NANOELECTROMECHANICAL INTERFEROMETER FOR VISIBLE TO INFRARED WAVELENGTHS

• Main Authors: ALBRECHTSEN, Marcus, LAHIJANI, Babak Vosoughi, STOBBE, Søren, TSOUKALAS, Konstantinos
• Format: Patent
• Language: English; French; German
• Published: 24.04.2024
• Subjects: COLORIMETRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MEASURING; NANOTECHNOLOGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; RADIATION PYROMETRY; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TESTING; TRANSPORTING

An on-chip interferometer and a spectrometer including the interferometer are provided. An on-chip interferometer includes a waveguide for propagation of an optical signal including an input waveguide; at least two interferometer arms having one or more slot waveguides; and an output waveguide; wherein the input waveguide is split into the at least two interferometer arms which are recombined into the output waveguide; and a control mechanism configured for controlling a relative time delay between optical signals propagating in the two interferometer arms by modifying one or more slot widths of one or more of the slot waveguides; and wherein the relative time delay is at least 1, 2, 5, or at least 10 fs or at least one optical period of the longest optical wavelength of the optical signal.