相关实验视频

Updated: Jul 12, 2026

Optical Trap Loading of Dielectric Microparticles In Air
08:57

Optical Trap Loading of Dielectric Microparticles In Air

Published on: February 5, 2017

在一个保罗陷中的两个粒子的频率锁定轨道上

J Hoffnagle, R G Brewer

    Science (New York, N.Y.)
    |July 8, 1994
    PubMed
    概括

    频率锁定是两离子保罗陷动态中的一个关键行为,具有线性缓冲. 稳定,周期性轨道,数量无限,从这个现象中出现,经实验数据验证.

    更多相关视频

    Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps11:45

    Experimental Methods for Trapping Ions Using Microfabricated Surface Ion Traps

    Published on: August 17, 2017

    Optical Trapping of Nanoparticles13:39

    Optical Trapping of Nanoparticles

    Published on: January 15, 2013

    相关概念视频

    The Pauli Exclusion Principle03:06

    The Pauli Exclusion Principle

    The arrangement of electrons in the orbitals of an atom is called its electron configuration. We describe an electron configuration with a symbol that contains three pieces of information:
    Mass Analyzers: Common Types01:19

    Mass Analyzers: Common Types

    The quadrupole mass analyzer consists of four cylindrical metal rods arranged in a diamond carrying a DC voltage and a radio-frequency AC voltage. The motion of ions through the quadrupole depends on the field strength, causing only ions of a certain m/z to resonate successfully and strike the detector at a given field strength. Though the transmission rate for these analyzers is high, the exact elemental composition of the sample is not determined because of low resolution; however, they are...
    Molecular Orbital Theory I02:35

    Molecular Orbital Theory I

    Overview of Molecular Orbital Theory
    Atomic Nuclei: Larmor Precession Frequency01:11

    Atomic Nuclei: Larmor Precession Frequency

    The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession, and the angular frequency...
    Atomic Nuclei: Nuclear Relaxation Processes01:23

    Atomic Nuclei: Nuclear Relaxation Processes

    In the absence of an external magnetic field, nuclear spin states are degenerate and randomly oriented. When a magnetic field is applied, the spins begin to precess and orient themselves along (lower energy) or against (higher energy) the direction of the field. At equilibrium, a slight excess population of spins exists in the lower energy state. Because the direction of the magnetic field is fixed as the z-axis,  the precessing magnetic moments are randomly oriented around the z-axis. This...
    Equilibrium Conditions for a Particle01:23

    Equilibrium Conditions for a Particle

    When an object is in equilibrium, it is either at rest or moving with a constant velocity. There are two types of equilibrium: static and dynamic. Static equilibrium occurs when an object is at rest, while dynamic equilibrium occurs when an object is moving with a constant velocity. In both cases, there must be a balance of forces acting on the object.
    To understand the concept of equilibrium, let us first consider the forces acting on an object. When different forces act on an object, they can...