Video Experimental Relacionado
Updated: Jul 9, 2026
08:53
Label-free Single Molecule Detection Using Microtoroid Optical Resonators
Published on: December 29, 2015
ÓPTICA ELECTRÓNICA: Los láseres orgánicos prometen un nuevo alquiler en la luz
Science (New York, N.Y.)
|September 11, 2007
Resumen
Los investigadores desarrollaron el primer láser orgánico de estado sólido impulsado eléctricamente. Este avance ofrece una alternativa más barata a los láseres de cerámica, permitiendo nuevos colores y procesos de fabricación más simples.
Área de la Ciencia:
- Óptica y Fotónica.
- Ciencia de los materiales Ciencia de los materiales.
- Electrónica orgánica y electrónica orgánica.
Sus antecedentes:
- Los láseres actuales basados en cerámica son caros de fabricar y requieren instalaciones de salas limpias.
- La gama de colores de los láseres de cerámica existentes es limitada.
- Los materiales orgánicos presentan una alternativa prometedora y rentable para la fabricación láser.
Objetivo del estudio:
- Para desarrollar el primer láser orgánico de estado sólido impulsado eléctricamente.
- Para superar las limitaciones de la tecnología láser de cerámica tradicional.
- Explorar nuevas posibilidades para las paletas de colores láser y la fabricación.
Principales métodos:
- Fabricación de un nuevo dispositivo láser orgánico de estado sólido.
- Implementación de la energía eléctrica para el funcionamiento del láser.
- Caracterización del rendimiento del láser y propiedades ópticas.
Principales resultados:
- Se demostró con éxito el primer láser orgánico de estado sólido impulsado eléctricamente.
- Se logró la operación láser utilizando materiales orgánicos, evitando la necesidad de instalaciones de salas limpias.
- El láser orgánico desarrollado ofrece un espectro de colores potencialmente más amplio en comparación con los láseres de cerámica.
Conclusiones:
- El desarrollo de láseres orgánicos de estado sólido impulsados eléctricamente es un avance significativo.
- Esta tecnología promete soluciones láser más baratas y versátiles.
- Abre caminos para láseres con colores únicos inalcanzables con materiales inorgánicos.
Videos de Conceptos Relacionados
01:35Light as Energy
The energy required to carry out photosynthesis is light— typically electromagnetic radiation from the sun. The range of all possible wavelengths is known as the electromagnetic spectrum.
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit less...
Photons
A photon is a discrete electromagnetic particle or bundle of energy. Photons are characterized by their frequency, wavelength, and amplitude, similar to the properties of a wave. Waves with higher frequencies transmit more energy and have shorter wavelengths than longer wavelengths that transmit less...
01:16UV–Vis Spectroscopy: Molecular Electronic Transitions
In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this process,...
01:23Photoluminescence: Fluorescence and Phosphorescence
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
A pair of electrons in a...
01:14Photoluminescence: Applications
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
01:25Fluorescence and Phosphorescence: Instrumentation
Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.
01:30Electronic Distance Measuring Instruments
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short distances...