which the self-coherence function is the determining factor of longitudinal resol ...
... portance for the ability to resolve small structures in optical coherence imaging such as optical coherence tomography1 and optical coherence microscopy.4 In this paper we investigate optical coherence imaging cases in which the self-coherence function is the determining factor of longitudinal resol ...
Microscopy studies on uncultivated magnetotactic bacteria
... The model of passive orientation of MB along the lines of a magnetic field combined with the active migration because of the flagella, the so-called magnetotaxis, is maintained until today. Magnetotaxis is considered an advantage in finding the optimum position in the environment because MB would ha ...
... The model of passive orientation of MB along the lines of a magnetic field combined with the active migration because of the flagella, the so-called magnetotaxis, is maintained until today. Magnetotaxis is considered an advantage in finding the optimum position in the environment because MB would ha ...
A simple peak-to-average power ratio reduction
... Optical OFDM has become a promising technique in long-haul and high-speed optical transmission systems, for its high spectral efficiency, relatively low bit rate and advanced robustness against chromatic dispersion and polarization mode dispersion [1-3]. Conventional optical OFDM systems utilize ele ...
... Optical OFDM has become a promising technique in long-haul and high-speed optical transmission systems, for its high spectral efficiency, relatively low bit rate and advanced robustness against chromatic dispersion and polarization mode dispersion [1-3]. Conventional optical OFDM systems utilize ele ...
Propagation and focusing of optical fields
... √ the distance from the beam waist to where the spot has increased by a factor of 2. It is important to notice that along the z axis (ρ = 0) the phases of the beam deviate from those of a plane wave. If at z → −∞ the beam was in phase with a reference plane wave, then at z → +∞ the beam will be exac ...
... √ the distance from the beam waist to where the spot has increased by a factor of 2. It is important to notice that along the z axis (ρ = 0) the phases of the beam deviate from those of a plane wave. If at z → −∞ the beam was in phase with a reference plane wave, then at z → +∞ the beam will be exac ...
A very convenient setup to generate intense VUV coherent light at
... of dominant saturation processes, which are interesting to follow. While a two-photon absorption could limit the first line production efficiency, the detuning from the resonance would change the nature of saturation and its onset. Here modification of the refractive index of nonlinear medium by the i ...
... of dominant saturation processes, which are interesting to follow. While a two-photon absorption could limit the first line production efficiency, the detuning from the resonance would change the nature of saturation and its onset. Here modification of the refractive index of nonlinear medium by the i ...
ANALOG SIGNAL PROCESSING FOR OPTICAL COHERENCE
... STATEMENT BY AUTHOR This dissertation has been submitted in partial fulfillment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. ...
... STATEMENT BY AUTHOR This dissertation has been submitted in partial fulfillment of requirements for an advanced degree at The University of Arizona and is deposited in the University Library to be made available to borrowers under rules of the Library. ...
Reference Guide to Fiber Optic Testing Glossary Reference Guide to Fib
... A very accurate color filter used to selectively pass light of a small range of wavelengths, whereas other ones are reflected. Used in wavelength division multiplexers (WDM). ...
... A very accurate color filter used to selectively pass light of a small range of wavelengths, whereas other ones are reflected. Used in wavelength division multiplexers (WDM). ...
Precision interferometer
... made it possible to create optical systems that are accurate to within a fraction of a wavelength. ➤ NOTE: The PASCO Precision Interferometer is not designed for actual component testing in the Twyman-Green mode. It is intended only to provide a simple introduction to this important application of i ...
... made it possible to create optical systems that are accurate to within a fraction of a wavelength. ➤ NOTE: The PASCO Precision Interferometer is not designed for actual component testing in the Twyman-Green mode. It is intended only to provide a simple introduction to this important application of i ...
Full-Text PDF
... researchers from diverse communities. The concept of optofluidics combines optics and microfluidics to exploit novel properties and functionalities. In the very beginning, the unique properties of liquid, such as mobility, fungibility and deformability, initiated the motivation to develop optical el ...
... researchers from diverse communities. The concept of optofluidics combines optics and microfluidics to exploit novel properties and functionalities. In the very beginning, the unique properties of liquid, such as mobility, fungibility and deformability, initiated the motivation to develop optical el ...
Building a Helium — Neon Gas Laser Lab Manual Figure 1
... 4. Place the alignment laser into its post-holder and tighten the screw on the post-holder. Plug in the alignment laser and turn it on. The screw on the bottom of the laser can be used to adjust the beam so that it is no longer parallel with the breadboard. For this purpose of this lab, the beam sho ...
