Articles tagged with Optical Trapping
Scientists at The University of Osaka have successfully fabricated protein networks in living cells using a focused laser beam. The approach allows for non-invasive control over network formation and exhibits dynamic motions similar to those observed in living cells.
Researchers develop gradient-thickness-protected microbottle resonator for large-scale optical trapping via whispering-gallery modes, enabling stable trapping over nearly 200 micrometers with ultralow optical power. The design supports high-order axial modes, generating multiple optical trapping sites along its length.
The Harvard team developed a new microfabrication method to produce high-performance, curved optical mirrors with extremely smooth surfaces. The mirrors can control light at near-infrared wavelengths, enabling fast and efficient quantum networking.
Columbia physicists develop new method to scale neutral-atom arrays using metasurfaces, enabling creation of 2D arrays with thousands of trapped atoms. The technology has the potential to benefit quantum computing and other neutral-atom quantum technologies.
Researchers at Harvard Medical School have uncovered crucial insights into how a new class of antiviral drugs works, shedding light on an important tool for fighting drug-resistant strains of herpes simplex virus. The discovery may lead to new pathways for treating herpesviruses and other kinds of DNA viruses.
Researchers use model calculations to optimize work extraction from fluctuating environments, enabling the development of nanomachines that can efficiently transport nutrients and other molecules within cells. The study's findings have significant implications for understanding thermodynamics in the microscopic world.
Researchers at ISTA use laser tweezers to capture and charge micron-sized particles, allowing them to observe charging and discharging dynamics over time. This method may provide key insights into what sparks lightning.
Kono recognized for his contributions to optical physics, light-condensed matter interactions and photonic applications of nanosystems. His research explores how light interacts with materials at the nanoscale, potentially leading to new technologies in electronics and quantum communication.
A new platform allows researchers to study the forces that bind tiny objects together, revealing insights into self-assembly processes and fundamental forces in nature. The platform uses gold flakes in a salt solution, with light bouncing back and forth through nanometre-sized cavities to display colors.
Scientists at the University of Gothenburg have developed the smallest on-chip motor in history, capable of fitting inside a human hair. The new motor uses laser light to set gears in motion, enabling microscopic machines that can control light and manipulate small particles.
Researchers create 3D photonic-crystal cavity to study ultrastrong coupling between light and matter, enabling faster and more energy-efficient quantum computing and communication technologies. The study paves the way for hyperefficient quantum processors, high-speed data transmission and next-generation sensors.
Researchers measured high-precision transition frequencies and isotope mass ratios in ytterbium isotopes to confirm a nonlinearity anomaly. The team established a new limit for the existence of dark forces and gained insights into atomic nucleus deformation, opening doors for collaboration in physics research.
Researchers developed a surface-enhanced Raman scattering optofluidic molecular fingerprint spectroscopy detection system based on a single-beam optical trap. The system aggregates metal nanoparticles to enhance Raman signals, achieving controllable amplification of molecular fingerprints for highly sensitive detection.
Researchers create a miniature, chip-based 'tractor beam' that can capture and manipulate cells at distances of over a hundred times further away from the chip surface. This technology has the potential to revolutionize biologists and clinicians' ability to study DNA, classify cells, and investigate disease mechanisms.
The researchers have successfully demonstrated quantum entanglement between electronic and motional states in their ultrafast quantum simulator, generating a new quantum simulation method including repulsive force between particles. This achievement is expected to improve the fidelity of two-qubit gate operations and realize socially u...
Researchers at Osaka Metropolitan University have developed a novel technique to control Förster resonance energy transfer using optical tweezers. The method, which accelerates energy transfer by increasing laser intensity, offers a non-contact approach for microchemistry and quantum dot applications.
Researchers created a topological quantum simulator device that operates at room temperature, allowing for the study of fundamental nature of matter and light. The device has the potential to support the development of more efficient lasers.
Researchers have developed new optical tweezers that can stably trap large and irregularly shaped particles using contour-tracking technology. This advancement could expand light-based trapping to a wider range of objects, including groups of cells, bacteria, and microplastics.
The novel UV broadband spectrometer enables real-time analysis of air pollutants and their interaction with other gases and sunlight. It combines high spectral resolution, short measurement times, and large bandwidth, making it suitable for sensitive measurements and monitoring of gas concentrations.
Scientists have created a way to correct distorted light patterns in real time without needing to reapply the same distortion. This method uses nonlinear optics and exploits difference frequency generation to produce an aberration-free output beam.
