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Research

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Research in the Capasso Group spans the full stack of scientific procedures from pure mathematics to numerical simulations, nanofabrication, and system-level integrated devices. Projects are strongly interdisciplinary and fall loosely into the following broad directions:

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Professor Federico Capasso

Robert Wallace Professor of Applied Physics
Vinton Hayes Senior Research Fellow in Electrical Engineering

CV

Profile in IEEE

Pierce 205A, 29 Oxford Street, Cambridge, MA 02138

capasso@seas

p: (617)384-7611 fax: (617)495-2875



Stacia Zatsiorsky

Research Portfolio Manager

Pierce 206B, 29 Oxford Street, Cambridge, MA 02138

szatsiorsky@seas

p: (617)495-3256

Visible metasurface-enhanced laser

April 28, 2020



In this work, we reveal a metasurface-enhanced laser that overcomes a key limitation in lasers: conjugate symmetry of light’s angular momentum. We demonstrate new high-purity orbital angular momentum (OAM) states with quantum numbers reaching 100 and non-...

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Metasurfaces and flat optics

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Above: a near-infrared...

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Frequency combs, quantum cascade lasers, and RF photonics

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Introduction

Frequency combs are widely-used, high-precision tools for measuring and detecting different frequencies — a.k.a. colors — of light. Unlike conventional lasers, which emit a single frequency, these lasers emit multiple frequencies in lockstep, evenly spaced to resemble the teeth of a comb. We study in particular...

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