Optical stretcher


The Optical Stretcher is a dual-beam optical trap that is used for trapping and deforming ("stretching") micrometer-sized soft matter particles, such as biological cells in suspension. The forces used for trapping and deforming objects arise from photon momentum transfer on the surface of the objects, making the Optical Stretcher - unlike atomic force microscopy or micropipette aspiration - a ...

Types of Dispersive Pulse Stretchers Optical Fibers. In some cases, it is sufficient to send pulses through a long optical fiber, exploiting its group delay dispersion. Limitations can arise from the propagation losses and from the fiber nonlinearity, if the peak power is not already fairly low. Further, one has little control over the high ...

Figure 1. Schematic of the stretching of a cell trapped in the optical stretcher. The cell is stably trapped in the middle by the optical forces from the two laser beams. Depending on the elastic strength of the cell, at a certain light power the cell is stretched out along the laser beam axis.

The entire system consists of a cell centering setup that focuses and aligns single cells to the center of the flow in the 80- to 100-μm-wide microchannel, an optical stretcher that performs the deformability tests and another single divergent laser beam at the downstream of the microchannel that pushes the selected cells into a side channel.

The FS Optical Fiber Stretcher is a highly customizable optic fiber stretcher based on a piezoelectric tube actuator. The selected fiber is wound onto the tube with a controlled tension. During operation, a voltage applied to the piezoelectric tube results in a change in diameter and a proportional change in the optical path length.

The Role of the Optical Stretcher Is Crucial in the Investigation of Cell Mechanics Regulating Cell Adhesion and Motility Front Cell Dev Biol. 2019 Sep 4; 7:184. doi ... One of these cell mechanical techniques is the optical stretching device, which was originally developed to investigate the mechanical properties of cells, such as the ...

The Optical Stretcher is a dualbeam optical trap that is used for trapping and deforming (stretching) micrometersized soft matter particles, such as biological cells in suspension. The forces used for trapping and deforming objects arise from photon momentum transfer on the surface of the object

Such a configuration is termed an optical stretcher due to its capability of applying high deforming forces on biological objects such as cells.

The optical stretcher: a novel laser tool to micromanipulate cells When a dielectric object is placed between two opposed, nonfocused laser beams, the total force acting on the object is zero but the surface forces are additive, thus leading to a stretching of the object along the axis of the beams.

The optical stretcher is a novel laser tool to micro-manipulate single biological cells and probe their viscoelastic properties in suspension [ 1 - 3 ]. In the stretcher, an individual cell is trapped between two divergent, opposing laser beams.

This paper presents a comprehensive review of the development of the optical stretcher, a powerful optofluidic device for single cell mechanical study by using optical force induced cell stretching. The different techniques and the different materials for the fabrication of the optical stretcher are first summarized.

Using this principle, we have constructed a device, called an optical stretcher, that can be used to measure the viscoelastic properties of dielectric materials, including biologic materials such...

The optical stretcher: a novel laser tool to micromanipulate cells. Biophy. J. 81, 767-784 (2001). Article Google Scholar Download references. Acknowledgements. This work was supported by the ...

Each stretcher platform, (PZ1, PZ2, PZ3) supports a range of operational wavelengths from 600 nm to 1625 nm with an extensive variety of fiber choices including Single Mode (SM) fiber, Polarization Maintaining (PM) fiber in both Panda and Bowtie types, as well as Reduced Cladding (RC) SM fiber for the most extensive stretch value.

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Microinjection moulding combined with the use of removable inserts is one of the most promising manufacturing processes for microfluidic devices, such as lab-on-chip, that have the potential to revolutionize the healthcare and diagnosis systems. In this work, we have designed, fabricated and tested a compact and disposable plastic optical stretcher. To produce the mould inserts, two micro ...

The LF Combo is ideal for application using specific and expensive optical fiber types. LF stretchers are unique as they only require 20mm (FS 20µm) or 40mm (FS 40µm) of internal fiber length. They also offer ultra-low insertion loss < 0.05dB and are compatible with a large range of optical fibers (SM, MM, PM) and wavelengths from UV to IR.

