The Linewidth Broadening Factor: A Length-Scale-Dependent Analytical Approach

Abstract

Abstract:A first-order frequency-dependent formula of the linewidth broadening factor (α-factor) is derived in terms of scattering rates whilst, a mesoscopic disk approach is used in order to accompany the dimension effect to the spontaneous emission lifetime (inverse of scattering rate). An excitonic correction to the relaxation properties is shown to occur provided the binding energy of the electron and hole is comparable to their eigenenergy-separation. The ensuing analysis is independent of the selected III-V material system and resides upon three simplifying assumptions which allow for analytical formulae to be derived.

Photodynamic Cancer Therapy: The Underlying Laser Characteristics

“…An ad-hoc light source that can cater for specific therapeutic traits is instrumental to the success of PDT. Two noteworthy requirements are a low-line width laser emission at the specified (blue/red) wavelength and a pre-engineered laser dynamicssuch as a tailored emission lifetime [2]. -stand out.…”