A5003271380- Mechanical and Optical Resonators
- Photonic and Optical Devices
- Advanced Fiber Optic Sensors
- Advanced Fiber Laser Technologies
- Spectroscopy and Laser Applications
- Analytical Chemistry and Sensors
- Nanowire Synthesis and Applications
- Advanced Antenna and Metasurface Technologies
- Spectroscopy Techniques in Biomedical and Chemical Research
- Quantum Information and Cryptography
- Fullerene Chemistry and Applications
- Graphene research and applications
- Diamond and Carbon-based Materials Research
University of Wisconsin–Madison
2023-2025
Universidad de Guanajuato
2020-2022
University of Bonn
2020-2022
Fiber Fabry-Perot microcavities (FFPCs) enhance light-matter interactions by localizing light in time and space. Such FFPCs are at the heart of this powerful detection scheme exploiting photothermal nonlinearities Pound-Drever-Hall frequency locking that enabled label-free profiling single solution-phase biomolecules with unprecedented sensitivity. Here, we deploy a combination experiment simulation to provide quantitative mechanism for observed single-molecule sensitivity achieve agreement...
We present three high finesse tunable monolithic fiber Fabry-Perot cavities (FFPCs) with passive mechanical stability. The mirrors are fixed inside slotted glass ferrules, which guarantee an inherent alignment of the resonators. An attached piezoelectric element enables fast tuning FFPC resonance frequency over entire free-spectral range for two designs. Stable locking cavity is achieved feedback bandwidths as low $20\,$mHz, demonstrating At other limit, up to $27\,$kHz, close first...
Optical spectroscopic sensors are powerful tools for analyzing gas mixtures in industrial and scientific applications. Whilst highly sensitive spectrometers tend to have a large footprint, miniaturized optical devices usually lack sensitivity or wideband coverage. By employing widely tunable, passively stable fiber Fabry-Perot cavity (FFPC), we demonstrate an absorption device that continuously samples over several tens of terahertz. Both broadband scans using mode width spectroscopy...
Fiber-Fabry-Perot microcavities are tools that enhance light-matter interactions. A new detection scheme exploiting photo-thermal effects and Pound-Drever-Hall locking technique enabled label-free of solution-phase single biomolecules hundred times smaller than the wavelength in solution phase.
Fiber Fabry-Perot microcavities (FFPCs) enhance light-matter interactions by localizing light in time and space. A new detection scheme exploiting photothermal non-linearities Pound-Drever-Hall frequency locking enabled label-free of solution-phase single biomolecules with unprecedented sensitivity. Here, we deploy a combination experiment simulation to provide quantitative mechanism for the observed single-molecule sensitivity achieve agreement experiment. Key elements include maintaining...
Abstract The vast majority of chemistry and biology occurs in solution, new label-free analytical techniques that can help resolve solution-phase complexity at the single-molecule level provide microscopic perspectives unprecedented detail. Here, we use increased light-molecule interactions high-finesse fiber Fabry-Pérot microcavities to detect individual biomolecules as small 1.2 kDa with signal-to-noise ratios >100, even molecules are freely diffusing solution. Our method delivers 2D...
Polycyclic Aromatic Hydrocarbons are popular quantum emitters but suffer photonic instability such as photobleaching. Substrates composed of hexagonal Boron Nitride offer an exciting solution to this problem, observed via cryogenic and room-temperature fluorescence spectroscopy.