Tabletop nanometer extreme ultraviolet imaging in an
... sample position as it is scanned [17]. The result is a general and extensible imaging technique that can provide a comprehensive and definitive characterization of how light at any wavelength scatters from an object, with the resolution limited only by the wavelength and the numerical aperture of th ...
... sample position as it is scanned [17]. The result is a general and extensible imaging technique that can provide a comprehensive and definitive characterization of how light at any wavelength scatters from an object, with the resolution limited only by the wavelength and the numerical aperture of th ...
Shaping optical space with metamaterials
... two points that corresponds to the shortest travel time. By tailoring the local phase velocity of light—via the local refractive index n(r) = ±√εμ—it’s possible to minimize the travel time for selected pathways. That reasoning is intuitive. But for an explicit construction principle, one can turn to ...
... two points that corresponds to the shortest travel time. By tailoring the local phase velocity of light—via the local refractive index n(r) = ±√εμ—it’s possible to minimize the travel time for selected pathways. That reasoning is intuitive. But for an explicit construction principle, one can turn to ...
Photonics. Fundamentals of Photonics and Physics. Volume 1. A Wiley- Brochure
... - Comprehensive and accessible coverage of the whole of modern photonics - Emphasizes processes and applications that specifically exploit photon attributes of light - Deals with the rapidly advancing area of modern optics - Chapters are written by top scientists in their field Written for the gradu ...
... - Comprehensive and accessible coverage of the whole of modern photonics - Emphasizes processes and applications that specifically exploit photon attributes of light - Deals with the rapidly advancing area of modern optics - Chapters are written by top scientists in their field Written for the gradu ...
Infrared Spectrometry
... Detectors do not respond to power variations at these high frequencies, the time domain output from such an instrument would contain no frequency information. ...
... Detectors do not respond to power variations at these high frequencies, the time domain output from such an instrument would contain no frequency information. ...
Diffractive Optical Elements
... design and simulation of diffractive optical elements to offer its customers a ...
... design and simulation of diffractive optical elements to offer its customers a ...
Linking Asteroids and Meteorites through Reflectance Spectroscopy
... electrons into the nearest pixel • The number of freed electrons per pixel is proportional to the number of photons hitting it • An electronic device connected to a computer counts the number of electrons and generates an image ...
... electrons into the nearest pixel • The number of freed electrons per pixel is proportional to the number of photons hitting it • An electronic device connected to a computer counts the number of electrons and generates an image ...
BASIC THEORY OF PARTIAL COHERENCE
... In (19) the inner integral is characteristic of the instrumentonly, while the factors t({3) and t* (Il - (3) are determined solely from the object spectrum. However, (19) is not in the form of "object spectrum times transfer function equals image spectrum." The inner integral has been referred to as ...
... In (19) the inner integral is characteristic of the instrumentonly, while the factors t({3) and t* (Il - (3) are determined solely from the object spectrum. However, (19) is not in the form of "object spectrum times transfer function equals image spectrum." The inner integral has been referred to as ...
CODE Subject name INTRODUCTION LEARNING OUTCOMES
... Able to read and comprehend scientific literature and reports GENERAL COMPETENCE The course prepares the student for doing independent research in electromagnetics and waveguide optics. It also prepares them to work as an engineer and researcher in the industry at an advance level. ...
... Able to read and comprehend scientific literature and reports GENERAL COMPETENCE The course prepares the student for doing independent research in electromagnetics and waveguide optics. It also prepares them to work as an engineer and researcher in the industry at an advance level. ...
The Fabry-Perot Cavity
... Derivation of the Laser Threshold Condition In the steady-state, the light (plane wave assumption) should remain unchanged after one round trip (2L). In other words, the gain = loss at threshold. An energy pumped in above threshold is converted into photons. R1 and R2 are the power reflectivities o ...
... Derivation of the Laser Threshold Condition In the steady-state, the light (plane wave assumption) should remain unchanged after one round trip (2L). In other words, the gain = loss at threshold. An energy pumped in above threshold is converted into photons. R1 and R2 are the power reflectivities o ...
Three-dimensional imaging by sub-Nyquist
... data is of course a reduced signal-to-noise ratio not only because fewer data are acquired but also because of aliasing of noise at higher frequencies than the sample rate. However, this reduction in signal-tonoise ratio may in many circumstances be offset by the ability to average several scans dur ...