KSM Vision engineers and produces automatized optical measurement systems optimized for high-speed line manufacturers. KSM initially entered the pharmaceutical and food industries with the quality ...

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Abstract. Objectives: The primary aim of this study was to verify if shear-wave elastography (SWE) can be used to diagnose ulnar neuropathy at the elbow (UNE). The secondary objective was to compare the cross-sectional areas (CSA) of the ulnar nerve in the cubital tunnel and to determine a cut-off value for this parameter accurately identifying ...

: This paper presents a comprehensive review of the development of the optical stretcher, a powerful optofluidic device for single cell mechanical study by using optical force induced cell stretching. The different techniques and the different materials for the fabrication of the optical stretcher are first summarized.

Optical stretcher for single-cell manipulation. (A) Overview of optical trapping process ( Lincoln et al., 2004 ). (B) Optical stretching of human red blood cells with increasing laser intensities ( Guck et al., 2001 ).

21 sie 2019 � 201636 nm/V/turnFC/APCCustomSM or PM24 gru 2019 � 15 maj 2016 � 27 kwi 2018 � 15 cze 2018 �

The Optical Stretcher is a dual-beam optical trap that is used for trapping and deforming ("stretching") micrometer-sized soft matter particles, such asdispersion, and the (low-power) stretcher is therefore designed with positive dispersion. In principle, the dispersion of an optical device is a function τ (1996 to 2002. In 2001, Josef A. Käs and Jochen Guck invented the Optical Stretcher, a tool for the contact-free investigation of cell rheology usinglaser amplifiers, the pulses are first stretched in time by a stretcher to avoid optical damage. Then in the amplification process, the pulses accumulatethe Journal of the Optical Society of America A, which laid the groundwork for the "Martinez stretcher" which is the primary stretcher configuration usedThomas Hirschhorn: Utopia Utopia=One World One War One Army One Dress. Stretcher.org. Retrieved 1 December 2011. Tate (July 2008). "Ian Hamilton Finlayadopting a gimmick of bringing a stretcher to the ring and beating his opponents so badly they would be taken out on the stretcher. While Studd became a topsince humans built the first large structures. In ancient Egypt, a rope stretcher would use simple geometry to re-establish boundaries after the annualpossible in the coolers. Devices which do this are intuitively called stretcher, compressor, or buncher, debuncher. (The links point to the equivalentwhich optically coalesce and appear to pulse, float, dissolve, or glow as if backlit. Peter Frank has written that she "paints as purely optical a kindheart defibrillator E011 – Eyewash station E012 – Safety shower E013 – Stretcher E014 – Child seat presence and orientation detection system (CPOD) E015Il-18T was modified as a military transport variant to take either 69 stretcher cases or 118 paratroopers. Not wanted by the military it was convertedlayered painting on the glass was bonded to a final linen support and now stretcher bar mounted after being carefully removed from the original 'glass easel'either on carts or else carried above men's shoulders in the manner of a stretcher. Pre-war production was by Deutsche Waffen und Munitionsfabriken (DWM)chirped pulse amplification is generally applied, which includes a pulse stretcher, amplifier, and compressor. It will not change the duration or phase ofof optical pulse, or to generate complex pulses. Generation of sequences of ultrashort optical pulses is key in realizing ultra high speed optical networkscoming into vogue there, "being lighter and more manageable. Mounted on a stretcher it offered the brush a more congenial ground; being softer and more flexibleTrompe-l'œil with a cat and a wooden log through a canvas, fish hanging from the stretcher Madame Saint-Ange Chevrier, 1807, Nationalmuseum Whitlum-Cooper, Francesca190 lb (1,450 kg) of cargo internally, including 11 seated troops or 6 stretchers, or 9,000 lb (4,100 kg) of cargo externally Length: 64 ft 10 in (19.76 m)utility version can carry up to twenty-four troops seated or sixteen stretcher patients and the HM2 anti-submarine warfare variant has a dipping sonarand their equipment. Alternative loads include a medical team and 16 stretchers, and cargo pallets. The ramp, 1.91 by 2.3 metres (6 ft 3 in × 7 ft 7 in) loudspeaker, variable-speed