Use of Broadband, Continuous-Wave Diode Lasers in Cavity Ring
... ø 99.9%). Figure 2 shows the setup in m ore detail. We separated the rst-order modulated beam (approximately 5 mW ) with an iris and directed this beam into the optical cavity. The m aximum switching rate is determined not by the AOM controller but rather by the amount of time needed for intensity ...
... ø 99.9%). Figure 2 shows the setup in m ore detail. We separated the rst-order modulated beam (approximately 5 mW ) with an iris and directed this beam into the optical cavity. The m aximum switching rate is determined not by the AOM controller but rather by the amount of time needed for intensity ...
Lenses: Bending Light
... that Steve would promptly take apart – not always to his father's liking. But Steve wanted to know what made these things work. Now he runs his own laboratory at the Australian National University, where he works on harnessing the power of optics to detect and treat diseases. Steve spends his days d ...
... that Steve would promptly take apart – not always to his father's liking. But Steve wanted to know what made these things work. Now he runs his own laboratory at the Australian National University, where he works on harnessing the power of optics to detect and treat diseases. Steve spends his days d ...
Click To
... period of an array of permanent magnets arranged in a repelling configuration. It would be desirable to be able to vary the stress in a portion of an optical fiber segment and to vary the birefringence in the entire length of the segment. For information about this technology, please contact: Jeff A ...
... period of an array of permanent magnets arranged in a repelling configuration. It would be desirable to be able to vary the stress in a portion of an optical fiber segment and to vary the birefringence in the entire length of the segment. For information about this technology, please contact: Jeff A ...
Reflection-mode scanning near-field optical microscopy: Influence
... may be obtained where the resolution is determined by the source size and the source-sample separation, rather than the wavelength, as is the case in conventional far-field microscopy. Typically, this source consists of an aperture of dimensions less than 150 nm in a tapered and metal-coated optical ...
... may be obtained where the resolution is determined by the source size and the source-sample separation, rather than the wavelength, as is the case in conventional far-field microscopy. Typically, this source consists of an aperture of dimensions less than 150 nm in a tapered and metal-coated optical ...
The optics and performance of dual-focus fluorescence correlation
... has seen a tremendous renaissance over the last decade due to the wide availability of affordable laser sources, low-noise single-photon detectors, and microscope objectives with nearly perfect imaging quality at high numerical apertures (N.A.). In particular, FCS has become an invaluable tool for s ...
... has seen a tremendous renaissance over the last decade due to the wide availability of affordable laser sources, low-noise single-photon detectors, and microscope objectives with nearly perfect imaging quality at high numerical apertures (N.A.). In particular, FCS has become an invaluable tool for s ...
Isolated hexaphenyl nanofibers as optical waveguides
... with the wavelength, ⑀ s the dielectric constant of the substrate and a the fiber width. In the present case we have ⑀ 储 / ⑀⬜ ⫽2.5. 10 From the value of the refractive index for an isotropic p-6P film for ⫽425 nm, 7 one finds ⑀⬜ ⫽1.9 and ⑀ 储 ⫽4.8. With the spectroscopically determined propagation ...
... with the wavelength, ⑀ s the dielectric constant of the substrate and a the fiber width. In the present case we have ⑀ 储 / ⑀⬜ ⫽2.5. 10 From the value of the refractive index for an isotropic p-6P film for ⫽425 nm, 7 one finds ⑀⬜ ⫽1.9 and ⑀ 储 ⫽4.8. With the spectroscopically determined propagation ...
LOC09a Snell`s Law
... If the index of refraction is greater in the refracted medium than the incident medium, then the light will refract closer to the normal, as shown in Figure 1. If, on the other hand, the index of refraction is greater in the incident medium than in the refracted medium, then the light will bend away ...
... If the index of refraction is greater in the refracted medium than the incident medium, then the light will refract closer to the normal, as shown in Figure 1. If, on the other hand, the index of refraction is greater in the incident medium than in the refracted medium, then the light will bend away ...
femtosecond laser ablation of dielectrics
... Al2O3) are excited by a pair of laser pulses. The first pulse, with fixed duration of 50 fs, is the second harmonic of a Ti-Sa laser, and excites a well controlled density of carriers in the conduction band. Then we send a second pulse, at 800nm. The energy and pulse duration of this second pulse ca ...
... Al2O3) are excited by a pair of laser pulses. The first pulse, with fixed duration of 50 fs, is the second harmonic of a Ti-Sa laser, and excites a well controlled density of carriers in the conduction band. Then we send a second pulse, at 800nm. The energy and pulse duration of this second pulse ca ...
Characterisation of the Tunable Laser Source
... with wavelength on the horizontal axis and power on the vertical axis. In this way, the many signals combined on a single fibre in a dense wavelength division multiplexing (DWDM) system can be taken apart to perform per-channel analysis of the optical signal and its spectral interaction with the oth ...
... with wavelength on the horizontal axis and power on the vertical axis. In this way, the many signals combined on a single fibre in a dense wavelength division multiplexing (DWDM) system can be taken apart to perform per-channel analysis of the optical signal and its spectral interaction with the oth ...
R Technology focus: Lasers 86
... formed using a nitrogen-doped BeTe/ZnSe pseudograded superlattice. The quality of the crystal layers that were produced was evaluated using high-resolution x-ray diffraction. Rocking curve measurements showed that the cladding and optical waveguide layers deviated from the base GaAs crystal structur ...
