![Implementing the Theory of Sum Frequency Generation Vibrational](http://s1.studyres.com/store/data/007140145_1-c4e7efd5578d714f31fe686e1a8ed2f0-300x300.png)
Implementing the Theory of Sum Frequency Generation Vibrational
... isotropic distribution of molecules in a bulk phase is centrosymmetric, i.e., it lacks asymmetry and is consequently SF inactive. Introduction of an interface into an isotropic bulk phase gives rise to a plane of asymmetry and the SF activity of exclusively the interfacial molecules. In addition, fo ...
... isotropic distribution of molecules in a bulk phase is centrosymmetric, i.e., it lacks asymmetry and is consequently SF inactive. Introduction of an interface into an isotropic bulk phase gives rise to a plane of asymmetry and the SF activity of exclusively the interfacial molecules. In addition, fo ...
Quantification of retinal layer thickness changes in acute macular
... the interdigitation zone (IZ), the ellipsoid zone (EZ) and the external limiting membrane (ELM).2 3 Over time scotomas may fade and subsequent thinning of ONL ensues.2 4 Beside spectral domain optical coherence tomography (SD-OCT), nearinfrared reflectance (NIR) imaging best identifies the typical AMN ...
... the interdigitation zone (IZ), the ellipsoid zone (EZ) and the external limiting membrane (ELM).2 3 Over time scotomas may fade and subsequent thinning of ONL ensues.2 4 Beside spectral domain optical coherence tomography (SD-OCT), nearinfrared reflectance (NIR) imaging best identifies the typical AMN ...
Light–matter interaction induces a single positive vortex with swirling
... 1. Introduction Motivated by the unexpected intricate structures of radio echoes from the bottom of the Antarctic ice sheet, Nye & Berry [1] conducted ultrasound pulse experiments on a rough surface, allowing them to establish the emergence of singularities in wave trains, optical vortexes. These ar ...
... 1. Introduction Motivated by the unexpected intricate structures of radio echoes from the bottom of the Antarctic ice sheet, Nye & Berry [1] conducted ultrasound pulse experiments on a rough surface, allowing them to establish the emergence of singularities in wave trains, optical vortexes. These ar ...
Quantification of retinal layer thickness changes in acute macular
... the interdigitation zone (IZ), the ellipsoid zone (EZ) and the external limiting membrane (ELM).2 3 Over time scotomas may fade and subsequent thinning of ONL ensues.2 4 Beside spectral domain optical coherence tomography (SD-OCT), nearinfrared reflectance (NIR) imaging best identifies the typical AMN ...
... the interdigitation zone (IZ), the ellipsoid zone (EZ) and the external limiting membrane (ELM).2 3 Over time scotomas may fade and subsequent thinning of ONL ensues.2 4 Beside spectral domain optical coherence tomography (SD-OCT), nearinfrared reflectance (NIR) imaging best identifies the typical AMN ...
Inducing Vortices in a Bose-Einstein Condensate using light beams
... leads to the same quantization condition for the atoms taking the role of electrons in a superconductor. Further the structure of vortices and dynamics of vortex creation is interesting to study and information on dissipation mechanisms and long range order can be gained from this. Especially intere ...
... leads to the same quantization condition for the atoms taking the role of electrons in a superconductor. Further the structure of vortices and dynamics of vortex creation is interesting to study and information on dissipation mechanisms and long range order can be gained from this. Especially intere ...
Sparse synthetic aperture with Fresnel elements (S
... or very small objects. Since the resolving power of a conventional diffraction-limited optical imaging system is determined by its aperture size [1], high resolution must be sacrificed to achieve a compact sized system or vice versa. Therefore, the desire to achieve ultra-fine angular resolution in ...
... or very small objects. Since the resolving power of a conventional diffraction-limited optical imaging system is determined by its aperture size [1], high resolution must be sacrificed to achieve a compact sized system or vice versa. Therefore, the desire to achieve ultra-fine angular resolution in ...
Medical Applications of Lasers: Diversity is Key to Success
... photograph requires the eye to be dilated which is not possible for some patients. In contrast, a retinal scanner obtains an image by rastering a collimated visible laser across the back of the eyeball and detecting backscatter using an avalanche photodiode (APD). Early instruments used a single las ...
... photograph requires the eye to be dilated which is not possible for some patients. In contrast, a retinal scanner obtains an image by rastering a collimated visible laser across the back of the eyeball and detecting backscatter using an avalanche photodiode (APD). Early instruments used a single las ...
Quantum imaging and information
... concepts are connected to quantum measurement theory and for this reason have the potential for practical use in metrology or measurement based communication technology. The research I present aims to answer the question: What are practical applications of these effects and what are the limits of th ...
