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We report on a device to electronically stabilize the optical injection lock of a semiconductor diode laser. Our technique uses as discriminator the peak height of the laser's transmission signal on a scanning Fabry-Perot cavity and feeds…

Atomic Physics · Physics 2016-06-15 Brendan Saxberg , Benjamin Plotkin-Swing , Subhadeep Gupta

We demonstrate a tuneable, chip-scale wavelength reference to greatly reduce the complexity and volume of cold-atom sensors. A 1 mm optical path length micro-fabricated cell provides an atomic wavelength reference, with dynamic frequency…

We analyze cavity-assisted cooling schemes for polar molecules in the microwave domain, where molecules are excited on a rotational transition and energy is dissipated via strong interactions with a lossy stripline cavity, as recently…

Quantum Physics · Physics 2009-12-21 Margareta Wallquist , Peter Rabl , Mikhail D. Lukin , Peter Zoller

Plasmonic nanoheaters are reported that produce a significant local heating when excited by a 532 nm wavelength focussed laser beam. A significant temperature increase derives from the strong confinement of electric field enabled by the…

Stable ultrashort light pulses and frequency combs generated by mode-locked lasers have many important applications including high-resolution spectroscopy, fast chemical detection and identification, studies of ultrafast processes, and…

Optics · Physics 2016-06-08 D. G. Revin , M. Hemingway , Y. Wang , J. W. Cockburn , A. Belyanin

A system for studying microcavity resonators at cryogenic temperatures (~10 K) through evanescent coupling via optical fiber taper waveguides is reported, and efficient fiber coupling to AlGaAs microdisk cavities with embedded quantum dots…

Optics · Physics 2009-11-13 Kartik Srinivasan , Oskar Painter

We experimentally study a fiber loop laser with an integrated Erbium doped fiber (EDF). The output optical spectrum is measured as a function of the EDF temperature. We find that below a critical temperature of about 10K the measured…

Optics · Physics 2023-04-11 Eyal Buks

The combination of ultra-cold atomic clouds with the light fields of optical cavities provides a powerful model system for the development of new types of laser cooling and for studying cooperative phenomena. These experiments critically…

Atomic Physics · Physics 2008-01-29 Simone Bux , Gordon Krenz , Sebastian Slama , Claus Zimmermann , Philippe W. Courteille

Quantum information processing using atomic qubits requires narrow linewidth lasers with long-term stability for high fidelity coherent manipulation of Rydberg states. In this paper, we report on the construction and characterization of…

Atomic Physics · Physics 2018-03-23 R. Legaie , C. J. Picken , J. D. Pritchard

Exciton-polariton lasers are coherent light sources which do not require the population inversion (transparency) condition to be fulfilled. They have been conceptualized at the end of the XXth century but until now they operate almost…

We characterize the frequency-sensitivity of a cavity-stabilized laser to inertial forces and temperature fluctuations, and perform real-time feed-forward to correct for these sources of noise. We measure the sensitivity of the cavity to…

Optics · Physics 2015-06-12 David R. Leibrandt , James C. Bergquist , Till Rosenband

This work investigates how a thermal diode can be designed from a nematic liquid crystal confined inside a cylindrical capillary. In the case of homeotropic anchoring, a defect structure called escaped radial disclination arises. The…

Soft Condensed Matter · Physics 2016-08-29 Djair Melo , Ivna Fernandes , Fernando Moraes , Sébastien Fumeron , Erms Pereira

The ability to control the frequency of an external-cavity diode laser (ECDL) is an essential component for undergraduate laboratories and atomic physics research. Typically the housing for the ECDL's diffraction grating and piezoelectric…

Physics Education · Physics 2021-02-03 E. Brekke , T. Bennett , H. Rook , E. L. Hazlett

A room temperature operating Vertical External Cavity Surface Emitting Laser is applied around 1550 nm to intracavity laser absorption spectroscopy analyzed by time-resolved Fourier transform interferometry. At an equivalent pathlength of…

We consider rotation of polarization plane of the laser light when a gas laser is placed in a longitudinal electric field (10~kV/cm). It is shown that residual anisotropy of the laser cavity 10^{-6} and the sensitivity to the angle of…

Optics · Physics 2009-11-11 V. G. Baryshevsky , S. L. Cherkas , D. N. Matsukevich

The intensity fluctuations of laser light are derived from photon number rate equations. In the limit of short times, the photon statistics for small laser devices such as typical semiconductor laser diodes show thermal characteristics even…

Quantum Physics · Physics 2009-11-06 Holger F. Hofmann , Ortwin Hess

We implement three-dimensional polarization gradient cooling of trapped ions. Counter-propagating laser beams near $393\,$nm impinge in lin$\,\perp\,$lin configuration, at a frequency below the S$_{1/2}$ to P$_{3/2}$ resonance in…

We discuss the design of an optical system that allows measurement of 600 nm to 1650 nm emission spectra for individual nanoparticles (NPs), laser heated in an electrodynamic trap in controlled atmospheres. An approach to calibration of…

Instrumentation and Detectors · Physics 2019-02-20 Bryan A. Long , Daniel J. Rodriguez , Chris Y. Lau , Scott L. Anderson

We investigate the dynamics of cavity cooling of a single ion beyond the Lamb-Dicke regime and demonstrate a cooling limit of approximately 50% of the Doppler temperature using a high finesse cavity for the first time. We also study the…

Quantum Physics · Physics 2013-04-22 Boon Leng Chuah , Nicholas C. Lewty , Radu Cazan , Murray D. Barrett

We report a room-temperature diode-pumped solid-state laser by water immersion cooling, which delivers a pulse energy of 11 J at the repetition rate of 100 Hz and the pulse duration of 7 ns, while the beam quality factor is 2.6 times the…

Optics · Physics 2026-01-08 Xinxing Lei , Suyang Wang , Zichao Wang , Lei Huang , Qiang Liu , Xing Fu