Tutorial on Optomechanical Beam Steering Mechanisms
... entire assembly can be tilted much like a tilt block to translate the beam, thus combining 2 functions into one optical element. The surface tension of the lubricating film holds the lenses together, eliminating any need for guides to control the moving element. This mechanism can also be adapted to ...
... entire assembly can be tilted much like a tilt block to translate the beam, thus combining 2 functions into one optical element. The surface tension of the lubricating film holds the lenses together, eliminating any need for guides to control the moving element. This mechanism can also be adapted to ...
Optical Fibers in Communication
... Two types of light source are used with fibers, LEDs and Laser Diodes. LEDs can operate in the near infrared (the main wavelengths used in fibers are 1300nm and 1550nm, along with 850nm for some applications); they can emit light at 850nm and 1300nm. They also have the advantages of long lifetimes a ...
... Two types of light source are used with fibers, LEDs and Laser Diodes. LEDs can operate in the near infrared (the main wavelengths used in fibers are 1300nm and 1550nm, along with 850nm for some applications); they can emit light at 850nm and 1300nm. They also have the advantages of long lifetimes a ...
Preface The history of science is, to a considerable degree, the
... The history of science is, to a considerable degree, the history of invention, development and perfecting of imaging methods and devices. Modern science began with the invention and application of optical telescope and microscope in the beginning of 17-th century by Galileo Galilei (1564-1642), Anth ...
... The history of science is, to a considerable degree, the history of invention, development and perfecting of imaging methods and devices. Modern science began with the invention and application of optical telescope and microscope in the beginning of 17-th century by Galileo Galilei (1564-1642), Anth ...
as PDF
... Once you have done a design iteration using the 8 steps described in the previous pages you should check whether this design is practial at all. Three things that you can easily check are the input slit width, diffraction limit of optics, and diffraction limit of grating as described below. ...
... Once you have done a design iteration using the 8 steps described in the previous pages you should check whether this design is practial at all. Three things that you can easily check are the input slit width, diffraction limit of optics, and diffraction limit of grating as described below. ...
Green's function formulation for third-harmonic generation microscopy
... Third-harmonic generation from an interface perpendicular to the optical axis was illustrated by Barad et al.7 With the Green’s function model we are able to investigate THG from interfaces of different orientations. Figure 4 shows that THG signals can arise from an interface perpendicular or parall ...
... Third-harmonic generation from an interface perpendicular to the optical axis was illustrated by Barad et al.7 With the Green’s function model we are able to investigate THG from interfaces of different orientations. Figure 4 shows that THG signals can arise from an interface perpendicular or parall ...
Issues With Telescopes
... The Mount Palomar telescope would not be able to resolve these objects It would not be able to “see” the moon ! ...
... The Mount Palomar telescope would not be able to resolve these objects It would not be able to “see” the moon ! ...
Gauthier Abstracts - Department of Electronics
... An enhanced ray optics model is applied to the study of the optical levitation and trapping properties of a glass cubic object. It is found that for certain highly symmetric orientations simultaneous force and torque equilibrium can exist in the lowest-order TEM00 laser beam profile. For analytical ...
... An enhanced ray optics model is applied to the study of the optical levitation and trapping properties of a glass cubic object. It is found that for certain highly symmetric orientations simultaneous force and torque equilibrium can exist in the lowest-order TEM00 laser beam profile. For analytical ...
Extraordinary optical transmission by interference of diffracted
... generated by the subwavelength apertures, and classical as well as quantum mechanical theory of this process has been developed [16, 17]. In the present paper, based on the newly reported concept of superposition of boundary diffraction waves using a Lloyd’s mirror [18, 19], we present experimental ...
... generated by the subwavelength apertures, and classical as well as quantum mechanical theory of this process has been developed [16, 17]. In the present paper, based on the newly reported concept of superposition of boundary diffraction waves using a Lloyd’s mirror [18, 19], we present experimental ...
Evaluation and application of spatial light modulators for
... different grey values. In this way, the projection pattern can be adapted by local variation of the line frequency, the pattern type, and the intensity until the best possible evaluation is achieved. An important feature of the panel is also the high contrast (>0,9). In contrast to DMD that have a h ...
... different grey values. In this way, the projection pattern can be adapted by local variation of the line frequency, the pattern type, and the intensity until the best possible evaluation is achieved. An important feature of the panel is also the high contrast (>0,9). In contrast to DMD that have a h ...
