Publications de Aleksandrs Leitis

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Novel two-dimensional metamaterials, known as metasurfaces, have emerged as a breakthrough platform for controlling electromagnetic wave properties at the nanoscale. These metasurfaces consist of subwavelength nanoantennas or so-called meta-atoms, which ca ...

Surface-enhanced infrared absorption spectroscopy (SEIRA) has emerged as a powerful technique for ultrasensitive chemical-specific analysis. SEIRA can be realized by employing metasurfaces that can enhance light-matter interactions in the spectral bands of ...

Dielectric metasurfaces have emerged as a powerful platform for novel optical biosensors. Due to their low optical loss and strong light-matter interaction, they demonstrate several exotic optical properties, including sharp resonances, strong nearfield en ...

Molecular spectroscopy provides unique information on the internal structure of biological materials by detecting the characteristic vibrational signatures of their constituent chemical bonds at infrared frequencies. Nanophotonic antennas and metasurfaces ...

A method of investigating a sample (1) having an absorption within an infrared spectral range of interest, comprises the steps of creating measuring light (2) with a light source device (10), wherein the measuring light (2) includes wavelengths covering th ...

Metasurfaces have emerged as a breakthrough platform for manipulating light at the nanoscale and enabling on-demand optical functionalities for next-generation biosensing, imaging, and light-generating photonic devices. However, translating this technology ...

Low-loss nanostructured dielectric metasurfaces have emerged as a breakthrough platform for ultrathin optics and cutting-edge photonic applications, including beam shaping, focusing, and holography. However, the static nature of their constituent materials ...

Infrared spectroscopy resolves the structure of molecules by detecting their characteristic vibrational fingerprints. Subwavelength light confinement and nanophotonic enhancement have extended the scope of this technique for monolayer studies. However, cur ...

Based on the ASHRAE Standard 140-2014, this study takes the simulation results of DeST and other simulation software to comprehensively test the accuracy and validity of DeST in calculating building thermal loads and space cooling and heating equipment per ...

We present a nanophotonic method capable of detecting mid-infrared molecular fingerprints without the need for spectrometry, frequency scanning, or moving mechanical parts. We leverage dielectric metasurfaces featuring ultra-sharp resonances each tuned to ...

Aleksandrs Leitis

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Metasurfaces for label-free biosensing mid-infrared optics and active photonic devices

Gradient High-Q Dielectric Metasurfaces for Broadband Sensing and Control of Vibrational Light-Matter Coupling

Dielectric Metasurfaces Enabling Advanced Optical Biosensors

Metasurface-Based Molecular Biosensing Aided by Artificial Intelligence

Method and spectrometer apparatus for investigating an infrared absorption of a sample

Wafer‐Scale Functional Metasurfaces for Mid‐Infrared Photonics and Biosensing

All-Dielectric Programmable Huygens' Metasurfaces

Angle-multiplexed all-dielectric metasurfaces for broadband molecular fingerprint retrieval

Comparison and Verification of Simulation Results of DeST Based on ASHRAE-140 Standard

Programmable Huygens' metasurfaces for active optical phase control

Metasurface‐based molecular biosensing aided by artificial intelligence

All-dielectric Metasurfaces for Infrared Absorption Spectroscopy Applications