... data is of course a reduced signal-to-noise ratio not only because fewer data are acquired but also because of aliasing of noise at higher frequencies than the sample rate. However, this reduction in signal-tonoise ratio may in many circumstances be offset by the ability to average several scans dur ...
OCS`08
... March 2008, in the heart of the French Riviera (The first OCS meeting of 2005 was held in Marseille). The Optical Complex Systems are more and more in the heart of various systems that industrial applications bring to everyday life. From environment up to spatial applications, OCS is also relevant i ...
... March 2008, in the heart of the French Riviera (The first OCS meeting of 2005 was held in Marseille). The Optical Complex Systems are more and more in the heart of various systems that industrial applications bring to everyday life. From environment up to spatial applications, OCS is also relevant i ...
Chapter 7 Components of Optical Instruments
... D-1 is called reciprocal linear dispersion nm/mm or Å/mm For most integuments D-1 = d/nF, ie is linear as a function of distance Resolving Power of Monochrometers How well it can separate slightly different wavelengths Resolving power (R)=8/)8 Can be shown that R=n/V ...
... D-1 is called reciprocal linear dispersion nm/mm or Å/mm For most integuments D-1 = d/nF, ie is linear as a function of distance Resolving Power of Monochrometers How well it can separate slightly different wavelengths Resolving power (R)=8/)8 Can be shown that R=n/V ...
Light forces 1. Calculation of the mean force
... 1. We wish to get a situation where the dipole force dominates over the radiation pressure. How should the detuning δ be chosen? Give a possible value in the case of rubidium. 2. Give the expression of the dipole potential from which the dipole force derives. What is the expression of the dipole pot ...
... 1. We wish to get a situation where the dipole force dominates over the radiation pressure. How should the detuning δ be chosen? Give a possible value in the case of rubidium. 2. Give the expression of the dipole potential from which the dipole force derives. What is the expression of the dipole pot ...
UV-Vis Absorption Spectroscopy
... increases, the fine structure in the spectrum is lost. At a bandwidth of 10 nm, only a broad absorption band is observed. ...
... increases, the fine structure in the spectrum is lost. At a bandwidth of 10 nm, only a broad absorption band is observed. ...
1. introduction - Institute for Data Analysis and Visualization
... Next we applied our technique to data captured from a 22-year-old male volunteer. We chose a range of B-scans from the OCT volume, applied motion correction to the A-scans in the chosen range, and assembled the A-scans into a volume. Figure 6 shows several images from this subject. The top row shows ...
... Next we applied our technique to data captured from a 22-year-old male volunteer. We chose a range of B-scans from the OCT volume, applied motion correction to the A-scans in the chosen range, and assembled the A-scans into a volume. Figure 6 shows several images from this subject. The top row shows ...
TITLE: Modal analysis of complex dielectric waveguides by rigorous
... National Sun Yat-Sen University, Institute of Electro-Optical Engr, Kaohsiung , Taiwan DATE: OCT 13, 2:30PM ...
... National Sun Yat-Sen University, Institute of Electro-Optical Engr, Kaohsiung , Taiwan DATE: OCT 13, 2:30PM ...
Microsoft Word Format - McMaster University > ECE
... Fundamental mode (LP01) has no cut-off wavelength, higher (1st) order mode (LP11) has cut-off wavelength given by: c 2aNA/ Vc , where Vc is calculated from the eigen value equation for LP11 mode, Vc 2.4 for any fiber with step-index profile (the 1st root of zero-order Bessel function). In orde ...
... Fundamental mode (LP01) has no cut-off wavelength, higher (1st) order mode (LP11) has cut-off wavelength given by: c 2aNA/ Vc , where Vc is calculated from the eigen value equation for LP11 mode, Vc 2.4 for any fiber with step-index profile (the 1st root of zero-order Bessel function). In orde ...
Fiber Optic Communications - New Mexico State University
... – Self-phase results in a broadening of the linewidth of a particular signal – Cross-phase occurs when self-phase modulation causes phase changes in another signal. which results in a linewidth broadening at another wavelength. ...
... – Self-phase results in a broadening of the linewidth of a particular signal – Cross-phase occurs when self-phase modulation causes phase changes in another signal. which results in a linewidth broadening at another wavelength. ...
Localized measurement of longitudinal and transverse
... of the Doppler peak. For the second case (gray solid line), the integration of the coherence gate over the longitudinal flow profile is included, and as can be observed, the model is in good agreement with the measurement: the nonuniform distribution of Doppler frequencies in the scattering volume i ...