... 4. Place the alignment laser into its post-holder and tighten the screw on the post-holder. Plug in the alignment laser and turn it on. The screw on the bottom of the laser can be used to adjust the beam so that it is no longer parallel with the breadboard. For this purpose of this lab, the beam sho ...
1 Fundamental Optics www.cvimellesgriot.com
... The process of solving virtually any optical engineering problem can be broken down into two main steps. First, paraxial calculations (first order) are made to determine critical parameters such as magnification, focal length(s), clear aperture (diameter), and object and image position. These paraxi ...
... The process of solving virtually any optical engineering problem can be broken down into two main steps. First, paraxial calculations (first order) are made to determine critical parameters such as magnification, focal length(s), clear aperture (diameter), and object and image position. These paraxi ...
Nonlinear Optics Third Edition
... the student to go on to perform independent research in this field. The author has successfully used a preliminary version of this book in his course at the University of Rochester, which is typically attended by students ranging from seniors to advanced PhD students from disciplines that include op ...
... the student to go on to perform independent research in this field. The author has successfully used a preliminary version of this book in his course at the University of Rochester, which is typically attended by students ranging from seniors to advanced PhD students from disciplines that include op ...
RAY OPTICS
... Light is an electromagnetic wave phenomenon described by the same theoretical principles that govern all forms of electromagnetic radiation. Electromagnetic radiation propagates in the form of two mutually coupled vector waves, an electric-field wave and a magnetic-field wave. Nevertheless, it is p ...
... Light is an electromagnetic wave phenomenon described by the same theoretical principles that govern all forms of electromagnetic radiation. Electromagnetic radiation propagates in the form of two mutually coupled vector waves, an electric-field wave and a magnetic-field wave. Nevertheless, it is p ...
\ 204 207 208 209 210 21g \ 221 /
... (i.e. a cavity), so that it has gain but does not oscillate. As used herein an optical poWer ampli?er generally refers to the last optical ampli?er before delivery of an ampli?ed beam to a target or a Wavelength converter. An ampli?er stage betWeen a source of radiation and a poWer ampli?er is gener ...
... (i.e. a cavity), so that it has gain but does not oscillate. As used herein an optical poWer ampli?er generally refers to the last optical ampli?er before delivery of an ampli?ed beam to a target or a Wavelength converter. An ampli?er stage betWeen a source of radiation and a poWer ampli?er is gener ...
Second Harmonic Generation Technique and its Applications
... to the excited state of unperturbed system a resonance will occur in SHG and the NLO susceptibility, describing it, is complex. Although the frequency doubling was observed earlier in electrical circuits with low frequency fields, the first observation of the optical frequency conversion was done in ...
... to the excited state of unperturbed system a resonance will occur in SHG and the NLO susceptibility, describing it, is complex. Although the frequency doubling was observed earlier in electrical circuits with low frequency fields, the first observation of the optical frequency conversion was done in ...
Chapter 2 – Review of length measuring interferometers
... into two. After travelling along the reference and measurement paths the beams interfere with each other and are split again. One beam is given an extra phase difference of π/4 to produce two orthogonal outputs for example by using a quarterwave plate, as in figure 2.1, or by using a specially coate ...
... into two. After travelling along the reference and measurement paths the beams interfere with each other and are split again. One beam is given an extra phase difference of π/4 to produce two orthogonal outputs for example by using a quarterwave plate, as in figure 2.1, or by using a specially coate ...
Semiconductor Disk Lasers: Recent Advances in Generation of
... energy will be lost to spontaneous emission between the consequent pulses. This feature sets a practical upper limit for the cavity length in mode-locked laser with continuous wave pumping. To scale up the power of an SDL, it is possible to deploy multiple gain elements in single cavity [9–11]. SDLs ...
... energy will be lost to spontaneous emission between the consequent pulses. This feature sets a practical upper limit for the cavity length in mode-locked laser with continuous wave pumping. To scale up the power of an SDL, it is possible to deploy multiple gain elements in single cavity [9–11]. SDLs ...
Fine Structure Constant Defines Visual Transparency of Graphene
... To find accurate absolute values of T and G, in the analysis shown in Figs. 1B and S2, we have omitted the part of the transmittance spectra at λ <450 nm, which as discussed above was affected by hydrocarbon contamination. Also, our apparatus noise was somewhat higher in the infrared region so that ...
