Humar Lab
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Jamova
Jamova Cesta
Jamova Cesta
Jamova
Jamova
Jamova Cesta
Jamova Cesta
Si Ljubljana
Our research is focused on Bio-integrated photonic devices, which are implanted inside biological sy
We develop photonic components such as lasers which are implanted inside biological systems and entirely made out of biological materials. This enables another level of manipulation and interrogation of living organisms, biosensing and unprecedented human-machine interfaces.
Miha Papič received the prestigious dr. Uroš Seljak award. Congratulations!
Na Univerza v Ljubljani / University of Ljubljana so danes že drugič podelili nagrade in pohvale dr. Uroša Seljaka za najboljše znanstvene članke študentk in študentov. Nagrade so podelili rektor Univerze v Ljubljani prof. dr. Gregor Majdič, donator prof. dr. Uroš Seljak in Ameriško-slovenska izobraževalna fundacija (ASEF).
Med prejemniki nagrade je tudi Miha Papič za objavljeno znanstveno delo z naslovom Topological liquid crystal superstructures as structured light lasers; raziskave je opravljal na Odseku za fiziko trdne snovi Institut "Jožef Stefan", za mentorstvo pri njegovem delu pa je plaketo prejel tudi njegov mentor doc. dr. Matjaž Humar, vodja Laboratorija za biointegrirano fotoniko in sodelavec Odseka za fiziko trdne snovi Institut "Jožef Stefan" .
Tekoči kristali se zaradi svojih edinstvenih lastnosti uporabljajo v številnih optičnih napravah, med drugim v tekočekristalnih zaslonih in laserjih. Za njihovo uporabo je ključna dvolomnost molekul tekočega kristala ter njihova sposobnost spontane tvorbe kompleksnih dvo- in tridimenzionalnih struktur.
Doslej so se v laserjih uporabljale le razmeroma preproste tekočekristalne ureditve, v nagrajenem delu pa je Miha Papič pokazal, da uporaba kompleksnejših struktur v laserskih mikroresonatorjih omogoča generacijo bolj kompleksne laserske svetlobe. Ker se molekule barvila, ki ga uporabljajo za vir svetlobe v laserskem resonatorju, zaradi svoje strukture poravnajo s tekočekristalnimi molekulami, omogočijo, da ojačajo samo lasersko svetlobo z obliko in polarizacijo, ki jo definira tekočekristalna struktura, kar ponudi edinstven vpogled v interakcijo svetlobe z netrivialnimi tekočekristalnimi strukturami.
Poleg tega se lahko tekočekristalne strukture spreminjajo in oblikujejo s pomočjo električnega polja ali laserske pincete, kar omogoča tudi nadziranje laserskih načinov in polarizacije tekočekristalnih laserjev med delovanjem laserja.
Nagrade in pohvale dr. Uroša Seljaka, letos so podelili po tri, so namenjene spodbujanju in podpiranju znanstvenih objav študentk in študentov na študijskih programih prve in druge stopnje ter spodbujanju mentoriranja študentk in študentov v Republiki Sloveniji.
Čestitamo!
📷: Nebojša Tejić / STA
President of Slovenia, Nataša Pirc Musar visited our lab.
We have published a paper in Nature Communications, where we demonstrate deep tissue imaging and sensing using optical microcavity probes.
Aljaž Kavčič, Maja Garvas, Matevž Marinčič, Katrin Unger, Anna Maria Coclite, Boris Majaron, Matjaž Humar, Deep tissue localization and sensing using optical microcavity probes, Nature Communications 13, 1269 (2022).
https://doi.org/10.1038/s41467-022-28904-6
Deep tissue localization and sensing using optical microcavity probes - Nature Communications Optical microcavities are useful as probes in cells due to their narrow emission spectra and high sensitivity to environment. Here, the authors use the unique spectral features of microcavities, which are unaffected by tissue scattering, and show 3D localisation and tracking of cells deep in tissues...
We have published a paper in the Proceedings of the National Academy of Sciences of the United States of America (PNAS) about lasers made from topological soft matter. We demonstrate that complex tunable microlasers emitting structured light can be generated from self-assembled topological LC superstructures containing topological defects inserted into a thin Fabry–Pérot microcavity.
Miha Papič, Urban Mur, Kottoli Poyil Zuhail, Miha Ravnik, Igor Muševič, and Matjaž Humar, Topological liquid crystal superstructures as structured light lasers, PNAS 2021 118 (49) e2110839118; https://doi.org/10.1073/pnas.2110839118
Nature Reviews Methods Primers published our review paper titled Whispering-gallery-mode sensors for biological and physical sensing (https://rdcu.be/cCURa). The paper was written with researchers from UK, USA and Japan. In the paper we introduce whispering-gallery-mode microcavities in different geometries and describe sensing mechanisms, including mode splitting and resonance shift, and optomechanical and optoplasmonic signal transductions. Applications and experimental results cover in-vivo and single-molecule sensing, gyroscopes and microcavity quantum electrodynamics.
Deshui Yu, Matjaž Humar, Krista Meserve, Ryan C. Bailey, Síle Nic Chormaic & Frank Vollmer, Whispering-gallery-mode sensors for biological and physical sensing, Nature Reviews Methods Primers volume 1, 83 (2021), https://doi.org/10.1038/s43586-021-00079-2
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