Photonic bandgap disk laser

Photonic bandgap disk laser - Electronics Letters

GAPONTSEV, v.P., MATITSIN, s.M., ISINEEV, A.A., and KRAVCHENKO, v.B.: ‘Erbium glass lasers and their applications’, Opt. Laser Technol., 1982, 14, pp. 189-196 LAPORTA, P., LONGHI, s., MARCHES, M., TACCHEO, s., and SVELTO, 0.: ‘2.5 GHz and 5 GHz harmonic mode-locking of a diode-pumped bulk erbium-ytterbium glass laser at 1.5 microns’, IEEE Photonics Technol. Lett., 1995, I , pp. 155-157 LENZ, G....

Photonic Bandgap Structures

Photonic bandgap infrared spectrometer.

We propose and demonstrate an infrared (IR) absorption spectrometer, made with a spatially variable photonic bandgap (PBG) structure, a blackbody source, and a simple IR detector, to identify the IR molecular fingerprints of analyte molecules. The PBG-based structure consists of thermally evaporated, IR transparent, high-refractive-index chalcogenide quarter-wave stacks (QWS) with a cavity laye...

Hybrid photonic-bandgap accelerating cavities

In a recent investigation, we studied two-dimensional point-defected photonic bandgap cavities composed of dielectric rods arranged according to various representative periodic and aperiodic lattices, with special emphasis on possible applications to particle acceleration (along the longitudinal axis). In this paper, we present a new study aimed at highlighting the possible advantages of using ...

Gas Sensor Based on Large Hollow-Core Photonic Bandgap Fiber

One concern in using photonic band-gap fiber (PBGF) as a gas sensor is the response time. In this type of the gas sensors, response time is the time required for gas to diffuse into the hollow-core. So considering a large hollow-core PBGF (HC-PBGF), the response time can be significantly reduced. But in the large HC-PBGF, the fundamental issue is the presence of higher order modes (HOMs). Somet...