... To find accurate absolute values of T and G, in the analysis shown in Figs. 1B and S2, we have omitted the part of the transmittance spectra at λ <450 nm, which as discussed above was affected by hydrocarbon contamination. Also, our apparatus noise was somewhat higher in the infrared region so that ...
NONLINEAR OPTICS BASICS Units and Nomenclature
... arguments show that djkl ¼ djlk ; which reduces the number of independent d-coefficients from 81 to 18. A simpler subscript notation is then introduced that uses the integers 1 – 6 to represent pairs of Cartesian components k and l. This reduces the number of subscripts from three to two. An example ...
... arguments show that djkl ¼ djlk ; which reduces the number of independent d-coefficients from 81 to 18. A simpler subscript notation is then introduced that uses the integers 1 – 6 to represent pairs of Cartesian components k and l. This reduces the number of subscripts from three to two. An example ...
Galileoscope Optics Guide - Teaching with Telescopes
... Show the students the line and tell them that one side of the line represents air and the other side of the line represents plastic. 2. Tell the students that light is a wave, similar to a water wave. They are going to represent a wavefront. A wavefront can be though of as the crest or top of a wave ...
... Show the students the line and tell them that one side of the line represents air and the other side of the line represents plastic. 2. Tell the students that light is a wave, similar to a water wave. They are going to represent a wavefront. A wavefront can be though of as the crest or top of a wave ...
pdf file
... Figure 3 shows on- and off-axis temporal intensity profiles of the THz pulses obtained from the time-dependent imaging data corresponding to figure 2. The data for each pulse are extracted from a fixed position of 100 frames of images. The on-axis (x = 0 mm) waveform has the smallest pulse width. Th ...
... Figure 3 shows on- and off-axis temporal intensity profiles of the THz pulses obtained from the time-dependent imaging data corresponding to figure 2. The data for each pulse are extracted from a fixed position of 100 frames of images. The on-axis (x = 0 mm) waveform has the smallest pulse width. Th ...
Design and construction of a refracting telescope
... Any incident ray travelling parallel to the principal axis of a converging lens will refract through the lens and travel through a focal point on the opposite side of the lens Any incident ray travelling through the focal point on the way to the lens will refract through the lens and travel parallel ...
... Any incident ray travelling parallel to the principal axis of a converging lens will refract through the lens and travel through a focal point on the opposite side of the lens Any incident ray travelling through the focal point on the way to the lens will refract through the lens and travel parallel ...
Guided photoluminescence study of Nd
... distribution of the guided modes to be obtained. Then, the intensity curve was obtained by integrating the data along each sampling transverse line. The light intensity decreased exponentially with the z-propagation distance. In this study, the attenuation values were the average of several measurem ...
... distribution of the guided modes to be obtained. Then, the intensity curve was obtained by integrating the data along each sampling transverse line. The light intensity decreased exponentially with the z-propagation distance. In this study, the attenuation values were the average of several measurem ...
Analysis And Design Of Wide-angle Foveated Optical
... using liquid crystal (LC) spatial light modulators (SLM) has received considerable attention as a potential approach to reducing size and complexity in fast wide-angle lenses. The fundamental concept behind optical foveated imaging is reducing the number of elements in a fast wide-angle lens by plac ...
... using liquid crystal (LC) spatial light modulators (SLM) has received considerable attention as a potential approach to reducing size and complexity in fast wide-angle lenses. The fundamental concept behind optical foveated imaging is reducing the number of elements in a fast wide-angle lens by plac ...
TDLS98AbBook
... This talk will review recent results from research conducted at the University of Oklahoma on the development of new IV-VI semiconductor (lead salt) epitaxial growth and laser fabrication procedures that can ultimately lead to dramatic increases in mid-IR laser operating temperatures. Work has focus ...
... This talk will review recent results from research conducted at the University of Oklahoma on the development of new IV-VI semiconductor (lead salt) epitaxial growth and laser fabrication procedures that can ultimately lead to dramatic increases in mid-IR laser operating temperatures. Work has focus ...
Confocal microscopy
Confocal microscopy is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of adding a spatial pinhole placed at the confocal plane of the lens to eliminate out-of-focus light. It enables the reconstruction of three-dimensional structures from the obtained images. This technique has gained popularity in the scientific and industrial communities and typical applications are in life sciences, semiconductor inspection and materials science.