Dmitri Kalaev

Title: Innovations of Dmitri Kalaev

Introduction

Dmitri Kalaev is an accomplished inventor based in Cambridge, MA. He has made significant contributions to the field of optoelectronics, holding 2 patents that showcase his innovative approach to manipulating light and electrical properties in devices.

Latest Patents

Kalaev's latest patents include groundbreaking technologies such as reprogrammable electro-chemo-optical devices and methods for using the same. These reconfigurable, active optical components can flexibly manipulate light. One example of these components is an electro-chemo-optical device that utilizes a metal oxide film with a complex refractive index that varies as a function of oxygen vacancy concentration. The optical device may include a metal oxide film, a first electrode, and a second electrode. The first and second electrodes can supply a bias voltage to induce a change in the oxygen vacancy concentration, thereby altering the optical properties of the device, including absorbance, transmittance, and reflectance. The magnitude and spatial distribution of the oxygen vacancy concentration can be adjusted to affect the optical properties of the device. In some designs, the optical device may also include an ionic conductor and an oxygen source to supply or receive oxygen ions to and from the metal oxide film.

Another notable patent involves optoelectronic memristor devices that include one or more solid electrolytes with electrically controllable optical properties. This optoelectronic memristor consists of a first electrode, a second electrode, and a solid electrolyte in between, which is in electrical communication with both electrodes. The solid electrolyte exhibits an electronic conductivity of about 10 Siemens/cm to about 10 Siemens/cm at room temperature. The first electrode, and optionally the second electrode, can be optically transparent at specific wavelengths. A direct current (DC) voltage source is employed to apply an electric field across the solid electrolyte, inducing a spatial redistribution of ionic defects that changes the electrical resistance of the solid electrolyte. This electric field application can also alter an optical property of the solid electrolyte at specific wavelengths.

Career Highlights

Dmitri Kalaev is affiliated with the Massachusetts Institute of Technology, where he continues to push the boundaries of research and innovation in optoelectronics. His work has garnered attention for its potential applications in various technological fields.

Collaborations

Kalaev has collaborated with notable colleagues such as Harry L. Tuller and Thomas