... formed using a nitrogen-doped BeTe/ZnSe pseudograded superlattice. The quality of the crystal layers that were produced was evaluated using high-resolution x-ray diffraction. Rocking curve measurements showed that the cladding and optical waveguide layers deviated from the base GaAs crystal structur ...
INFRA-RED OPTICAL COMMUNICATION SYSTEMS*
... of the laser was the beginning of renewed interest in the use of optical frequencies for communication purposes. Here was a source which was extremely bright and which emitted light that was coherent, just as radio waves are coherent. What one could do at radio frequencies was now possible at optica ...
... of the laser was the beginning of renewed interest in the use of optical frequencies for communication purposes. Here was a source which was extremely bright and which emitted light that was coherent, just as radio waves are coherent. What one could do at radio frequencies was now possible at optica ...
Novel methods used to test large flat mirrors
... The most accurate 2m-diameter flat mirror in the world was made using new surface-measurement techniques in concert with software that simulates polishing processes. The main issue faced when manufacturing a high-accuracy large flat mirror is measurement accuracy. It is difficult to measure a large ...
... The most accurate 2m-diameter flat mirror in the world was made using new surface-measurement techniques in concert with software that simulates polishing processes. The main issue faced when manufacturing a high-accuracy large flat mirror is measurement accuracy. It is difficult to measure a large ...
AHS用スキャニングレーザレンジファインダー の試作及びそれを用いた
... is the lag on the driver’s reaction time caused by are achieved by sensors based on laser, microwaves driver distraction, fatigue or inattention. Thus, ac- ...
... is the lag on the driver’s reaction time caused by are achieved by sensors based on laser, microwaves driver distraction, fatigue or inattention. Thus, ac- ...
Confocal Fabry-Perot Cavity
... The Fabry-Perot interferometer is a very simple device that relies on the interference of multiple beams. It consists of two partially transmitting mirrors that are precisely aligned to form a reflective cavity. Incident light enters the Fabry-Perot cavity and undergoes multiple reflections between ...
... The Fabry-Perot interferometer is a very simple device that relies on the interference of multiple beams. It consists of two partially transmitting mirrors that are precisely aligned to form a reflective cavity. Incident light enters the Fabry-Perot cavity and undergoes multiple reflections between ...
Lasers and lenses - University of Toronto
... atom cloud to be trapped will be located approximately 3.75cm inside the cell. This means that the focusing lens must have a focal length of 4cm or greater. There should be space for this directly opposite the BEC imaging system. According to the rules of Gaussian optics, in order to obtain the smal ...
... atom cloud to be trapped will be located approximately 3.75cm inside the cell. This means that the focusing lens must have a focal length of 4cm or greater. There should be space for this directly opposite the BEC imaging system. According to the rules of Gaussian optics, in order to obtain the smal ...
observing sunspots using a pinhole camera
... a simple experiment in which the derived theoretical results are proved. ...
... a simple experiment in which the derived theoretical results are proved. ...
Laser Refraction and Diffraction
... bands are formed when the wave satisfies Formula 3. Wavefronts in the plane wave are parallel to each other. A ray composed of this type of wave is either highly directional or possesses a small divergence angle. a sin θ = mλ , m = intengers ...
... bands are formed when the wave satisfies Formula 3. Wavefronts in the plane wave are parallel to each other. A ray composed of this type of wave is either highly directional or possesses a small divergence angle. a sin θ = mλ , m = intengers ...
Geometrical Optics
... Aberrations are imperfections in the optical image formed by a spherical lens (or optical mirror). There are five main aberrations: 1. Chromatic aberration. The refractive index of glass varies with wavelength. This results in different focal lengths and image magnifications for different colours. ...
... Aberrations are imperfections in the optical image formed by a spherical lens (or optical mirror). There are five main aberrations: 1. Chromatic aberration. The refractive index of glass varies with wavelength. This results in different focal lengths and image magnifications for different colours. ...
3-D wave structuring and applications
... which exploits the high parallelism. At that time this was competitive with electronics but progress of the latter deprived the advantage of optics due to its limitations. •Apart from optical communication optical storage became probably the biggest hit but in this field too, optics looses ground in ...
... which exploits the high parallelism. At that time this was competitive with electronics but progress of the latter deprived the advantage of optics due to its limitations. •Apart from optical communication optical storage became probably the biggest hit but in this field too, optics looses ground in ...
Increasing the Resolution of Far
... 19th century. Electron microscopes provide a resolution ranging from tens of nanometers down to the atomic scale depending on the imaging mode, e.g. scanning or transmission, and also on the sample. For biological applications a typical resolution of 0.1 nm is obtained(8). Atomic resolution can be a ...
... 19th century. Electron microscopes provide a resolution ranging from tens of nanometers down to the atomic scale depending on the imaging mode, e.g. scanning or transmission, and also on the sample. For biological applications a typical resolution of 0.1 nm is obtained(8). Atomic resolution can be a ...
IX71/IX81 - Olympus Microscopy Resource Center
... for all applications. In addition to their high fluorescence S/N ratio, both these lenses are able to handle UV excitation light at parfocal 45mm. The UPLSAPO100XO provides a transmittance of up to 340nm. ...
... for all applications. In addition to their high fluorescence S/N ratio, both these lenses are able to handle UV excitation light at parfocal 45mm. The UPLSAPO100XO provides a transmittance of up to 340nm. ...
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.