Person
Yasaman Jahani
This person is no longer with EPFL
Related publications (11)
Dielectric metasurfaces and their applications for optical biosensing
Over the past century, our understanding of life has been focused on its most fundamental building blocks: molecules. Biological molecules, such as proteins found in blood, other body fluids, or tissues, are excellent guides to identifying a normal or abno ...
EPFL2023Dielectric Tetramer Nanoresonators Supporting Strong Superchiral Fields for Vibrational Circular Dichroism Spectroscopy
Hatice Altug, Felix Ulrich Richter, Yasaman Jahani, Rui Lu, Bang Hyun Lee, Ming-Lun Tseng, Longfang Ye
Chirality (C) is a fundamental property of objects, in terms of symmetry. It is extremely important to sense and distinguish chiral molecules in the fields of biochemistry, science, and medicine. Vibrational circular dichroism (VCD) spectroscopy, obtained ...
Washington2023Imaging-based spectrometer-less optofluidic biosensors based on dielectric metasurfaces for detecting extracellular vesicles
Hatice Altug, Michele De Palma, Filiz Yesilköy, Chiara Cianciaruso, Yasaman Jahani, Eduardo Romero Arvelo
Biosensors are indispensable tools for public, global, and personalized healthcare as they provide tests that can be used from early disease detection and treatment monitoring to preventing pandemics. We introduce single-wavelength imaging biosensors capab ...
2021Blue-shift ultrasensitivity using rhombus-shaped plasmonic crystal on Si3N4 membrane
Bahareh Ghadiani, Dordaneh Etezadi, Yasaman Jahani, Ershad Mohammadi, Foziyeh Sohrabi, Mahdi Tamizifar
Harnessing ultrasensitivity from optical structures to detect tiny changes in the targeted samples is the main goal of scientists in the field of sensor design. In this study, an uncommon rhombus-shape plasmonic structure is proposed for providing blue-shi ...
OPTICAL SOC AMER2020Membrane activity detection in cultured cells using phase-sensitive plasmonics
Johannes Gräff, Liliane Glauser, Xiaokang Li, Jose Vicente Sanchez Mut, Yasaman Jahani, Ershad Mohammadi, Foziyeh Sohrabi
Despite the existence of various neural recording and mapping techniques, there is an open territory for the emergence of novel techniques. The current neural imaging and recording techniques suffer from invasiveness, a time-consuming labeling process, poo ...
OPTICAL SOC AMER2020Ultrasensitive hyperspectral imaging and biodetection enabled by dielectric metasurfaces
Volkan Cevher, Hatice Altug, Filiz Yesilköy, Andreas Tittl, Yasaman Jahani, Eduardo Romero Arvelo, Mingkai Liu
Metasurfaces based on resonant subwavelength photonic structures enable novel ways of wavefront control and light focusing, underpinning a new generation of flat-optics devices. Recently emerged all-dielectric asymmetric metasurfaces, composed of arrays of ...
2019Integrated Nanophotonic Biosensors for Point-of Care Diagnostics and Bioanalytical Applications
Hatice Altug, Xiaokang Li, Filiz Yesilköy, Alexander Belushkin, Yasaman Jahani
In an effort to address the requirements of next-generation healthcare systems, including personalized medicine, point-of-care diagnostics, and global health surveillance, I will introduce imaging-based portable nanoplasmonic biosensors integrated with mic ...
IEEE2019Accessible Superchiral Near-Fields Driven by Tailored Electric and Magnetic Resonances in All-Dielectric Nanostructures
Hatice Altug, Andreas Tittl, Yasaman Jahani, Kosmas Tsakmakidis, Ershad Mohammadi
Detection and differentiation of enantiomers in small quantities are crucially important in many scientific fields, including biology, chemistry, and pharmacy. Chiral molecules manifest their handedness in their interaction with the chiral state of light ( ...
AMER CHEMICAL SOC2019Enhanced Circular Dichroism and Chiral Sensing with Bound States in the Continuum
Hatice Altug, Andreas Tittl, Yasaman Jahani
We reveal that optical chirality at the nanoscale can be boosted dramatically by bound states in the continuum (BIC). We predict the enhancement of chiroptical signals from nanostructures supporting quasi-BICs in mid-IR with a record-high efficiency. (C) 2 ...
IEEE2019Label-free, scalable and point-of-care imaging platform for rapid analysis of biomarker
Hatice Altug, Filiz Yesilköy, Alexander Belushkin, Yasaman Jahani
We propose a disruptive point-of-care (PoC) imaging platform based on lens-free interference phase-contrast imaging for rapid detection of biomarker such as for sepsis and potentially other diseases (e.g. cancer). It enables simultaneous analysis of potent ...
SPIE-INT SOC OPTICAL ENGINEERING2019