Browsing Physics by Author "Bello, Frank"
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Athermal operation of multi-section slotted tunable lasers
Donegan, John; Bello, Frank; Mc Closkey, David (2017) -
Athermal tuning for a two-section, all-active DBR laser with high-order grating
Bello, Frank; Donegan, John; Wallace, Michael J.; McKenna, Robert; Jain, Gaurav; Lu, Qiaoyin Y.; Guo, Weihua H. (2018)We incorporate thermal effects for injection currents ranging up to 150 mA in order to model the tuning behavior of a two-section, all-active distributed-Bragg-reflector (DBR),ridge-wave guide semiconductor laser utilized ... -
CMOS-compatible multi-band plasmonic TE-pass polarizer
Bello, Frank; Donegan, John; Abadía, Nicolás; Saber, MD Ghulam; Samani, Alireza; El-Fiky, Eslam; Wang, Yun; Plant, David (2018)A CMOS-compatible plasmonic TE-pass polarizer capable of working in the O, E, S, C, L, and U bands is numerically analyzed. The device is based on an integrated hybrid plasmonic waveguide (HPW) with a segmented metal design. ... -
Combining ϵ-Near-Zero Behavior and Stopped Light Energy Bands for Ultra-Low Reflection and Reduced Dispersion of Slow Light
Donegan, John; Bello, Frank; Hess, Ortwin (2017)We investigate media which exhibits epsilon-near-zero (ENZ) behavior while simultaneously sustaining stopped light energy bands which contain multiple points of zero group velocity (ZGV). This allows the merging of ... -
Effective heat dissipation in an adiabatic near-field transducer for HAMR
Jennings, Brian; Bello, Frank; Donegan, John; Mc Closkey, David; Hobbs, Richard; Atcheson, Gwenael (2018)To achieve a feasible heat-assisted magnetic recording (HAMR) system, a near-field transducer (NFT) is necessary to strongly focus the optical field to a lateral region measuring tens of nanometres ... -
Localization and self-trapping in driven-dissipative polariton condensates
Eastham, Paul; Bello, Frank (2017) -
Nanoscale Gap-Plasmon-Enhanced Superconducting Photon Detectors at Single-Photon Level
Bello, Frank (2023)With a growing demand for detecting light at the single-photon level in various fields, researchers are focused on optimizing the performance of superconducting single-photon detectors (SSPDs) by using multiple approaches. ... -
Optical and thermal analysis of the light-heat conversion process employing an antennabased hybrid plasmonic waveguide for HAMR
Donegan, John; Bello, Frank; Mc Closkey, David (2018) -
Tuning behaviour of slotted vernier widely tunable lasers
Bello, Frank; Donegan, John; Wallace, M.J.; Jain, Gaurav; McKenna, Robert (2019)A detailed thermo-optic model combining the 1D transfer matrix method and a 3D finite element method is developed and used to simulate a widely tunable vernier laser based on surface etched slots. The model is used to ...