5 papers
Observational Constraints on Horizonless Compact Objects from Thermal Emission in AGNs
Ekin Oran, Avery Broderick, Kiana Salehi
The Swift Burst Alert Telescope Active Galactic Nuclei Spectroscopic Survey (BASS DR2) provides one of the largest and most complete samples of bright, local (z < 0.1) active galac…
Quadrature amplitude modulation for electronic sideband Pound-Drever-Hall laser frequency locking
J. Tu, A. Restelli, K. Weber +4
The Pound--Drever--Hall (PDH) technique is routinely used to stabilize the frequency of a laser to a reference cavity. Electronic sideband (ESB) locking, a PDH variant, bridges the…
Interfacing of an optical nanofiber with tunably spaced atoms in an optical lattice
Hyok Sang Han, Ahreum Lee, Sarthak Subhankar +2
We experimentally demonstrate efficient interfacing of a large number of atoms to an optical nanofiber using an optical lattice with tunable spacing (m) projected onto…
A practical guide to feedback control for Pound-Drever-Hall laser linewidth narrowing
Wance Wang, Sarthak Subhankar, Joseph W. Britton
The Pound-Drever-Hall (PDH) technique for laser linewidth narrowing is widely used by AMO experimentalists. However, achieving a high-performance PDH locking requires substantial e…
Versatile optical accordion lattices using binary phase transmission gratings
Hyok Sang Han, Ahreum Lee, Sarthak Subhankar +2
Optical accordion lattices are routinely used in quantum simulation and quantum computation experiments to tune optical lattice spacings. Here, we present a technique for creating…