Influence of index contrast in two dimensional photonic crystal lasers

Jørgensen, Mette Marie; Petersen, Sidsel Rübner; Christiansen, Mads Brøkner; Buß, Thomas; Smith, Cameron L. C.; Kristensen, Anders

doi:doi:10.1063/1.3443718

Volume/Page
Keyword
DOI
Citation
Advanced

Volume: Page/Article:

Search Content Type

article doi:

Citation:

Upconversion of a relativistic Coulomb field terahertz pulse to the near infrared

We demonstrate the spectral upconversion of a unipolar subpicosecond terahertz (THz) pulse, where the THz pulse is the Coulomb field of a single relativistic electron bunch. The upconversion to the optical allows remotely located detection of long wavelength and nonpropagating components of the THz spectrum, as required for ultrafast electron bunch diagnostics. The upconversion of quasimonochromatic THz radiation has also been demonstrated, allowing the observation of distinct sum- and differen...

II–VI semiconductor color converters for efficient green, yellow, and red light emitting diodes

II–VI compound semiconductor quantum-well heterostructures were fabricated for use as efficient, narrow-spectrum, photoluminescent color converters to generate green, yellow, or red light when photopumped with blue GaInN light emitting diodes (LEDs). This approach promises high efficiencies in a wide range of wavelengths that includes the green-yellow portion of the spectrum where conventional LEDs offer relatively low efficiency. External quantum conversion efficiencies of 60%–70% and output s...

The influence of index contrast variations for obtaining single-mode operation and low threshold in dye doped polymer two dimensional photonic crystal (PhC) lasers is investigated. We consider lasers made from Pyrromethene 597 doped Ormocore imprinted with a rectangular lattice PhC having a cavity in the middle of the crystal structure. We demonstrate that the index contrast, n_eff,high/n_eff,low, is an essential parameter for achieving low threshold, and we identify a trade-off between low threshold and single-mode operation.

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

dye lasers, dyes, laser cavity resonators, optical polymers, photonic crystals

PACS

42.55.Mv

Dye lasers
42.60.By

Design of specific laser systems
42.60.Da

Resonators, cavities, amplifiers, arrays, and rings
42.55.Tv

Photonic crystal lasers and coherent effects

ARTICLE DATA

Digital Object Identifier

http://dx.doi.org/10.1063/1.3443718

PUBLICATION DATA

ISSN

0003-6951 (print)

1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef

American Institute of Physics

For access to citing articles, you need to log in.

Figures (5)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)