... concepts are connected to quantum measurement theory and for this reason have the potential for practical use in metrology or measurement based communication technology. The research I present aims to answer the question: What are practical applications of these effects and what are the limits of th ...
Analysis of Tilted Grating Etalon for DWDM Demultiplexer Sommart Sang-Ngern, Non-member
... compared to that of TGE. The numerical parameters are the same as in section 3 except etalon thickness is 15 um. It can be seen from the figure that peak-to-valley ratio and FSR of general Fabry Perot transmission spectral are exactly constant. These results are the same as in theory of Fabry Perot ...
... compared to that of TGE. The numerical parameters are the same as in section 3 except etalon thickness is 15 um. It can be seen from the figure that peak-to-valley ratio and FSR of general Fabry Perot transmission spectral are exactly constant. These results are the same as in theory of Fabry Perot ...
Intravitreal Triamcinolone Acetonide for the Treatment of Diffuse
... been disappointing.2 Intravitreal injection of steroids is being investigated in the treatment of diabetic macular oedema and prospective, controlled studies are currently underway. Preliminary results indicate that although intravitreal steroid injections do improve macular oedema, it is not clear ...
... been disappointing.2 Intravitreal injection of steroids is being investigated in the treatment of diabetic macular oedema and prospective, controlled studies are currently underway. Preliminary results indicate that although intravitreal steroid injections do improve macular oedema, it is not clear ...
LASER & PHOTONICS REVIEWS REPRINT
... anisotropy stems from the lack of symmetry in the local atomic environment whilst the collectivity is caused by the dense grouping of molecules. Such anisotropy can be easily established from composite crystals [7], graphitic multishells [8], or spherically stratified media [9], and indeed found in ...
... anisotropy stems from the lack of symmetry in the local atomic environment whilst the collectivity is caused by the dense grouping of molecules. Such anisotropy can be easily established from composite crystals [7], graphitic multishells [8], or spherically stratified media [9], and indeed found in ...
Chapter 2 Optical Layout
... Surface The figure of the element and any modifications to the ideal 3-D shape. Element type The element type is a choice between a mirror, lens, grating, crystal, capillary, compound mirror, Fresnel zone plate, slit or filter. Optical properties The user can then add optical properties to account f ...
... Surface The figure of the element and any modifications to the ideal 3-D shape. Element type The element type is a choice between a mirror, lens, grating, crystal, capillary, compound mirror, Fresnel zone plate, slit or filter. Optical properties The user can then add optical properties to account f ...
MEMS Corner Cube Retroreflectors for Free-Space
... A. Calculating the DSCS for ideal and non-ideal CCRs Diffractive spreading of the reflected beam puts a fundamental limit on the performance of a long-range optical link using this device. In order to model nonflatness, misalignment and diffraction on an equal footing, a finite-element analysis of t ...
... A. Calculating the DSCS for ideal and non-ideal CCRs Diffractive spreading of the reflected beam puts a fundamental limit on the performance of a long-range optical link using this device. In order to model nonflatness, misalignment and diffraction on an equal footing, a finite-element analysis of t ...
Measurement of spectacle lenses: A review
... cylindrical and prismatic power in ophthalmic lenses, as shown in Fig. 9 is used to test single vision lenses. Humphrey [9,10] modified the focimeter to use it with non-parallel light and later used it to measure progressive power lenses, by adding a computer indicated lens movement protocol (see Fi ...
... cylindrical and prismatic power in ophthalmic lenses, as shown in Fig. 9 is used to test single vision lenses. Humphrey [9,10] modified the focimeter to use it with non-parallel light and later used it to measure progressive power lenses, by adding a computer indicated lens movement protocol (see Fi ...
Optical Fibers and Fiber-Optic Communications
... multimode fibers. Each mode will propagate with its own velocity and have a unique field distribution. Fibers with large cores and high numerical apertures will typically allow many modes to propagate. This often allows a larger amount of light to be transmitted from incoherent sources such as light ...
... multimode fibers. Each mode will propagate with its own velocity and have a unique field distribution. Fibers with large cores and high numerical apertures will typically allow many modes to propagate. This often allows a larger amount of light to be transmitted from incoherent sources such as light ...
Lateral shearing interferometry for EUV optical testing
... As demands increase for high quality optics in the Extreme Ultraviolet (EUV) and Soft X-ray (SXR) regions for applications in high resolution microscopy and lithography, it is becoming increasingly important to have a reliable means for measuring these optics. In Lateral Shearing Interferometry (LSI ...
