Paraxial Optics
... rotating the rays to reach the perpendicular to the incidence point, the rotation is in the clockwise direction. Fig. 4 shows a situation where all the variables are positive. Mirrors A simple and useful optical system is formed by a reflecting surface. The reflection law was previously described, a ...
... rotating the rays to reach the perpendicular to the incidence point, the rotation is in the clockwise direction. Fig. 4 shows a situation where all the variables are positive. Mirrors A simple and useful optical system is formed by a reflecting surface. The reflection law was previously described, a ...
PH-101 Principles of Physics 3 class hours 2 laboratory hours 4
... electric and magnetic fields, electromagnetic waves, optics and topics in modern physics. PH-229 Introduction to Photonics 2 class hours 1 recitation hour 3 laboratory hours 4 credits Corequisite: MA-114 Topics in optics related to lasers and optical fiber and devices for modulating and directing si ...
... electric and magnetic fields, electromagnetic waves, optics and topics in modern physics. PH-229 Introduction to Photonics 2 class hours 1 recitation hour 3 laboratory hours 4 credits Corequisite: MA-114 Topics in optics related to lasers and optical fiber and devices for modulating and directing si ...
6_Line_Communication
... immunity to reflected light and low cost. LD has an output which is coherent and therefore has a very narrow spectrum. It has high output power and high coupling efficiency. 2. Amplifiers: Semiconductor amplifiers or doped fibre amplifiers are used to limit fibre losses and to increase repeater spac ...
... immunity to reflected light and low cost. LD has an output which is coherent and therefore has a very narrow spectrum. It has high output power and high coupling efficiency. 2. Amplifiers: Semiconductor amplifiers or doped fibre amplifiers are used to limit fibre losses and to increase repeater spac ...
Click
... The ray which obeys Snell's law of refraction is known as ordinary ray or o-ray. The other ray does not obey Snell's law is called extraordinary ray or e-ray. ...
... The ray which obeys Snell's law of refraction is known as ordinary ray or o-ray. The other ray does not obey Snell's law is called extraordinary ray or e-ray. ...
Negative refraction and Negative refractive index
... angle of the wave vector exceeds the incident angle and a critical angle ( θc = sin −1 (s x N eff / N 0 ) ) can be defined as the refracted angle of the wave vector reaches 90° . When the incident angle exceeds the critical angle, total reflection does not occur, but the index of refraction becomes ...
... angle of the wave vector exceeds the incident angle and a critical angle ( θc = sin −1 (s x N eff / N 0 ) ) can be defined as the refracted angle of the wave vector reaches 90° . When the incident angle exceeds the critical angle, total reflection does not occur, but the index of refraction becomes ...
Coherence scanning interferometry: linear theory of surface
... The theory that underpins this work is based on a linear theory of 3D imaging that was first published in the context of optical holography by Wolf [12], and Dandliker and Weiss [13]. Using this approach the performance of 3D imaging techniques including digital holography, confocal microscopy, CSI, ...
... The theory that underpins this work is based on a linear theory of 3D imaging that was first published in the context of optical holography by Wolf [12], and Dandliker and Weiss [13]. Using this approach the performance of 3D imaging techniques including digital holography, confocal microscopy, CSI, ...
Slide 1
... Abstract: Acousto-optic (AO) imaging is a new dual-wave modality that combines ultrasound with diffuse light to achieve deep-tissue imaging of optical properties with the spatial resolution of ultrasound. In this technique, the sample is simultaneously insonified by an ultrasound beam and illuminate ...
... Abstract: Acousto-optic (AO) imaging is a new dual-wave modality that combines ultrasound with diffuse light to achieve deep-tissue imaging of optical properties with the spatial resolution of ultrasound. In this technique, the sample is simultaneously insonified by an ultrasound beam and illuminate ...
Imaging the near field
... In the previous section we gave some qualitative arguments as to the properties of metal-dielectric multilayer stacks and is clear that for P-polarized light in the quasistatic limit this structure would behave as a near-perfect ‘fibre optic bundle’. In the electrostatic (magnetostatic) limit of larg ...
... In the previous section we gave some qualitative arguments as to the properties of metal-dielectric multilayer stacks and is clear that for P-polarized light in the quasistatic limit this structure would behave as a near-perfect ‘fibre optic bundle’. In the electrostatic (magnetostatic) limit of larg ...
Surface plasmon resonance sensors based on uniform
... been employed. Side-polished fibers (D-type fibers) have been widely used.4 – 6 Another option is chemical etching with hydrofluoric acid (HF) to eliminate fiber cladding.7,8 The mechanical strip of the fiber cladding has also been used.8 However, these methods only provide access to a relatively sm ...
... been employed. Side-polished fibers (D-type fibers) have been widely used.4 – 6 Another option is chemical etching with hydrofluoric acid (HF) to eliminate fiber cladding.7,8 The mechanical strip of the fiber cladding has also been used.8 However, these methods only provide access to a relatively sm ...
Near-field amplitude and phase recovery using phase
... evanescent fields[10], or a combination of both[11]. There is interest in measuring the amplitude and phase changes separately, since these signals contain different but complimentary information about the sample. In sSNOM, the tip is raster-scanned over the sample surface in close proximity and for ...
... evanescent fields[10], or a combination of both[11]. There is interest in measuring the amplitude and phase changes separately, since these signals contain different but complimentary information about the sample. In sSNOM, the tip is raster-scanned over the sample surface in close proximity and for ...
