We report a high efficiency, broadband terahertz (THz) modulator following a study of phthalocyanine-compound organic films irradiated with an external excitation laser. Both transmission and reflection modulations of each organic/silicon bilayers were measured using THz time- ...
A polymer distributed feedback (DFB) laser was fabricated by two-beam interference from MEH-PPV film on clear glass substrate. A direct-writing technique was reported that achieves large-area 1D DFB polymer lasers. The polymer thin film was exposed to a single-shot illumination of the interferenc ...
THz pulse transmission was efficiently modulated by an external continuous wave (CW) laser. The effects on the poly (MEH-PPV)/silicon interface were measured by THz time-domain spectroscopy. The modulation factor reached 99.6%, at an external laser beam intensity of 6.3 W∕cm2. In the proposed ...
APPLIED PHYSICS LETTERS 101, 153305 (2012).pdf We report the improvement of the amplified spontaneous emission (ASE) performance in the optically pumped symmetric thin film waveguide glass/indium-tin oxide (ITO)/SiO2/poly /SiO2/Al or Ag by optimizing the thickness of SiO2 and replacing the Al ...
We report amplified spontaneous emission (ASE) in an optically pumped symmetric thin film waveguide based on poly ( MEH-PPV ) and electric-field modulation of the ASE in the MEH-PPV thin film. The electric-field quenching of the ASE at 620 nm and the spontaneous emiss ...