In text you refer to OAP mirrors as 2nd etc, In fig, they are labeled
... radiation [1]. Due to the short duration of the LCLS electron pulses, a precise measurement of their length has proven difficult to obtain [2]. Improved information on the pulse length would enable researchers to better understand the time scales over which the processes they observe are happening. ...
... radiation [1]. Due to the short duration of the LCLS electron pulses, a precise measurement of their length has proven difficult to obtain [2]. Improved information on the pulse length would enable researchers to better understand the time scales over which the processes they observe are happening. ...
here - Optoelectronics Research Centre
... one dimensional, axial profile obtained at a point location while B-scan is a two dimensional, cross sectional image of the sample that is built up from a laterally displaced A-scans. OCT has less penetration depth than ultrasound techniques but its main advantage is that it can provide micron level ...
... one dimensional, axial profile obtained at a point location while B-scan is a two dimensional, cross sectional image of the sample that is built up from a laterally displaced A-scans. OCT has less penetration depth than ultrasound techniques but its main advantage is that it can provide micron level ...
\ 204 207 208 209 210 21g \ 221 /
... directly coupled into the ?ber. Such coupling is appropriate, e.g., if the beam diameter of the Waste light is smaller than the diameter of the ?ber. Alternatively, coupling With an appropriate lens may be used. For example, a converging lens may be appropriate if the beam diameter of the Waste ligh ...
... directly coupled into the ?ber. Such coupling is appropriate, e.g., if the beam diameter of the Waste light is smaller than the diameter of the ?ber. Alternatively, coupling With an appropriate lens may be used. For example, a converging lens may be appropriate if the beam diameter of the Waste ligh ...
Focus Variation – a Robust Technology for High
... ©2011 Journal of Mechanical Engineering. All rights reserved. Keywords: metrology, 3D, optical, focus variation, measurement, roughness, form, accuracy, ...
... ©2011 Journal of Mechanical Engineering. All rights reserved. Keywords: metrology, 3D, optical, focus variation, measurement, roughness, form, accuracy, ...
Diffracting fractals: new paradigms in linear wave physics
... and medical contexts). While much previous research has examined the scattering of non-fractal waves by fractal structures, there has been relatively little investigation of the consequences of fractal illumination. However, it has for example been demonstrated (both theoretically and experimentally ...
... and medical contexts). While much previous research has examined the scattering of non-fractal waves by fractal structures, there has been relatively little investigation of the consequences of fractal illumination. However, it has for example been demonstrated (both theoretically and experimentally ...
Imaging Properties of Laser-Produced Parabolic Profile Microlenses
... and the reference sphere (an ideal optical system) at the exit pupil. The PSF cross-section for five concave microlenses is presented in Fig. 2. The PSF can be considered as the representation of illumination intensity of point object. If aberrations of an optical system are small then the illuminat ...
... and the reference sphere (an ideal optical system) at the exit pupil. The PSF cross-section for five concave microlenses is presented in Fig. 2. The PSF can be considered as the representation of illumination intensity of point object. If aberrations of an optical system are small then the illuminat ...
Proteins in High Electric Fields - BYU ScholarsArchive
... This diagram shows how the die is held in place for testing. A piece of PDMS lays over top of the die to help seal the edges of the channel. To seal the PDMS to the die, an acrylic holder presses firmly against the PDMS, held in place by two screws. The screws pull against the aluminum block which t ...
... This diagram shows how the die is held in place for testing. A piece of PDMS lays over top of the die to help seal the edges of the channel. To seal the PDMS to the die, an acrylic holder presses firmly against the PDMS, held in place by two screws. The screws pull against the aluminum block which t ...
Polarization Study 1 Introduction
... 1. Normal Incidence: θ1 = 0, which results in P = 1 and ∆ = −π, 2. Grazing Incidence: θ1 = π/2, which results in P = 1 and ∆ = 0. These two cases are obvious if we consider the linearly polarized light to be made of two circular polarization components of opposite rotation. At normal incidence, the ...
... 1. Normal Incidence: θ1 = 0, which results in P = 1 and ∆ = −π, 2. Grazing Incidence: θ1 = π/2, which results in P = 1 and ∆ = 0. These two cases are obvious if we consider the linearly polarized light to be made of two circular polarization components of opposite rotation. At normal incidence, the ...
863875
... and large area fabrication flexibility in a single step [20–25]. It has also been shown that optical field patterns belonging to all 14 Bravais crystallographic lattice 3D structures can be formed by designed plane wave interference [26, 27]. By means of a spatial light modulator (SLM-) assisted app ...
... and large area fabrication flexibility in a single step [20–25]. It has also been shown that optical field patterns belonging to all 14 Bravais crystallographic lattice 3D structures can be formed by designed plane wave interference [26, 27]. By means of a spatial light modulator (SLM-) assisted app ...