Realization of optical carpets in the Talbot and
... Received 10 Sep 2009; revised 16 Oct 2009; accepted 28 Oct 2009; published 2 Nov 2009 ...
... Received 10 Sep 2009; revised 16 Oct 2009; accepted 28 Oct 2009; published 2 Nov 2009 ...
Ph 76 ADVANCED PHYSICS LABORATORY — ATOMIC AND
... The term αI/Γ corresponds to the s/2 term above (note Isat is proportional to Γ). A more complete derivation of the result, with all the normalization constants, is given in Milonni and Eberly (1988), and in Cohen-Tannoudji et al. (1992), but this gives you the basic idea. Assuming a fixed vapor temp ...
... The term αI/Γ corresponds to the s/2 term above (note Isat is proportional to Γ). A more complete derivation of the result, with all the normalization constants, is given in Milonni and Eberly (1988), and in Cohen-Tannoudji et al. (1992), but this gives you the basic idea. Assuming a fixed vapor temp ...
Ph 76 ADVANCED PHYSICS LABORATORY — ATOMIC
... The term αI/Γ corresponds to the s/2 term above (note Isat is proportional to Γ). A more complete derivation of the result, with all the normalization constants, is given in Milonni and Eberly (1988), and in Cohen-Tannoudji et al. (1992), but this gives you the basic idea. Assuming a fixed vapor temp ...
... The term αI/Γ corresponds to the s/2 term above (note Isat is proportional to Γ). A more complete derivation of the result, with all the normalization constants, is given in Milonni and Eberly (1988), and in Cohen-Tannoudji et al. (1992), but this gives you the basic idea. Assuming a fixed vapor temp ...
Laser Chemosensor with Rapid Responsivity and Inherent Memory
... exposure over the initial intensity. A similar change in the PLQY of the PIM-1 film was also observed. It decreased from 21% (pre-exposure) to 3% (post-exposure). In the cumulative sensing test, the sample was first exposed to nitrogen vapor for 60 s, and then exposed to DNB vapor for 60 s leading t ...
... exposure over the initial intensity. A similar change in the PLQY of the PIM-1 film was also observed. It decreased from 21% (pre-exposure) to 3% (post-exposure). In the cumulative sensing test, the sample was first exposed to nitrogen vapor for 60 s, and then exposed to DNB vapor for 60 s leading t ...
Total internal reflection holography for optical interconnections
... the needs of optical interconnections. They are efficient and can serve as focusing elements, imaging elements, beam deflectors, and fan-out elements. Almost any shape of structure can be realized. This flexibility allows complex and compact interconnections. Two different types of diffractive optic ...
... the needs of optical interconnections. They are efficient and can serve as focusing elements, imaging elements, beam deflectors, and fan-out elements. Almost any shape of structure can be realized. This flexibility allows complex and compact interconnections. Two different types of diffractive optic ...
Optical amplifiers
... will have repeated bouts of physical sickness. So when you pump this guy with, say, a pint of beer, he is excited into a higher state of drunkenness, just as the erbium ions are excited into higher energy states when pumped by a laser. If you continue the pumping, feeding the student with beer and t ...
... will have repeated bouts of physical sickness. So when you pump this guy with, say, a pint of beer, he is excited into a higher state of drunkenness, just as the erbium ions are excited into higher energy states when pumped by a laser. If you continue the pumping, feeding the student with beer and t ...
Self-rotation of resonant elliptically polarized light in collision
... atomic vapors was related to understanding the polarization of gas laser emission [17]. Later, SR was theoretically examined [18–21] in the context of high-resolution polarization spectroscopy [22]. The theory of SR has also been studied in relation to nonlinear magneto-optical rotation [23,24] and ...
... atomic vapors was related to understanding the polarization of gas laser emission [17]. Later, SR was theoretically examined [18–21] in the context of high-resolution polarization spectroscopy [22]. The theory of SR has also been studied in relation to nonlinear magneto-optical rotation [23,24] and ...
A New Fiber Optic Spring
... the sensing section. The tip of another ber arm of the coupler was immersed into refractive index matching liquid (cedar oil, microscope grade) in order to get minimum back reection. Also, the laser source light intensity was measured with a universal optical power meter (Melles Griot) via detecto ...
