Construction Of Multiple-beam Optical Traps
... that optical tweezers acts like a Hookeian spring, characterized by a fixed stiffness. In most of our experiments, we are interested mainly in the lateral stiffness, i.e., stiffness in the plane of the specimen. The stiffness depends on the wavelength and power of the laser used, as well as the size ...
... that optical tweezers acts like a Hookeian spring, characterized by a fixed stiffness. In most of our experiments, we are interested mainly in the lateral stiffness, i.e., stiffness in the plane of the specimen. The stiffness depends on the wavelength and power of the laser used, as well as the size ...
File
... Semiconductor (Ga-As) lasers Introduction The semiconductor laser is today one of the most important types of lasers with its very important application in fiber optic communication. These lasers use semiconductors as the lasing medium and are characterized by specific advantages such as the capabi ...
... Semiconductor (Ga-As) lasers Introduction The semiconductor laser is today one of the most important types of lasers with its very important application in fiber optic communication. These lasers use semiconductors as the lasing medium and are characterized by specific advantages such as the capabi ...
Introduction - Research
... As per the requirements above, a device was made that was easy to fabricate, transparent, and biologically inert. The natural choice was to use a polydimethylsiloxane (PDMS) device that meets all the above specifications and is very quick to make (<24 hrs design to final). The PDMS device was fabric ...
... As per the requirements above, a device was made that was easy to fabricate, transparent, and biologically inert. The natural choice was to use a polydimethylsiloxane (PDMS) device that meets all the above specifications and is very quick to make (<24 hrs design to final). The PDMS device was fabric ...
Nonlinear Optics Third Edition
... In Chapter 7 on processes resulting from the intensity-dependent refractive index, the section on self-action effects (now Section 7.1) has been significantly expanded. In addition, a description of optical switching has been included in Section 7.3, now entitled optical bistability and optical swit ...
... In Chapter 7 on processes resulting from the intensity-dependent refractive index, the section on self-action effects (now Section 7.1) has been significantly expanded. In addition, a description of optical switching has been included in Section 7.3, now entitled optical bistability and optical swit ...
Helicity-dependent three-dimensional optical trapping of chiral
... Lw ¼ 1 are trapped only for small enough sizes. In contrast, our results show that all types of chiral particles can be selectively 3D trapped using an appropriate light field whatever their sizes. Results Chiral light field. Our proposal for helicity driven selective 3D optical trapping of transpar ...
... Lw ¼ 1 are trapped only for small enough sizes. In contrast, our results show that all types of chiral particles can be selectively 3D trapped using an appropriate light field whatever their sizes. Results Chiral light field. Our proposal for helicity driven selective 3D optical trapping of transpar ...
A Study of the Phenomenon of Spontaneous Parametric Down
... do not require a previously calibrated standard in order to perform absolute optical measurements [2]. An example of a quantum phenomenon that produces entangled photons is spontaneous parametric downconversion (SPDC). SPDC was described as early as 1970 by D. C. Burnham and D.L. Weinberg [3]. Exper ...
... do not require a previously calibrated standard in order to perform absolute optical measurements [2]. An example of a quantum phenomenon that produces entangled photons is spontaneous parametric downconversion (SPDC). SPDC was described as early as 1970 by D. C. Burnham and D.L. Weinberg [3]. Exper ...
chapter 8 optical pyrometry
... In this type of calibration [3], [4] the output of a primary pyrometer(i.e., one calibrated at the NBS) is compared with that of a secondary pyrometer (i.e., one to be calibrated) when the pyrometers are sighted alternately on a tungsten strip lamp operated at different brightnesses. Such lamps are ...
... In this type of calibration [3], [4] the output of a primary pyrometer(i.e., one calibrated at the NBS) is compared with that of a secondary pyrometer (i.e., one to be calibrated) when the pyrometers are sighted alternately on a tungsten strip lamp operated at different brightnesses. Such lamps are ...
Variability in ultraviolet total optical depth during the Southern
... at Mt Wilson. These radiometers have 2 nm nominal fullwidth at half-maximum "lters whose center wavelengths are 300.4, 305.7, 312.0, 318.1, 325.9, 332.9 and 367.8 nm. Bigelow et al. (1998) have shown that integrated out-ofband light contamination is less than 0.5%. A shadowband blocks the direct sol ...
... at Mt Wilson. These radiometers have 2 nm nominal fullwidth at half-maximum "lters whose center wavelengths are 300.4, 305.7, 312.0, 318.1, 325.9, 332.9 and 367.8 nm. Bigelow et al. (1998) have shown that integrated out-ofband light contamination is less than 0.5%. A shadowband blocks the direct sol ...
Optical amplifier
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity, or one in which feedback from the cavity is suppressed. Optical amplifiers are important in optical communication and laser physics.There are several different physical mechanisms that can be used to amplify a light signal, which correspond to the major types of optical amplifiers. In doped fibre amplifiers and bulk lasers, stimulated emission in the amplifier's gain medium causes amplification of incoming light. In semiconductor optical amplifiers (SOAs), electron-hole recombination occurs. In Raman amplifiers, Raman scattering of incoming light with phonons in the lattice of the gain medium produces photons coherent with the incoming photons. Parametric amplifiers use parametric amplification.