3 papers
physics.med-ph2023
Lipoarabinomannan-based Tuberculosis Diagnosis using a Fiber Cavity Ring Down Biosensor
Ubaid Ullah, Seerat Saleem, Muddassar Farooq +2
Despite existing for millennia, tuberculosis (TB) remains a persistent global health challenge. A significant obstacle in controlling TB spread is the need for a rapid, portable, s…
physics.optics2022
Fabry-Pérot fiber cavity refractive index sensing via linewidth tracking in the broken PT-symmetric region
Faiza Iftikhar, Raja Ahmad, M. Imran Cheema
Parity-time (PT) symmetric optical sensors operating around exceptional points have recently gained much attraction, offering an unparalleled high sensitivity in measuring small pe…
physics.optics2012
Simultaneous measurement of quality factor and wavelength shift by phase shift microcavity ring down spectroscopy
M. Imran Cheema, Simin Mehrabani, Ahmad A. Hayat +3
Optical resonant microcavities with ultra high quality factors are widely used for biosensing. Until now, the primary method of detection has been based upon tracking the resonant…