Using optical traps, researchers controlled bacterial aggregation and biofilm development, finding different types of lasers can stimulate or suppress growth. The study opens up possibilities for creating microscopic building materials from bacteria.
Researchers at Rice University have developed a new experimental technique that preserves quantum coherence in ultracold molecules for a significantly longer time. By using a specific wavelength of light, the 'magic trap' delays the onset of decoherence, allowing scientists to study fundamental questions about interacting quantum matter.
A new technique using optical orbital angular momentum lattice (OAML) multiplexed holography boosts information storage capacity and offers novel approaches for implementing high-capacity holographic systems. The research unlocks supplementary encrypted dimensions, enhancing storage capacity and overcoming limitations of traditional me...
Researchers developed CRISPR-powered optothermal nanotweezers (CRONT) that can trap and enrich bio-nanoparticles, including gold nanoparticles and DNA molecules. The technique achieves single molecule level SNP detection with ultra-low detection volume, making it suitable for point-of-care diagnosis and biophotonics.
Scientists superposed two light beams twisted in the clockwise direction to create anti-clockwise twists in the dark regions of the resultant superposition. This discovery represents a step towards observing a peculiar phenomenon known as quantum backflow.
Scientists have created a method to keep targeted particles cool, allowing safe trapping of living cells in their native fluids. This advancement could help overcome problems with current laser light tweezers and enable targeted drug delivery applications.
Researchers create an ultrafast quantum simulator that can simulate large-scale quantum entanglement on a timescale of several hundred picoseconds. By applying their novel ultrafast quantum computer scheme, they overcome the issue of external noise and achieve high speed and accurate controls.
Researchers at the University of Washington have developed a multifunctional interface between photonic integrated circuits and free space, allowing for simultaneous manipulation of multiple light beams. The device operates with high accuracy and reliability, enabling applications in quantum computing, sensing, imaging, energy, and more.
A research team at Göttingen University has discovered that mobile and stationary cells have different mechanical properties due to their cytoskeleton. The study found that intermediate filaments, which are crucial for cell stability, exhibit metal-like plasticity when stretched, similar to non-biological materials.
Researchers from HKUST and CityU developed a metasurface to generate time-varying OAM beams with a time-dependent phase profile. This allows for a higher-order twist in the envelope wavefront structure, increasing capacity for applications such as dynamic particle trapping and information encryption.
Researchers developed a way to study living cell dynamics using optically trapped nanodiamond particles as intracellular sensors. They demonstrated the ability to measure magnetic noise within single leukemia cells.
Researchers at Korea Advanced Institute of Science and Technology used optical traps to throw chilled rubidium atoms over a distance of 4.2 micrometers, achieving 94% success rate. The technology could enable dynamic quantum computing and study single-atom collisions.
Researchers used C-trap technology to investigate how different DNA repair proteins identify and bind to their respective forms of damage. They found that some proteins arrived at the damage site together and departed together, while others showed surprising variability in their association and dissociation patterns. The study provides...
Princeton researchers have achieved a major breakthrough by microscopically studying molecular gases at a level never before achieved. The team cooled molecules to ultracold temperatures, observed individual molecules with high spatial resolution, and detected subtle quantum correlations, opening up new avenues for many-body physics re...
A team at KAUST has created an ultrathin dielectric metalens that improves focusing capabilities and can be scaled down for integration with photonics equipment. The metalens, designed from a custom array of TiO2 nanopillars atop a DBR, offers negligible intrinsic loss and easy fabrication.
Optical tweezers have evolved to trap, sort, transport, and enrich various biological particles with finer force strength and non-invasive nature. This enables applications in biology, pharmacology, and clinical research fields, offering a promising tool for understanding human life at the single-cell level.
Scientists have successfully implemented the world's fastest two-qubit gate in a quantum computer, achieving an impressive speed of 6.5 nanoseconds using cold atoms cooled to near absolute zero and optical tweezers. This breakthrough has significant implications for the development of ultrafast quantum computing hardware.
Researchers used optical tweezers to study protein folding, revealing entropy and enthalpy levels for the first time. The team discovered that during transition states, the protein skeletal structure is built, but most van der Waals interactions remain unstable.
Researchers have developed a direct method for generating complex structured light through intracavity nonlinear frequency conversion. This technique uses transverse mode locking to produce vortex beams, which are then converted into second-harmonic generation beams with distinct structural characteristics. The study demonstrates the p...
