Isotope selective optical excitation of atoms is important for experiments with neutral atoms, metrology, and work with trapped ions, including quantum information processing. Polarization-enhanced absorption spectroscopy is used to frequency stabilise a tunable external cavity laser diode system at 398.9 nm for isotope selective photoionization of neutral Yb atoms. This spectroscopy technique is used to measure isotope resolved dispersive features from transitions within a see through configuration Ytterbium hollow-cathode discharge lamp. This Doppler-free dichroic polarization spectroscopy is realised by retro-reflecting a laser beam through the discharge and analysing the polarization dependent absorption with balanced detection. The spectroscopy signal is recovered using lock-in detection of frequency modulation induced by current modulation of the external cavity laser diode. Here, we show the use of polarization-enhanced absorption spectroscopy for isotope selectively loading of $^{171}$ Yb $^+$ , $^{172}$ Yb $^+$ , or $^{174}$ Yb $^+$ ions into an RF Paul trap.Isotope selective optical excitation of atoms is important for experiments with neutral atoms, metrology, and work with trapped ions, including quantum information processing. Polarization-enhanced absorption spectroscopy is used to frequency stabilise a tunable external cavity laser diode system at 398.9 nm for isotope selective photoionization of neutral Yb atoms. This spectroscopy technique is used to measure isotope resolved dispersive features from transitions within a see through configuration Ytterbium hollow-cathode discharge lamp. This Doppler-free dichroic polarization spectroscopy is realised by retro-reflecting a laser beam through the discharge and analysing the polarization dependent absorption with balanced detection. The spectroscopy signal is recovered using lock-in detection of frequency modulation induced by current modulation of the external cavity laser diode. Here, we show the use of polarization-enhanced absorption spectroscopy for isotope selectively loading of $^{171}$Yb$^+$, $^{172}$Yb$^+$, or $^{174}$Yb$^+$ ions into an RF Paul trap.

arXiv:2006.12012Jun 22, 20200 citations

Multipolar trap geometries for particle trapping under standard reference temperature and pressure conditions

Bogdan M. Mihalcea, Ovidiu S. Stoican, Ion M. Mih

One of the most challenging quests for physicists was represented by the goal of trapping of atomic particles,in a well controlled environment. The advent of ion traps [1] in the 1950s, inﬂuenced the future of physics andtechnology in a very profound and even revolutionary mode. High-precision spectroscopy and mass spectrometrymeasurements with unprecedented accuracy, quantum physics tests, precise control of quantum states, study ofnon-neutral plasmas, quantum metrology and quantum information processing (QIP) experiments [2], have allbeen achieved by using ion and atom traps.In order to achieve trapping of electrically charged particles, the radio-frequency (RF) Paul trap has been de-signed, which creates an effective trapping potential in theOne of the most challenging quests for physicists was represented by the goal of trapping of atomic particles,in a well controlled environment. The advent of ion traps [1] in the 1950s, inﬂuenced the future of physics andtechnology in a very profound and even revolutionary mode. High-precision spectroscopy and mass spectrometrymeasurements with unprecedented accuracy, quantum physics tests, precise control of quantum states, study ofnon-neutral plasmas, quantum metrology and quantum information processing (QIP) experiments [2], have allbeen achieved by using ion and atom traps.In order to achieve trapping of electrically charged particles, the radio-frequency (RF) Paul trap has been de-signed, which creates an effective trapping potential in the

Jan 1, 20060 citations

Spectroscopy of Cold, Trapped Atoms

Tomasz Brzozowski, Maria Brzozowska, Jerzy Zachorowski +1 more

Acta Physica Hungarica A) Heavy Ion PhysicsNov 1, 20063 citations

Electromagnetic trapping of neutral atoms (A)

Harold J. Metcalf

Journal of the Optical Society of America BJan 1, 19860 citations

Trapping ions and atoms optically

Tobias Schaetz

Abstract Isolating neutral and charged particles from the environment is essential in precision experiments. For decades, this has been achieved by trapping ions with radio-frequency (RF) fields and neutral particles with optical fields. Recently, the trapping of ions by interaction with light has been demonstrated. This might permit the advantages of optical trapping and ions to be combined. For example, we would benefit from superimposing optical traps to investigate ensembles of ions and atoms in the absence of any RF fields and from the versatile and scalable trapping geometries featured by optical lattices. In particular, ions provide individual addressability, and electronic and motional degrees of freedom that can be coherently controlled and detected via high-fidelity, state-dependent operations. Their long-range Coulomb interaction is significantly larger compared to those of neutral atoms and molecules. This enables ultra-cold interaction and the chemistry of trapped ions and atoms to be studied, as well as providing a novel platform for higher-dimensional experimental quantum simulations. The aim of this topical review is to present the current state of the art and to discuss the current challenges and prospects of the emerging field.Abstract Isolating neutral and charged particles from the environment is essential in precision experiments. For decades, this has been achieved by trapping ions with radio-frequency (RF) fields and neutral particles with optical fields. Recently, the trapping of ions by interaction with light has been demonstrated. This might permit the advantages of optical trapping and ions to be combined. For example, we would benefit from superimposing optical traps to investigate ensembles of ions and atoms in the absence of any RF fields and from the versatile and scalable trapping geometries featured by optical lattices. In particular, ions provide individual addressability, and electronic and motional degrees of freedom that can be coherently controlled and detected via high-fidelity, state-dependent operations. Their long-range Coulomb interaction is significantly larger compared to those of neutral atoms and molecules. This enables ultra-cold interaction and the chemistry of trapped ions and atoms to be studied, as well as providing a novel platform for higher-dimensional experimental quantum simulations. The aim of this topical review is to present the current state of the art and to discuss the current challenges and prospects of the emerging field.

arXiv:2105.01155Journal of Physics B Atomic Molecular and Optical PhysicsMar 28, 201740 citations

^{171}

^+

^{172}

^+

, or

^{174}

^+

ions into an RF Paul trap.