Advanced optical traps can probe single molecules with Ångstrom-scale precision, but drift limits the utility of these instruments. To achieve Å-scale stability, a differential measurement scheme between a pair of laser foci was introduced that substantially exceeds the inherent mechanical stability of various types of microscopes at room temperature. By using lock-in detection to measure both lasers with a single quadrant photodiode, we enhanced the differential stability of this optical reference frame and thereby stabilized an optical-trapping microscope to 0.2 Å laterally over 100 s based on the Allan deviation. In three dimensions, we achieved stabilities of 1 Å over 1,000 s and 1 nm over 15 h. This stability was complemented by high measurement bandwidth (100 kHz). Overall, our compact back-scattered detection enables an ultrastable measurement platform compatible with optical traps, atomic force microscopy, and optical microscopy, including super-resolution techniques.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1364/OE.23.016554 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A fixed support method for cryogenic silicon cavities of ultra-stable lasers for space applications.
Sci Rep
January 2025
School of Physics and Optoelectronic Engineering, Key Laboratory of Gravitational Wave Precision Measurement of Zhejiang Province, Taiji Laboratory for Gravitational Wave Universe, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China.
In this paper, a fixed support method for a cryogenic monocrystalline silicon Fabry-Pérot cavity of an ultra-stable laser for space applications is proposed. Through finite element analysis, the vibration sensitivity at the center of the cavity is below 10E-12/g; the fundamental frequency is 381 Hz; the thermal deformation is compensated by applying a preload force of about 3 N*m for a variation of 300 K to 124 K. Based on these analyses, an equal-mass cavity simulator was machined and mounted.
View Article and Find Full Text PDFElectrolyte Decoupling Strategy for Metal Oxide-Based Zinc-Ion Batteries Free of Crosstalk Effect.
Angew Chem Int Ed Engl
January 2025
Tsinghua Shenzhen International Graduate School, Tsinghua University, 518055, Shenzhen.
The crosstalk of transition metal ions between the metal oxide cathode and Zn anode restricts the practical applications of aqueous zinc-ion batteries (ZIBs). Herein, we propose a decoupled electrolyte (DCE) consisting of a nonaqueous-phase (N-phase) anolyte and an aqueous-phase (A-phase) catholyte to prevent the crosstalk of Mn, thus extending the lifespan of MnO-based ZIBs. Experimental measurements and theoretical modelling verify that trimethyl phosphate (TMP) not only synergistically works with NHCl in the N-phase anolyte to enable fast Zn conduction while blocking Mn diffusion toward anode, but also modifies the Zn solvation structure to suppress the dendrite formation and corrosion on Zn anode.
View Article and Find Full Text PDFTask-Specific Design of a Porous Aromatic Framework as an Ultrastable Platform for Enantioselective Organocatalysis.
Chemistry
December 2024
Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
A hydroxyl-tagged porous aromatic framework PAF-NBU2-OH was task-specifically designed and successfully synthesized targeted toward immobilizing chiral catalysts. Using proline-type compound as model chiral organocatalyst, PAF-NBU2-OH was used as a platform to covalently link proline-type group. The obtained PAF-immobilized organocatalyst PAF-NBU2-OPro featured high chemical stability in different solvents even under very harsh conditions.
View Article and Find Full Text PDFRecyclable Robust Plastic Scintillation Resin Achieving the Exceptional Separation and Detection of Technetium-99.
Adv Sci (Weinh)
January 2025
Frontier Science Center for Rare Isotopes, School of Nuclear Science and Technology, Lanzhou University, Lanzhou, 730000, China.
Rapid detection and absorption of TcO contamination in the environment are critical due to its high radioactivity, long half-life, and significant environmental mobility. Resins have been demonstrated effective bifunctional properties for both the detection and separation of TcO . However, the poor stability of these compounds limits their practical application.
View Article and Find Full Text PDFInherent Water Competition Effect-Enabled Colloidal Electrode for Ultra-stable Aqueous Zn-I Batteries.
J Am Chem Soc
October 2024
School of Energy Sciences and Engineering, Nanjing Tech University, Nanjing, Jiangsu Province 211816, China.
Electrode material stability is crucial for the development of next-generation ultralong-lifetime batteries. However, current solid- and liquid-state electrode materials face challenges such as rigid atomic structure collapse and uncontrolled species migration, respectively, which contradict the theoretical requirements for ultralong operation lifetimes. Herein, we present a design concept for a soft colloid polyvinylpyrrolidone iodine (PVP-I) electrode, leveraging the inherent water molecule competition effect between (SO) from the electrolyte and PVP-I from the cathode in an aqueous Zn||PVP-I battery.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!