Coherence Theory and Optical Coherence Tomography with Phase
... phase-sensitive light propagation • Derived coherence propagation behavior of Gaussian-Schell model sources • Derived modal decomposition for phasesensitive light • Unified analysis of conventional and quantum OCT • Showed that phase-conjugate OCT may fuse best features of C-OCT and Q-OCT ...
... phase-sensitive light propagation • Derived coherence propagation behavior of Gaussian-Schell model sources • Derived modal decomposition for phasesensitive light • Unified analysis of conventional and quantum OCT • Showed that phase-conjugate OCT may fuse best features of C-OCT and Q-OCT ...
GEOMETRIC OPTICS
... object and image heights are measured perpendicular to the optical axis and , by convention , are considered positive when the object or image extends above the optical axis and negative , below the axis . for example : if the object height is + 6cm , and the image height is -3cm , thus the transver ...
... object and image heights are measured perpendicular to the optical axis and , by convention , are considered positive when the object or image extends above the optical axis and negative , below the axis . for example : if the object height is + 6cm , and the image height is -3cm , thus the transver ...
Full-Text PDF
... expert pathologists since many benign lesions or common benign inflammatory conditions resemble malignancies upon visual investigation [1,7,8]. Hence, there is a need to develop new strategies for an accurate and precise diagnosis of melanoma. The tremendous progress in optical, electronic and compu ...
... expert pathologists since many benign lesions or common benign inflammatory conditions resemble malignancies upon visual investigation [1,7,8]. Hence, there is a need to develop new strategies for an accurate and precise diagnosis of melanoma. The tremendous progress in optical, electronic and compu ...
Performance of extended depth of field systems and
... MTF and DOF. In this paper, we demonstrate that for any symmetric revolution optic there is an absolute trade-off between MTF and DOF. This limit is fixed by diffraction and consequently cannot be overcome. As this limit finds a practical application for symmetric WFC pupil, it will be called the WF ...
... MTF and DOF. In this paper, we demonstrate that for any symmetric revolution optic there is an absolute trade-off between MTF and DOF. This limit is fixed by diffraction and consequently cannot be overcome. As this limit finds a practical application for symmetric WFC pupil, it will be called the WF ...
PDF
... much less expensive (~5 times less) than the Ti:Sapphire femtosecond laser and pump. In addition, the Nd:Glass laser is compact (630mm x 320 mm x 160 mm) and can be more easily integrated into a robust and portable system for OCT imaging in the clinical setting. We have also designed a reflective gr ...
... much less expensive (~5 times less) than the Ti:Sapphire femtosecond laser and pump. In addition, the Nd:Glass laser is compact (630mm x 320 mm x 160 mm) and can be more easily integrated into a robust and portable system for OCT imaging in the clinical setting. We have also designed a reflective gr ...
Second Harmonic Generation Technique and its Applications
... the second one called the bound wave, propagating with the velocity given by the refractive index of fundamental wave. This can be understood from the following reasoning: the fundamental wave arriving at a given point will excite dipoles which will radiate electric field at the harmonic frequen ...
... the second one called the bound wave, propagating with the velocity given by the refractive index of fundamental wave. This can be understood from the following reasoning: the fundamental wave arriving at a given point will excite dipoles which will radiate electric field at the harmonic frequen ...
Fiber optic devices and systems
... The working principle and the basic parameters of an optical fiber are introduced in this chapter. The various types of optical fibers are then described, in particular, non-communication types are discussed in detail. This is then followed by the treatment of applications of fibers with particular ...
... The working principle and the basic parameters of an optical fiber are introduced in this chapter. The various types of optical fibers are then described, in particular, non-communication types are discussed in detail. This is then followed by the treatment of applications of fibers with particular ...
Wave aberration of human eyes and new descriptors
... amount of light that reaches the retina. As in any optical system, the size of the pupil has important consequences for image formation. A smaller pupil increases the depth of focus and minimizes the effects of higher-order aberrations (HOAs) by reducing the size of the blur circle onto the retina, ...
... amount of light that reaches the retina. As in any optical system, the size of the pupil has important consequences for image formation. A smaller pupil increases the depth of focus and minimizes the effects of higher-order aberrations (HOAs) by reducing the size of the blur circle onto the retina, ...
K.C. Neuman and S.M. Block, "Optical Trapping"
... gradient force, must be considered. The gradient force, as the name suggests, arises from the fact that a dipole in an inhomogeneous electric field experiences a force in the direction of the field gradient.67 In an optical trap, the laser induces fluctuating dipoles in the dielectric particle, and ...
... gradient force, must be considered. The gradient force, as the name suggests, arises from the fact that a dipole in an inhomogeneous electric field experiences a force in the direction of the field gradient.67 In an optical trap, the laser induces fluctuating dipoles in the dielectric particle, and ...
