Systems and methods for Raman spectroscopy

J Hu, D Kita, J Michon - US Patent 11,041,759, 2021 - Google Patents
A method of performing Raman spectroscopy can include guiding a Raman pump beam
with an optical fiber, where the Raman pump beam inducing fluorescence in the optical …

High-performance on-chip spectrometers and spectrum analyzers

D Kita, CAR Ocampo, J Hu - US Patent 10,983,003, 2021 - Google Patents
We disclose an on-chip photonic spectroscopy system capable of dramatically improving the
signal-to-noise ratio (SNR), dynamic range, and reconstruction quality of Fourier transform …

Miniaturized Fourier-transform Raman spectrometer systems and methods

T Gu, D Kita, J Hu - US Patent 11,313,725, 2022 - Google Patents
State-of-the-art portable Raman spectrometers use discrete free-space optical components
that must be aligned well and that don't tolerate vibrations well. Conversely, the inventive …

Systems and methods for Raman spectroscopy

J Hu, D Kita, J Michon - US Patent 11,885,684, 2024 - Google Patents
A method of performing Raman spectroscopy can include guiding a Raman pump beam
with an optical fiber, where the Raman pump beam inducing fluorescence in the optical …

High-performance on-chip spectrometers and spectrum analyzers

D Kita, CAR Ocampo, J Hu - US Patent 11,885,677, 2024 - Google Patents
We disclose an on-chip photonic spectroscopy system capable of dramatically improving the
signal-to-noise ratio (SNR), dynamic range, and reconstruction quality of Fourier transform …

Multi-spectral image printing method

A Scholefield, M Vetterli, Y Bellouard… - US Patent …, 2022 - Google Patents
Lippmann, G.,“Sur la théorie de la photographie des couleurs simples et composées par la
méthode interferentielle,” Journal de Physique Théorique Appliquée, vol. 3, No. 1, 1894, pp …

Device and method for generating a key

M Blasl, F Costache - US Patent 11,722,297, 2023 - Google Patents
A device for generating a key has a multimode interferometer which can be coupled to a
light source and has a light path having an electro-optical material, the light path being …