... the sensing section. The tip of another ber arm of the coupler was immersed into refractive index matching liquid (cedar oil, microscope grade) in order to get minimum back reection. Also, the laser source light intensity was measured with a universal optical power meter (Melles Griot) via detecto ...
Optical Fibre Communications
... then light only propagates along a Single Mode or path — The core is so small that the light spot is diffraction limited ...
... then light only propagates along a Single Mode or path — The core is so small that the light spot is diffraction limited ...
3-D Ultrahigh Resolution Optical Coherence Tomography with
... noninvasive optical biopsy of the human retina (D. Huang, et al, 1991). OCT is based on low coherence interferometry (R. C. Youngquist, et al, 1987), in which the pattern of interference between the reference and object beams is used to determine the amount of light reflected back from a certain poi ...
... noninvasive optical biopsy of the human retina (D. Huang, et al, 1991). OCT is based on low coherence interferometry (R. C. Youngquist, et al, 1987), in which the pattern of interference between the reference and object beams is used to determine the amount of light reflected back from a certain poi ...
Compare TIRF Geometries
... TIRF is “...a method uniquely suited to image the plasma membrane with its associated organelles and macromolecules in living cells. The method shows even the smallest vesicles made by cells, and can image the dynamics of single protein molecules.” [Steyer JA, Almers W. A real-time view of life with ...
... TIRF is “...a method uniquely suited to image the plasma membrane with its associated organelles and macromolecules in living cells. The method shows even the smallest vesicles made by cells, and can image the dynamics of single protein molecules.” [Steyer JA, Almers W. A real-time view of life with ...
Metamaterials at Optical Frequencies: Fabrication and Measurements
... Masks are generally made using electron-beam lithography (EBL), which has been employed as the tool of choice in the fabrication of near-infrared or optical-frequency metamaterials because of its high resolution, moderate cost and flexibility (allowing designs to be easily changed). However, for mas ...
... Masks are generally made using electron-beam lithography (EBL), which has been employed as the tool of choice in the fabrication of near-infrared or optical-frequency metamaterials because of its high resolution, moderate cost and flexibility (allowing designs to be easily changed). However, for mas ...
[pdf]
... Significant interest to the investigations of polarization phenomena accompanying light propagation through optically dense media is caused by the possible applicability of these effects for tissue characterization and imaging in biology and medicine.1–4 One of the general properties of a multiple s ...
... Significant interest to the investigations of polarization phenomena accompanying light propagation through optically dense media is caused by the possible applicability of these effects for tissue characterization and imaging in biology and medicine.1–4 One of the general properties of a multiple s ...
Holographic fabrication of 3D photonic crystals using silicon based
... polymer. The pre-solution was poured into the container. After the bubbles were blown away, the pre-polymer was cured on a hot-plate at 130 °C for 90 minutes as shown in Fig. 1(b). The prism was then removed and a silicon chip was placed on the inner surface of the PDMS mold with polished sides to r ...
... polymer. The pre-solution was poured into the container. After the bubbles were blown away, the pre-polymer was cured on a hot-plate at 130 °C for 90 minutes as shown in Fig. 1(b). The prism was then removed and a silicon chip was placed on the inner surface of the PDMS mold with polished sides to r ...
Doppler-Free Spectroscopy MIT Department of Physics
... Consider the effects of two such beams on a gaseous sample as the laser frequency ν scans upward toward ν0 . For a specific ν < ν0 , the group of atoms that interacts with the pump beam is that group which counterpropagates along this beam with the requisite velocity v < 0 that tunes the beam and at ...
... Consider the effects of two such beams on a gaseous sample as the laser frequency ν scans upward toward ν0 . For a specific ν < ν0 , the group of atoms that interacts with the pump beam is that group which counterpropagates along this beam with the requisite velocity v < 0 that tunes the beam and at ...
Measurement of the Number of Atoms in a Magneto
... Magneto-optical traps (MOTs) are used to trap neutral atoms. This is more difficult than trapping ions, since one cannot just use electric and magnetic field gradients to trap the atoms. Instead, six laser beams “push” the atoms into the center of the MOT. A magnetic field then produces a potential ...
... Magneto-optical traps (MOTs) are used to trap neutral atoms. This is more difficult than trapping ions, since one cannot just use electric and magnetic field gradients to trap the atoms. Instead, six laser beams “push” the atoms into the center of the MOT. A magnetic field then produces a potential ...
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.