H. pylori navigate stomach niches with aid of flagella, but researchers lack understanding of their navigational strategies. Texas A&M University's Dr. Pushkar Lele is working on this gap using optical trapping and Förster resonance energy transfer (FRET) to visualize signaling interactions.
Researchers at Osaka City University have developed a new technique for controlling the luminescence color of materials using optical tweezers and nanotextured black silicon. The system can change the color of a material in response to changes in light pressure, allowing for fully reversible remote control.
Scientists at Huazhong University of Science and Technology have created a new type of fiber optical tweezers that can trap particles using transverse electromagnetic modes. This breakthrough enables the manipulation of single biomolecules like DNA and proteins, opening up new possibilities for bioparticle research.
Researchers at UMass Amherst developed a gear-shaped photonic crystal microring that increases light-matter interactions without sacrificing optical quality. The device boasts an optical quality factor 50 times better than previous records.
Scientists develop novel trapping method to measure extremely small forces using a hairdryer-balloon setup, detecting femtoNewton-range forces without laser-particle contact. This approach has significant implications for the life sciences and beyond.
Research reveals that cancer cells have softer membranes than normal cells, but stiffening them can prevent abnormal changes in structure and motility. Stiffened breast cancer cells lost the ability to spread to the lungs in mouse experiments, suggesting a potential strategy for cancer treatments.
Researchers discovered that living cell interiors become softer and more fluid during mitosis, a process crucial for life. The findings could help ensure precise separation of cellular structures into daughter cells.
The university will acquire an optical tweezer to study colloidal copolymer chains, protein binding strength and other phenomena. The instrument will be made available to Rice researchers and collaborators.
Researchers developed a simplified method to calibrate optical tweezers for measuring viscoelasticity in living cells. The new method reduces measurement time to just a few seconds, allowing for the study of dynamic processes that can't be captured with longer measurements.
Researchers have developed a programmable quantum simulator capable of operating with 256 qubits, a significant advancement in the field of quantum computing. The system enables the study of complex quantum processes and has already allowed for the observation of exotic quantum states of matter.
Researchers at the University of Texas at Austin have developed a new version of optical tweezer technology that fixes the problem of overheating, making it easier to study biomolecules and diseases. The breakthrough uses cooled materials and thermophoresis to attract particles, protecting them from damage.
Researchers at HKUST create a novel optical tweezers-coupled Raman spectroscopy platform to analyze proteins in low concentrations, particularly IDPs. The study successfully characterizes the structural features of alpha-synuclein, an IDP linked to Parkinson's disease, at physiological concentration.
Scientists have developed a new technique to manipulate nanoparticles with the same refractive properties as their background environment, overcoming a fundamental technical challenge. This breakthrough has huge potential in fields like medicine, enabling precise manipulation and measurement of microscopic objects inside cells.
Optical tweezers have been extended to trap nanoscale particles by exploiting a particular property of light diffraction at the interface between a glass and a liquid. The device uses 'Arago spots' and 'total internal reflection' to confine particles in a donut-shaped wave, enabling precise manipulation without physical contact.
Scientists have created a technique for precise nanoparticle trapping using metamaterials, overcoming size restrictions and enabling long-term stability. This breakthrough has far-reaching potential for biomedical science applications, including cancer research and imaging.
Researchers at Tomsk Polytechnic University have developed a new method to significantly increase the operation range and stability of optical tweezers. This technology uses dielectric particles to form a photonic jet, which acts as a trap or tweezers, allowing for more precise control over micron-sized objects.
Researchers from The University of Texas at Austin and Tsinghua University develop a new technology called opto-thermoelectric pulling (OTEP) to achieve the optical pulling of light-absorbing particles. This technique uses directional optical heating to create an asymmetric thermoelectric field, allowing for the trapping of particles a...
A team of researchers at Michigan State University has developed a new method using optical tweezers to observe telomerase activity in unprecedented precision. This breakthrough aims to help find more effective and safe cancer treatments by targeting the telomerase enzyme.
Researchers at TU Wien have created a calculation method to determine the perfect wave form for manipulating small particles in complex environments. This allows for precise control over particles without direct physical contact, opening up new possibilities for biological research and applications.
Scientists at the University of Washington create a method to assemble nanoscale semiconductor materials into larger structures using optical tweezers. The technique allows for precise control over material size and shape, with potential applications in quantum computing.
Researchers at the University of Gothenburg have discovered a new type of force that minimizes light usage in optical tweezers, reducing photo damage to cells. This breakthrough enables more realistic experiments with longer cell lifespans.