Crossed optical cavities with large mode diameters

Heinz, A.; Trautmann, Jan; Šantić, Neven; Park, Annie Jihyun; Bloch, Immanuel; Blatt, Sebastian

doi:10.1364/ol.414076

Cited by 15 publications

(19 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the second study, in addition to the modes that sample the electromagnetic vacuum, an additional mode is strongly coupled to an electronic excitation (the peak around 5.6 eV) that results to the Rabi splitting into the lower and upper polariton peaks. Including an ex-tra mode that couple strongly can be realized, for example, in crossed cavity setups [55,56]. We show the results of this calculation in Fig.…”

Section: Resultsmentioning

confidence: 99%

Transition from Lorentz to Fano Spectral Line Shapes in Non-Relativistic Quantum Electrodynamics

Welakuh¹,

Narang²

2021

Preprint

View full text Add to dashboard Cite

Spectroscopic signatures associated with symmetric Lorentzian and asymmetric Fano line shapes are ubiquitous. Distinct features of Fano resonances in contrast with conventional symmetric resonances have found several applications in photonics such as optical switching, sensing, lasing, and nonlinear and slow-light devices. Therefore, it is important to have control over the generation of these resonances. In this work, we show through ab initio simulations of coupled light-matter systems that Fano interference phenomena can be realized in a multimode photonic environment by strong coupling to the electromagnetic continuum. Specifically, we show that by effectively enhancing the light-matter coupling strength to the photon continuum in an experimentally feasible way, we can achieve a transition from Lorentzian to Fano lines shapes for both electronic and polaritonic excitations. An important outcome of switching between these spectral signatures is the possibility to control the Purcell enhancement of spontaneous emission alongside electromagnetically induced transparency which is a special case of Fano resonances. Switching from Fano back to a Lorentzian profile can be achieved by physically reducing the coupling strength to the continuum of modes. Our results hold potential for realizing tunable Fano resonances of molecules and materials interacting with the electromagnetic continuum within multimode photonic environments.

show abstract

Section: Resultsmentioning

confidence: 99%

Transition from Lorentz to Fano Spectral Line Shapes in Non-Relativistic Quantum Electrodynamics

Welakuh¹,

Narang²

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…In contrast to existing buildup cavities, we use a monolithic assembly that is both thermally and mechanically stable, without any movable parts [26], as shown in Fig. 1(a).…”

Section: Experimental Setup a Crossed Cavitiesmentioning

confidence: 99%

“…The spacer has bores with different diameters for optical access and high-resolution imaging. With an interferometric method, we have achieved a near-perfect vertical overlap between the two modes [26].…”

Section: Experimental Setup a Crossed Cavitiesmentioning

confidence: 99%

“…The cavity mirrors are optimized for quantum simulations with strontium atoms and are highly reflective at several selected wavelengths [26]. In the remainder of this work, we couple laser light at 914.3 nm into the cavities.…”

Section: Experimental Setup a Crossed Cavitiesmentioning

confidence: 99%

“…In this work, we demonstrate 2D optical lattices with a mode area close to 1 mm 2 that can trap neutral atoms in both high-and low-intensity lattice regimes. We achieve this mode area by generating the lattices in optical cavities with large mode diameters to enhance optical power [26]. Notably, this enhancement can be done at any wavelength of interest, even those for which the available laser power is limited, while keeping the mode area constant, and our cavity is coated for multiple wavelengths.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Cavity-enhanced optical lattices for scaling neutral atom quantum technologies

Park,

Trautmann,

Šantić

et al. 2021

Preprint

View full text Add to dashboard Cite

We demonstrate a cavity-based solution to scale up experiments with ultracold atoms in optical lattices by an order of magnitude over state-of-the-art free space lattices. Our two-dimensional optical lattices are created by power enhancement cavities with large mode waists of 489(8) µm and allow us to trap ultracold strontium atoms at a lattice depth of 60 µK by using only 80 mW of input light per cavity axis. We characterize these lattices using high-resolution clock spectroscopy and resolve carrier transitions between different vibrational levels. We use these spectral features to locally measure the lattice potential envelope and the sample temperature with a spatial resolution limited only by the optical resolution of the imaging system. The measured ground-band and trap lifetimes are 18(3) s and 59(2) s, respectively, and the lattice frequency (depth) is long-term stable on the MHz (0.1%) level. Our results show that large, deep, and stable two-dimensional cavityenhanced lattices can be created at any wavelength and can be used to scale up neutral-atom-based quantum simulators, quantum computers, sensors, and optical lattice clocks.

show abstract

Transition from Lorentz to Fano Spectral Line Shapes in Nonrelativistic Quantum Electrodynamics

Welakuh

Narang

2022

ACS Photonics

View full text Add to dashboard Cite

Spectroscopic signatures associated with symmetric Lorentzian and asymmetric Fano line shapes are ubiquitous. Distinct features of Fano resonances in contrast with conventional symmetric resonances have found several applications in photonics such as optical switching, sensing, lasing, and nonlinear and slow-light devices. It is therefore important to effectively generate and control these resonances. In this work, we show through ab initio simulations of coupled light−matter systems that Fano interference phenomena can be realized in a multimode photonic environment by strong coupling to the electromagnetic continuum. Specifically, we show that by effectively enhancing the light−matter coupling strength to the photon continuum in an experimentally feasible way, we can achieve a transition from Lorentzian to Fano lines shapes for both electronic and polaritonic excitations. An important outcome of switching between these spectral signatures is the possibility to control the Purcell enhancement of spontaneous emission alongside electromagnetically induced transparency, which is a special case of Fano resonances. Switching from Fano back to a Lorentzian profile can be achieved by physically reducing the coupling strength to the continuum of modes. Our results hold potential for realizing tunable Fano resonances of molecules and materials interacting with the electromagnetic continuum within multimode photonic environments.

show abstract

Crossed optical cavities with large mode diameters

Cited by 15 publications

References 18 publications

Transition from Lorentz to Fano Spectral Line Shapes in Non-Relativistic Quantum Electrodynamics

Transition from Lorentz to Fano Spectral Line Shapes in Non-Relativistic Quantum Electrodynamics

Cavity-enhanced optical lattices for scaling neutral atom quantum technologies

Transition from Lorentz to Fano Spectral Line Shapes in Nonrelativistic Quantum Electrodynamics

Contact Info

Product

Resources

About