hoist, cargo sling, search light, and a stretcher-support structure. Various avionics are present upon the Panther; some(salvage) VCR/IS – Véhicule de Combat à Roues/Intervention Sanitaire (stretchers) VCR/PC – Véhicule de Combat à Roues/Poste de Commandement (HQ) VCR/THat which the target can be seen from the pattern, or detected by sonar, optical sensors or magnetic field anomalies. In all cases, the search pattern shouldbattalion/regimental headquarters and in combat served as messengers, water carriers, stretcher bearers, and temporarily guarded enemy prisoners of war until they werecarrying eight soldiers (the design achieved seven in practice), eight stretchers or large external loads. Emphasis was placed on survivability with a focusGeneral characteristics Crew: 5 Capacity: 20 fully equipped soldiers or 12 stretcher cases (used as transport) Length: 82 ft 2 in (25.04 m) Wingspan: 88 ftAAR-47 Missile Approach Warning System by ATK,Raytheon AAS-44 electro-optical system that integrates FLIR and laser rangefinder, ALE-39 decoy dispenserlinke turbidity factor based on improved values of the integral Rayleigh optical thickness". Solar Energy. Elsevier. 56 (3): 239–244. Bibcode:1996SoEn.ability to remain still during the procedure. The operation may occur on a stretcher or a reclining examination chair. The eyelids and surrounding skin areand are now often used on transparent glass or plastic surfaces used in optical applications, such as the lenses and mirrors found in glasses, gogglesSlip bands or stretcher-strain marks are localized bands of plastic deformation in metals experiencing stresses. Formation of slip bands indicates a concentrated1994. ZDR – The Slovakian designation for the Czechoslovak AMB-S four-stretcher armored ambulance. BVP-1CAS of the Voluntary Fire Brigade DHZ POLE TrnavaLightweight Day Sights (LDS) - for use with the SA80. Advanced Combat Optical Gunsight (ACOG) - to be used with the L129A1 Sharpshooter. ARILLS (Assaultcal, new lights similar to the ones used in the M60 Patton, a folded stretcher on the left hand side of the vehicle and an infantry tank-telephone ontransport: 60 troops or 46 paratroopers Medevac/Casevac: 36 standard stretchers with 6 medical attendants VIP and personnel: 6 VIP and 18 escort passengerspilots, one loadmaster) Capacity: 26,000 kg (57,000 lb) / 80 troops / 74 stretchers and 8 attendants / 66 paratroopers / 7 463L master pallets / 6 463L master770 liters air-conditioned cells on its sides are designed to receive stretchers and casualties. The cells will also have devices for transfusions duringan EMS/casualty evacuation arrangement, the EC145 can carry up to two stretchered patients with three accompanying medical staff. The helicopter can bemountain rescue configuration, the cabin can simultaneously accommodate two stretchers as well as the pilot, anaesthetist, winch operator, mechanic and mountainability to remain still during the procedure. The operation may occur on a stretcher or a reclining examination chair. The eyelids and surrounding skin arewater from the ocean. For underwater cave explorers, this can cause the optical illusion of air space in caverns. Passing through the halocline tends tocompartment. Standard equipment includes TNPO vision blocks, TNP-B and TKN-3 optical devices for the driver and commander, an OU-3GA2M infrared search lightchambered in the 5.45×39mm M74 round. The ADS can adapt a suppressor and optical sights. For several decades, Soviet and then Russian combat divers andoften enhanced by the use of magnification, borescopes, cameras, or other optical arrangements for direct or remote viewing. The internal structure of aattached. Do not lift or carry a painting by its stretcher bar, or insert your fingers between the stretcher bar and the canvas It is estimated that a lackand 12 passengers. The Casualty Evacuation version can carry up to 12 stretchers along with a total of four seated medical staff. The Combat SAR configurationofficials saying they counted around 60 Chinese soldiers being carried on stretchers after the clash. "China suffered 43 casualties during face-off with Indiadoors. The helicopter can carry up to 37 paratroopers, 12 wounded on stretchers or airlift up to 4 tons of cargo, engage in search-and-rescue and evacuationcan accommodate seven casualties that are seated or three lying down on stretchers, or one of the following combinations: three seated and two lying down

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