Lecture 18
... microscope's ability to transfer contrast from the specimen to the image plane at specific resolution. • Incorporates resolution and contrast into one specification ...
... microscope's ability to transfer contrast from the specimen to the image plane at specific resolution. • Incorporates resolution and contrast into one specification ...
Orthogonal Frequency Division Multiplexing (OFDM) in Optical
... very hot topic [1-4]. There are two strategies for transmitting the quasi-analogue OFDM signal. One solution is given by optical I-Q-modulation in conjunction with coherent detection (CO-OFDM) [2, 3]. A second method restricts to a real OFDM signal transmitted with intensity modulation and direct de ...
... very hot topic [1-4]. There are two strategies for transmitting the quasi-analogue OFDM signal. One solution is given by optical I-Q-modulation in conjunction with coherent detection (CO-OFDM) [2, 3]. A second method restricts to a real OFDM signal transmitted with intensity modulation and direct de ...
MINIATURIZED FLUORESCENCE EXCITATION PLATFORM WITH OPTICAL FIBER FOR BIO-DETECTION CHIPS
... It’s a quite highly integrated fluorescent microsystem, but the chip is hard to clean or cannot repeat to use. Hubnera et al. proposed a transportable miniaturized fiber-pigtailed measurement system for fluorescence spectroscopy in microfluidic channels [3]. Excitation light was launched into the mi ...
... It’s a quite highly integrated fluorescent microsystem, but the chip is hard to clean or cannot repeat to use. Hubnera et al. proposed a transportable miniaturized fiber-pigtailed measurement system for fluorescence spectroscopy in microfluidic channels [3]. Excitation light was launched into the mi ...
Microscope Project for Undergraduate Laboratories Abstract
... Plano-convex and achromatic lenses of various focal lengths were purchased from ThorLabs or Edmund Optics to allow students to tinker with a different lenses. Extras lenses with focal lengths preferred by the students, such as 30 mm, 50 mm, and 100 mm, were also purchased to ensure there were enough ...
... Plano-convex and achromatic lenses of various focal lengths were purchased from ThorLabs or Edmund Optics to allow students to tinker with a different lenses. Extras lenses with focal lengths preferred by the students, such as 30 mm, 50 mm, and 100 mm, were also purchased to ensure there were enough ...
Strategies for the compensation of specimen
... medium such as skin, index matching is more difficult because each layer has different optical properties. If however, one were able to choose any refractive index for the immersion medium, it would be possible, for a given focusing situation, to find the optimum value. If the immersion medium is no ...
... medium such as skin, index matching is more difficult because each layer has different optical properties. If however, one were able to choose any refractive index for the immersion medium, it would be possible, for a given focusing situation, to find the optimum value. If the immersion medium is no ...
Pulsed-source and swept-source spectral-domain optical coherence tomography with reduced motion artifacts
... source. Since the optical spectrum is continuously changed in time, each of the CCD pixels receives its corresponding spectral component only for a short time interval. As with pulsed broad bandwidth illumination, the signal loss by axial motion can be described with Eq. (1) where τ corresponds to t ...
... source. Since the optical spectrum is continuously changed in time, each of the CCD pixels receives its corresponding spectral component only for a short time interval. As with pulsed broad bandwidth illumination, the signal loss by axial motion can be described with Eq. (1) where τ corresponds to t ...
The physics of the compact disc
... will also be affected by the distance of the track from the lens. Ideally this equals the focal length of the lens, but if the disc is not perfectly flat or if it does not sit perfectly in the player the distance could vary. The depth of focus is the range of distances over which the spot of light i ...
... will also be affected by the distance of the track from the lens. Ideally this equals the focal length of the lens, but if the disc is not perfectly flat or if it does not sit perfectly in the player the distance could vary. The depth of focus is the range of distances over which the spot of light i ...
Optimized back-focal-plane interferometry directly measures forces
... However, using the deflection of the trapping beam to measure the motion of the sample connected the measurements of positions and of momenta. The deflection of the light cone used by Ghislain and Webb naturally contains information on the change in the momentum of the photons, as S. Smith et al. [ ...
... However, using the deflection of the trapping beam to measure the motion of the sample connected the measurements of positions and of momenta. The deflection of the light cone used by Ghislain and Webb naturally contains information on the change in the momentum of the photons, as S. Smith et al. [ ...
Measured limits to contamination of optical
... close 1&5 cm2 to the input mirror. Each vacuum chamber was a 20-cm-diameter, 66cm-long tube constructed of stainless steel with Kovarsealed Pyrex windows at both ends. Before installing the mirrors, the beryllium–copper springs, and the specimen, we vacuum baked the vacuum chamber and all other comp ...
... close 1&5 cm2 to the input mirror. Each vacuum chamber was a 20-cm-diameter, 66cm-long tube constructed of stainless steel with Kovarsealed Pyrex windows at both ends. Before installing the mirrors, the beryllium–copper springs, and the specimen, we vacuum baked the vacuum chamber and all other comp ...
Coherence properties of light propagated through a
... information content than fully coherent wavefields and that the use of partially coherent illumination in imaging can yield higher spatial resolution.2 Hence, the characterisation of the coherence properties of a wavefield embodied in the MOI is of critical importance for applications including imag ...
... information content than fully coherent wavefields and that the use of partially coherent illumination in imaging can yield higher spatial resolution.2 Hence, the characterisation of the coherence properties of a wavefield embodied in the MOI is of critical importance for applications including imag ...