Clutter elimination for deep clinical optoacoustic imaging using
... imaging plane, but are exposed to the irradiating laser light (Fig. 2a). The resulting strong OA transients, even though detected by the probe at an angle where elevational sensitivity is low, can obscure the weak OA signals from structures deep inside the tissue. Echo clutter (Fig. 2b) may be gener ...
... imaging plane, but are exposed to the irradiating laser light (Fig. 2a). The resulting strong OA transients, even though detected by the probe at an angle where elevational sensitivity is low, can obscure the weak OA signals from structures deep inside the tissue. Echo clutter (Fig. 2b) may be gener ...
Optical coupling devices
... the line of each roof apex (a re?ection of this in the a receiving ?bre as discussed in relation to FIG. 3 opposite face is equally counted.) The negligible pro 60 above. Emitted rays 49 and received rays 51 clearly portion of rays striking the vertex of the cube is ignored. illustrate bundle 48’s d ...
... the line of each roof apex (a re?ection of this in the a receiving ?bre as discussed in relation to FIG. 3 opposite face is equally counted.) The negligible pro 60 above. Emitted rays 49 and received rays 51 clearly portion of rays striking the vertex of the cube is ignored. illustrate bundle 48’s d ...
Lec03 - nptel
... fiber from the side does not propagate along the fiber. The only option thus available with us is to launch the light through the tip of the fiber. That is, in order to guide light along the fiber, the light must be incident from the tip of the optical fiber. The red ray of light in figure 3.2 expla ...
... fiber from the side does not propagate along the fiber. The only option thus available with us is to launch the light through the tip of the fiber. That is, in order to guide light along the fiber, the light must be incident from the tip of the optical fiber. The red ray of light in figure 3.2 expla ...
CARMENES in SPIE 2014. Building a fiber link for CARMENES
... CARMENES is a high-resolution spectroscopy project for the 3.5 m telescope at the Calar Alto Observatory, consisting of two R ∼ 82000 echelle spectrographs, one for the visual range from 550 nm to 950 nm (VIS) and one for the near infrared range from 950 nm to 1700 nm (NIR). The main scientific goal ...
... CARMENES is a high-resolution spectroscopy project for the 3.5 m telescope at the Calar Alto Observatory, consisting of two R ∼ 82000 echelle spectrographs, one for the visual range from 550 nm to 950 nm (VIS) and one for the near infrared range from 950 nm to 1700 nm (NIR). The main scientific goal ...
A high-resolution magnetic tweezer for single
... by 3.8 nm in the sample plane, while the first RICM fringe shifted by 62 nm (Figure 4d and e). Thus, our RICM strategy provides roughly a 16-fold improvement in instrumental resolution. Given the 1 nm intrinsic resolution of diffraction (10), we expect the RICM-based MT will have an intrinsic resolut ...
... by 3.8 nm in the sample plane, while the first RICM fringe shifted by 62 nm (Figure 4d and e). Thus, our RICM strategy provides roughly a 16-fold improvement in instrumental resolution. Given the 1 nm intrinsic resolution of diffraction (10), we expect the RICM-based MT will have an intrinsic resolut ...
Polarimeter - ScholarWorks@UNO
... predetermined frequency before transmitting it to the medium and then modulating the light leaving the me dium with another quarter-wave retarder which oper ates at a frequency ?ve times that of the predetermined frequency of modulation of the light transmitted to the ...
... predetermined frequency before transmitting it to the medium and then modulating the light leaving the me dium with another quarter-wave retarder which oper ates at a frequency ?ve times that of the predetermined frequency of modulation of the light transmitted to the ...
Light–matter interaction induces a single positive vortex with swirling
... charge, or winding numbers, of the defect [24]. To prove the optical induction of the matter vortex, and the subsequent transfer from spin to orbital angular momentum, which is mediated by the light–matter interaction, a circularly polarized laser beam of wavelength λ = 632 nm, power P = 0.55 mW is ...
... charge, or winding numbers, of the defect [24]. To prove the optical induction of the matter vortex, and the subsequent transfer from spin to orbital angular momentum, which is mediated by the light–matter interaction, a circularly polarized laser beam of wavelength λ = 632 nm, power P = 0.55 mW is ...
Microscopy
Microscopy is the technical field of using microscopes to view objects and areas of objects that cannot be seen with the naked eye (objects that are not within the resolution range of the normal eye). There are three well-known branches of microscopy: optical, electron, and scanning probe microscopy.Optical and electron microscopy involve the diffraction, reflection, or refraction of electromagnetic radiation/electron beams interacting with the specimen, and the collection of the scattered radiation or another signal in order to create an image. This process may be carried out by wide-field irradiation of the sample (for example standard light microscopy and transmission electron microscopy) or by scanning of a fine beam over the sample (for example confocal laser scanning microscopy and scanning electron microscopy). Scanning probe microscopy involves the interaction of a scanning probe with the surface of the object of interest. The development of microscopy revolutionized biology and remains an essential technique in the life and physical sciences.