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Search Publications by: Marcelo Davanco (Fed)

Displaying 51 - 59 of 59

Simultaneous wavelength translation and amplitude modulation of single photons from a quantum dot

August 16, 2011

Author(s)

Kartik A. Srinivasan, Matthew T. Rakher, Lijun Ma, Marcelo I. Davanco, Oliver T. Slattery, Xiao Tang

Hybrid quantum information devices that combine disparate physical systems interacting through photons offer the promise of combining low-loss telecommunications wavelength transmission with high fidelity visible wavelength storage and manipulation. The

A circular dielectric grating for vertical extraction of single quantum dot emission

July 25, 2011

Author(s)

Marcelo I. Davanco, Matthew T. Rakher, Dieter Schuh, Antonio Badolato, Kartik A. Srinivasan

We demonstrate a suspended circular grating composed of partially etched annular trenches in a thin GaAs membrane, designed for e±cient and moderately broadband ( approx. 5 nm) extraction of emission from single InAs quantum dots. Simulations indicate that

Micro-Optical Techniques

July 5, 2011

Author(s)

Kartik Srinivasan, Matthew T. Rakher, Marcelo I. Davanco

CAVITY OPTOMECHANICAL SENSORS

June 5, 2011

Author(s)

Houxun H. Miao, Kartik A. Srinivasan, Matthew T. Rakher, Marcelo I. Davanco, Vladimir A. Aksyuk

We report a novel type of fully integrated optomechanical sensor and demonstrate high sensitivity mechanical displacement measurements on chip. We sense the motion of micro and nano-mechanical devices by near field coupling them to high quality factor

Optomechanical Transduction of an Integrated Silicon Cantilever Probe Using a Microdisk Resonator

January 20, 2011

Author(s)

Kartik A. Srinivasan, Houxun H. Miao, Matthew T. Rakher, Marcelo I. Davanco, Vladimir A. Aksyuk

Hybrid gap modes induced by fiber taper waveguides: application in spectroscopy of single solid-state emitters deposited on thin films.

May 24, 2010

Author(s)

Marcelo I. Davanco, Kartik A. Srinivasan

We show, via simulations, that an optical fiber taper waveguide may be an efficient spectroscopy tool for single emitters, such as single molecules or colloidal quantum dots, deposited on the surface of a thin dielectric membrane. The fiber-membrane system

An efficient, optical fiber-based waveguide interface to a single quantum dipole

October 12, 2009

Author(s)

Marcelo I. Davanco, Kartik A. Srinivasan

We theoretically investigate a single emitter embedded in a hybrid optical waveguide that proves highly efficient, optical fiber access to the dipole transition. A photoluminescence collection efficiency above 70 \% and an approximately 15 dB transmission

Fiber-coupled semiconductor waveguides as an efficient optical interface to a single quantum dipole

August 15, 2009

Author(s)

Marcelo I. Davanco, Kartik A. Srinivasan

We theoretically investigate the interaction of a single quantum dipole with the modes of a fiber-coupled semiconductor waveguide. Through a combination of tight modal confinement and phase-matched evanescent coupling, we predict that approximately 70 % of

Efficient spectroscopy of single embedded emitters using optical fiber taper waveguides

June 9, 2009

Author(s)

Marcelo I. Davanco, Kartik A. Srinivasan

A technique based on using optical fiber taper waveguides for probing single emitters embedded in thin dielectric membranes is assessed through numerical simulations. For an appropriate membrane geometry, photoluminescence collection e±ciencies in excess