A5067647771- Cold Atom Physics and Bose-Einstein Condensates
- Quantum optics and atomic interactions
- Atomic and Subatomic Physics Research
- Photonic and Optical Devices
- Quantum Information and Cryptography
- Strong Light-Matter Interactions
- Dark Matter and Cosmic Phenomena
- Advanced Frequency and Time Standards
- Semiconductor Lasers and Optical Devices
- Quantum, superfluid, helium dynamics
- Metamaterials and Metasurfaces Applications
- Laser-Matter Interactions and Applications
- Advanced Fiber Laser Technologies
- Spectroscopy and Laser Applications
- Photonic Crystal and Fiber Optics
- Photonic Crystals and Applications
- Radiation Therapy and Dosimetry
- Quantum and electron transport phenomena
- CCD and CMOS Imaging Sensors
- Nuclear Physics and Applications
- Mobile Ad Hoc Networks
- Optical Coherence Tomography Applications
- Marine Invertebrate Physiology and Ecology
- Mechanical and Optical Resonators
- Nonlinear Photonic Systems
Agency for Defense Development
2023
Electronics and Telecommunications Research Institute
2022
University of Waterloo
2016-2021
Columbia University
2013
We demonstrate a fiber-integrated Fabry-Pérot cavity formed by attaching pair of dielectric metasurfaces to the ends hollow-core photonic-crystal fiber segment. The consist perforated membranes designed as slabs that act planar mirrors but can potentially allow injection gases through their holes into hollow core fiber. have so far observed cavities with finesse ~11 and Q factors ~$4.5 \times 10^5$, much higher values should be achievable improved fabrication procedures. expect this device...
The harmonic oscillator is a foundational concept in both theoretical and experimental quantum mechanics. Here, we demonstrate oscillators semiconductor platform by faithfully implementing continuously graded alloy wells. Unlike current technology, this technique avoids interfaces that can hamper the system allows for production of multiwell stacks several micrometers thick. experimentally measured oscillations are at 3 THz two structures containing 18 54 parabolic Absorption room...
This study reported a shock wave phenomenon following laser-induced breakdown in water generated using 1064 nm Nd:YAG and 2940 Er:YAG lasers. Previous studies have focused on observing applying waves by visible or near-infrared (near-IR) sources concluded that these were directed parallel to the surface. difference directivity of wavelength nanosecond pulsed laser irradiations. We visualized with high-speed shadowgraphy numerically measured pressure hydrophone evaluate characteristics. The...
We report loading of laser-cooled cesium atoms into a hollow-core photonic-band gap fiber and confining the in fiber's $7\text{\ensuremath{-}}\ensuremath{\mu}\mathrm{m}$-diameter core with magic-wavelength dipole trap at $\ensuremath{\sim}935$ nm. The use magic wavelength removes ac Stark shift 852 nm optical transition caused by suppresses inhomogeneous broadening atomic ensemble that arises from radial distribution atoms. This opens possibility to continuously probe over timescales...
We have developed an atom trap trace analysis (ATTA) system to measure Kr in Xe at the part per trillion (ppt) level, a prerequisite for sensitivity achievable with liquid xenon dark matter detectors beyond current generation. Since Ar and similar laser cooling wavelengths, apparatus has been tested avoid contamination prior measuring samples. A radio-frequency plasma discharge generates beam of metastable atoms which is optically collimated, slowed, trapped using standard magneto-optical...
Abstract Single-mode hollow-core waveguides loaded with atomic ensembles offer an excellent platform for light–matter interactions and nonlinear optics at low photon levels. We review discuss possible approaches incorporating mirrors, cavities, Bragg gratings into these without obstructing their hollow cores. With additional features controlling the light propagation in waveguides, one could potentially achieve optical nonlinearities controllable by single photons systems small footprints...
We propose integrating Fabry-Perot cavity into hollow-core waveguides with photonic-crystal slabs acting as dielectric metasurfaces forming the mirrors. predict achieving strong-coupling cQED regime and present preliminary fabrication results.
We study the spontaneous Raman emission in an ensemble of laser-cooled three-level Λ-type atoms confined inside a hollow-core photonic-bandgap fiber using novel approach to observe process. Instead detecting emitted light, we measure number ground state as function pump time, which eliminates need suppress photons with high-resolution filter. describe how this measurement can be used detect superradiant from atomic ensembles and estimate required superradiance clouds fiber.
We describe the experimental progress and challenges of integrating a single photon source based on quantum dots embedded in semiconductor nanowires with cold-atom experiment which laser-cooled caesium atoms are loaded confined inside hollow-core micro-structured optical fiber. focus particular wavelength conversion photons between 895nm wavelengths suitable for satellite links (~794nm).
Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text T. Yoon, C. Haapamaki, and M. Bajcsy, "Estimation of atom loading efficiency into a hollow core fiber," in Frontiers Optics 2016, OSA Technical Digest (online) (Optica Publishing Group, 2016), paper JW4A.7. Export BibTex Endnote (RIS) HTML Plain alert Save article
Our goal is to study quantum optical phenomena in a strong nonlinear system. For this purpose, we create hollow-core photonic-crystal (HCPC) fiber-based platform that confines photons and atomic ensembles together. This enables light-matter interactions which are crucial for implementing nonlinearities at single-photon levels [1]. We use an dipole trap cesium's magic wavelength guide laser cooled cesium atoms into inside the fiber core. approach will allow us perform experiments with...
We report loading of laser-cooled caesium atoms into a hollow-core photonic-bandgap fiber and confining the in fiber's 7μm diameter core with red-detuned dipole trap. In this system, atom-photon interaction probability is range 0.5% optical depths exceeding 100 can be achieved. discuss outlooks for photon storage nonlinear optics at low light levels, such as cross-phase modulation single-photon wavelength conversion, system.
We study the effects of dipole trap wavelength and power on number laser-cooled atoms loaded into a hollow-core optical fiber to optimize trade-oft's between observed loss mechanisms.