Results 121 to 130 of about 2,534,041 (331)

Experimental investigation on optical vortex tweezers for microbubble trapping

Open Physics, 2018
In this paper, we investigated the microbubble trapping using optical vortex tweezers. It is shown that the microbubble can be trapped by the vortex optical tweezers, in which the trapping light beam is of vortex beam.
Zhou Xiaoming, Chen Ziyang, Liu Zetian, Pu Jixiong   +3 more
doaj   +1 more source

Hyperphosphorescent OLEDs: Harnessing the Power of MR‐TADF Terminal Emitters

Advanced Optical Materials, EarlyView.
Hyperphosphorescent organic light‐emitting diodes (HP‐OLEDs) use phosphorescent sensitizers with multiresonant thermally activated delayed fluorescence terminal emitters. HP‐OLEDs show efficient, narrowband electroluminescence and moderate efficiency roll‐off.
Emma V. Puttock, Janine Haug, Eli Zysman‐Colman, Stefan Bräse   +3 more
wiley   +1 more source

Manipulating rod-shaped bacteria with optical tweezers

Scientific Reports, 2019
Optical tweezers have great potential in microbiology for holding and manipulating single cells under a microscope. However, the methodology to use optical tweezers for live cell studies is still at its infancy.
Zheng Zhang, T. E. P. Kimkes, Matthias Heinemann   +2 more
semanticscholar   +1 more source

Excitation‐Wavelength‐Tunable Lasing in Individual Quantum Dot Superparticles

Advanced Optical Materials, EarlyView.
Mesoscale superparticles assembled from CdSe quantum dots are shown to behave as microlasers with emission properties that can be tuned by changing the excitation wavelength. Abstract Microcavities enable precise control over light‐matter interactions, supporting a wide range of applications in photonics and optoelectronics.
Marco Reale, Pietro Castronovo, Marco Cannas, Emanuele Marino, Alice Sciortino, Fabrizio Messina   +5 more
wiley   +1 more source

Directed Movement of Chromosome Arms and Fragments in Mitotic Newt Lung Cells Using Optical Scissors and Optical Tweezers [PDF]

, 1994
Liang Hong, W. H. Wright, Conly L. Rieder, Edward D. Salmon, Glen Profeta, Jeffrey J. Andrews, Yagang Liu, Gregory J. Sonek, Michael W. Berns   +8 more
openalex   +1 more source

Chiral optical tweezers for optically active particles in the T-matrix formalism

Scientific Reports, 2019
Modeling optical tweezers in the T-matrix formalism has been of key importance for accurate and efficient calculations of optical forces and their comparison with experiments.
F. Patti, R. Saija, P. Denti, G. Pellegrini, P. Biagioni, M. Iatì, O. Maragò   +6 more
semanticscholar   +1 more source

Size Effect on Photothermal Heating Ability of Gold Bipyramids

Advanced Optical Materials, EarlyView.
Gold bipyramids with identical spectral characteristics exhibits opposite volume‐dependent photo‐thermal heating at single‐particle versus collective scales. The thermal energy can be used to generate mechanical work by powering Stirling engine. Abstract Gold nanoparticles (AuNPs) exhibit photothermal properties that are fundamental to biomedical and ...
Aadesh Mohan Naik, Ana Sánchez‐Iglesias, José Luis Montaño‐Priede, Nirmala Maria D'souza, Jordi Sancho‐Parramon, Stefano A. Mezzasalma, Anish Rao, Marek Grzelczak   +7 more
wiley   +1 more source

Bandgap Tuning of β‐(AlxGa1‐x)2O3 Nanosheets via Liquid Metal Interface Engineering

Advanced Optical Materials, EarlyView.
Ultrathin β‐(AlxGa1‐x)2O3 nanosheets with controlled composition are synthesized via low‐temperature squeeze‐printing of Al─Ga liquid alloys. Aluminium preferentially migrates to the surface of the liquid alloy, forming Al‐rich oxide layers with tunable bandgaps up to 6.4 eV. This compositionally precise approach enables the fabrication of 2D ultrawide‐
Somayeh Rafiezadeh, Ali Zavabeti, Jianbo Tang, Andrew J. Christofferson, Nastaran Meftahi, Matthew R. Phillips, Kourosh Kalantar‐Zadeh, Mohammad B. Ghasemian, Cuong Ton‐That   +8 more
wiley   +1 more source

Nanoimprinting of Mesoporous Titania: Direct Patterning and Refractive Index Control in the Visible

Advanced Optical Materials, EarlyView.
Nanoimprinted mesoporous TiO₂ (pTiO₂) films are demonstrated as high‐resolution optical materials with tunable porosity, refractive index, and mechanical response. Sub‐micron patterning of planar optics is shown alongside a refractive index contrast Δn ≈0.7.
Matthew Panipinto, Andrea Martinez Gomez‐Aldaravi, David Ortiz de Zárate, Jaime García‐Rupérez, Judson D. Ryckman   +4 more
wiley   +1 more source

Non‐Reciprocal Terahertz Topological Sensor on a Silicon Chip

Advanced Optical Materials, EarlyView.
A non‐reciprocal terahertz topological sensor (NTTS) is experimentally demonstrated on a silicon valley photonic crystal chip by detecting the thickness and position changes of a polyimide membrane. The sensor exploits detuning between clockwise and counterclockwise topological cavity modes, induced by integrated magneto‐optical InSb, to achieve non ...
Ridong Jia, Ranjan Singh
wiley   +1 more source