... As demands increase for high quality optics in the Extreme Ultraviolet (EUV) and Soft X-ray (SXR) regions for applications in high resolution microscopy and lithography, it is becoming increasingly important to have a reliable means for measuring these optics. In Lateral Shearing Interferometry (LSI ...
Quantum Optics and Photonics S. Ezekiel, S. Shahriar Plasma Physics
... Raman excited spin echoes in Pr:YSO. The potential for higher temperature operation, without loss of performance, was also demonstrated in this material. Recently, we have shown that it is possible to observe Raman dark resonances above the spectral hole burning temperature in Pr:YSO. However, to ac ...
... Raman excited spin echoes in Pr:YSO. The potential for higher temperature operation, without loss of performance, was also demonstrated in this material. Recently, we have shown that it is possible to observe Raman dark resonances above the spectral hole burning temperature in Pr:YSO. However, to ac ...
Microscopic Probing and Manipulation of Ultracold
... - featuring two high-resolution microscope objectives - that allowed us for the first time to locally probe the distinctive many-body physics of an ultracold Fermi gas of 6 Li atoms at the fundamental length scale of the Fermi wavelength. A key concept of quantum many-body physics are correlations w ...
... - featuring two high-resolution microscope objectives - that allowed us for the first time to locally probe the distinctive many-body physics of an ultracold Fermi gas of 6 Li atoms at the fundamental length scale of the Fermi wavelength. A key concept of quantum many-body physics are correlations w ...
Pulsed photoacoustic techniques and glucose determination in
... The fundamental theory of photoacoustics in liquid and soft tissue was studied systematically. The distributions of photoacoustic sources in a near-infrared optical skin model were simulated by the Monte Carlo method. Expansion coefficient and specific heat of glucose solution were measured by therm ...
... The fundamental theory of photoacoustics in liquid and soft tissue was studied systematically. The distributions of photoacoustic sources in a near-infrared optical skin model were simulated by the Monte Carlo method. Expansion coefficient and specific heat of glucose solution were measured by therm ...
Optical measurement technique with telecentric lenses
... the same size. To realize this, one has to approach the object very closely with the wide angle lens (approx. 35 cm). With the tele-lens however the distance has to be very large (approx. 2 m). One may clearly observe, that with the wide angle lens the chess figures, which were arranged in equally s ...
... the same size. To realize this, one has to approach the object very closely with the wide angle lens (approx. 35 cm). With the tele-lens however the distance has to be very large (approx. 2 m). One may clearly observe, that with the wide angle lens the chess figures, which were arranged in equally s ...
Get
... developed based on the CW laser sources [14–18]. In order to improve the scan frequency precision of laser and detection sensitivity, Hodges et al. proposed a frequency stabilized cavity ringdown spectroscopy (FS-CRDS), in which the length of ringdown cavity was stabilized to an external absolute fr ...
... developed based on the CW laser sources [14–18]. In order to improve the scan frequency precision of laser and detection sensitivity, Hodges et al. proposed a frequency stabilized cavity ringdown spectroscopy (FS-CRDS), in which the length of ringdown cavity was stabilized to an external absolute fr ...
Adherent ocular bandage for clear corneal incisions used in cataract
... ex vivo animal studies using Indian ink and in vivo human studies using fluorescein show how dye can pass into the anterior chamber through a leaking incision.5–7 We believe the critical time during which the structural integrity of CCIs is most likely to be compromised is the immediate postoperativ ...
... ex vivo animal studies using Indian ink and in vivo human studies using fluorescein show how dye can pass into the anterior chamber through a leaking incision.5–7 We believe the critical time during which the structural integrity of CCIs is most likely to be compromised is the immediate postoperativ ...
Holography
... lens. Again a virtual and a real image are formed during construction. The advantage of off-axis holography is that both images do not interfere during observation and image disturbances are avoided. By tilting the reference wave (or shifting the object) it is achieved that the three diffraction ord ...
... lens. Again a virtual and a real image are formed during construction. The advantage of off-axis holography is that both images do not interfere during observation and image disturbances are avoided. By tilting the reference wave (or shifting the object) it is achieved that the three diffraction ord ...
Wave aberration of human eyes and new descriptors
... relative contribution of spherical aberration to the overall wave aberration of the eye increases when the pupil dilates, becoming the dominant HOA in degrading optical quality, followed by coma and trefoil.12,29 In this context, when describing ocular wave aberration, it is highly recommended to sp ...
... relative contribution of spherical aberration to the overall wave aberration of the eye increases when the pupil dilates, becoming the dominant HOA in degrading optical quality, followed by coma and trefoil.12,29 In this context, when describing ocular wave aberration, it is highly recommended to sp ...
Optical coherence tomography
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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.