... of the Doppler peak. For the second case (gray solid line), the integration of the coherence gate over the longitudinal flow profile is included, and as can be observed, the model is in good agreement with the measurement: the nonuniform distribution of Doppler frequencies in the scattering volume i ...
R1B p4 - CenSSIS - Northeastern University
... at the image plane is calculated by a superposition of all the fields from other object planes. As a consequence, since we are adding fields rather than phases, the phase introduced by light propagating through these planes is not well reconstructed at the image plane. ...
... at the image plane is calculated by a superposition of all the fields from other object planes. As a consequence, since we are adding fields rather than phases, the phase introduced by light propagating through these planes is not well reconstructed at the image plane. ...
Synchronized ti scattering microscopy
... Coherent Raman Scattering (CRS) microscopy, with contrast from coherent anti-Stokes Raman scattering (CARS) [1] or stimulated Raman scattering (SRS) [2], allows label-free imaging of biological samples with endogenous image contrast based on vibrational spectroscopy. Imaging with high spatial resolu ...
... Coherent Raman Scattering (CRS) microscopy, with contrast from coherent anti-Stokes Raman scattering (CARS) [1] or stimulated Raman scattering (SRS) [2], allows label-free imaging of biological samples with endogenous image contrast based on vibrational spectroscopy. Imaging with high spatial resolu ...
optical cavity
... resonators in which periodic refocussing of the intracavity beam is produced. If the cavity is unstable, the beam size will grow without limit, eventually growing larger than the size of the cavity mirrors and being lost. By using methods such as ray transfer matrix analysis, it is possible to calcu ...
... resonators in which periodic refocussing of the intracavity beam is produced. If the cavity is unstable, the beam size will grow without limit, eventually growing larger than the size of the cavity mirrors and being lost. By using methods such as ray transfer matrix analysis, it is possible to calcu ...
Noniterative Exact Solution to the Phase Problem in Optical Imaging Implemented with Scanning Probe Microscope.
... where λ is the wavelength of the laser, Δj is the phase difference calculated from the experiment, and Δn = nsample nair = 0.6496. The corresponding depth of the sample resulting from the algorithm and averaging over the length of the line was 573 nm, in accordance with the average AFM result of 57 ...
... where λ is the wavelength of the laser, Δj is the phase difference calculated from the experiment, and Δn = nsample nair = 0.6496. The corresponding depth of the sample resulting from the algorithm and averaging over the length of the line was 573 nm, in accordance with the average AFM result of 57 ...
Long-Distance Optical Fiber Sensor Systems
... Fiber Bragg grating (FBG) fiber sensors are very attractive in many applications due to their high versatile advantages such as high sensitivity, electro-magnetic immunity, compactness, high resolution and high optical signal-to-noise ratio (SNR) against the noise. Because of the noise and loss indu ...
... Fiber Bragg grating (FBG) fiber sensors are very attractive in many applications due to their high versatile advantages such as high sensitivity, electro-magnetic immunity, compactness, high resolution and high optical signal-to-noise ratio (SNR) against the noise. Because of the noise and loss indu ...
Optical coherence tomography
Optical coherence tomography (OCT) is an established medical imaging technique that uses light to capture micrometer-resolution, three-dimensional images from within optical scattering media (e.g., biological tissue). Optical coherence tomography is based on low-coherence interferometry, typically employing near-infrared light. The use of relatively long wavelength light allows it to penetrate into the scattering medium. Confocal microscopy, another optical technique, typically penetrates less deeply into the sample but with higher resolution.Depending on the properties of the light source (superluminescent diodes, ultrashort pulsed lasers, and supercontinuum lasers have been employed), optical coherence tomography has achieved sub- micrometer resolution (with very wide-spectrum sources emitting over a ~100 nm wavelength range).Optical coherence tomography is one of a class of optical tomographic techniques. A relatively recent implementation of optical coherence tomography, frequency-domain optical coherence tomography, provides advantages in signal-to-noise ratio, permitting faster signal acquisition. Commercially available optical coherence tomography systems are employed in diverse applications, including art conservation and diagnostic medicine, notably in ophthalmology and optometry where it can be used to obtain detailed images from within the retina. Recently it has also begun to be used in interventional cardiology to help diagnose coronary artery disease. It has also shown promise in dermatology to improve the diagnostic process.