Resonance tracking in a micromechanical device using phononic frequency combs

Phononic frequency combs through nonlinear resonances.

We explore an analogue of optical frequency combs in driven nonlinear phononic systems, and present a mechanism for generating phononic frequency combs through nonlinear resonances. In the underlying process, a set of phonon modes is simultaneously excited by the external driving which yields frequency combs with an array of discrete and equidistant spectral lines of each nonlinearly excited ph...

Monolithic device for modelocking and stabilization of frequency combs.

We demonstrate a device that integrates a III-V semiconductor saturable absorber mirror with a graphene electro-optic modulator, which provides a monolithic solution to modelocking and noise suppression in a frequency comb. The device offers a pure loss modulation bandwidth exceeding 5 MHz and only requires a low voltage driver. This hybrid device provides not only compactness and simplicity in...

X-ray frequency combs from optically controlled resonance fluorescence

An x-ray pulse-shaping scheme is put forward for imprinting an optical frequency comb onto the radiation emitted on a driven x-ray transition, thus producing an x-ray frequency comb. A fourlevel system is used to describe the level structure of N ions driven by narrow-bandwidth x rays, an optical auxiliary laser, and an optical frequency comb. By including many-particle enhancement of the emitt...

Terahertz multiheterodyne spectroscopy using laser frequency combs

YANG YANG,* DAVID BURGHOFF, DARREN J. HAYTON, JIAN-RONG GAO, JOHN L. RENO, AND QING HU Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA SRON Netherlands Institute for Space Research, 9747 AD, Groningen, The Netherlands Kavli Institute of NanoScience, Delft University of Techn...

Distribution of an Ultrastable Frequency Reference Using Optical Frequency Combs