Incoherent light-emitting device for driving vertical laser cavity

A technology of light-emitting devices and organic light-emitting devices, which is applied to laser components, lasers, phonon exciters, etc., can solve problems such as difficult to determine devices, and achieve the effects of low scattering/absorption loss and high light output
CN1380725AInactive Publication Date: 2002-11-20EASTMAN KODAK CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
EASTMAN KODAK CO
Publication Date
2002-11-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

A laser emitting device comprising an incoherent light emitting device having a light emitting layer on which an electric field is applied to generate light emitted from the incoherent light emitting device; and a vertical laser cavity structure arranged to receive the incoherent Light emitting devices emit light and generate laser light.
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Description

technical field

[0001] The invention relates to the field of light-emitting devices, especially solid-state lasers based on organic materials. Background of the invention

[0002] Over the past few years, interest in fabricating solid-state lasers based on organic materials has grown. Laser materials are classified as polymers or small molecules, and use a variety of different cavity structures, such as microcavities (US-A 6,160,828), waveguides, ring microlasers, and distributed feedback (for example, see also G.Kranzelbinder et al. Phys. 63, 729

[2000] and M. Diaz-Garcia et al., US-A-5,881,083). A problem with all these structures is that in order to be lasing, the cavity must be excited by optical pumping with another laser source. Electrically pumped laser cavities are favored because they generally make the structure more compact and easier to modulate.

[0003] The main obstacle to the realization of electrically pumped organic lasers is the small carrier mobility o...

Claims

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