[PDF] Top 20 One and two photon pumped organic semiconductor lasers

... compact organic semiconductor ...pump lasers are still relatively bulky and ...as two-photon absorption, whereby two photons of half the energy (twice the wavelength) required to ... See full document

... asymmetric one as well), this is because of the relatively weak penetration of the field into the claddings for all important h values, and in the asymmetric structure, also because the composition, and thus the ... See full document

... mechanically-flexible organic semiconductor lasers based on monodisperse star-shaped oligofluorenes has been improved by using two ...flexible organic laser comprising a T3-polyimide ... See full document

... from organic semiconductors, acting as an additional loss mechanism in the ...optically pumped lasing ...in organic electroluminescent ...excited organic laser diodes still has far to go and ... See full document

... When driving an LED with a DC voltage the light intensity will peak at a certain current and stagnate or even drop if the current is further increased. This roll-over is normally reversible if the current was never ... See full document

... When driving an LED with a DC voltage the light intensity will peak at a certain current and stagnate or even drop if the current is further increased. This roll-over is normally reversible if the current was never ... See full document

... optically pumped lasers stimulated emission under electrical excitation has yet to be observed, the two major obstacles being electrode and charge-induced ...with organic molecular crystals ... See full document

... more conventional solvent, chlorobenzene. The lms deposited from carbon disulphide or chlorobenzene at room temperature exhibit a similar morphology (Fig. SI7a and SI7c,† respectively). Due to the lower boiling point of ... See full document

... a semiconductor platform, offering versatile tools to engineer the potential landscape and to access the non-linear electro-optical ...polariton lasers with possibly topologically non-trivial ... See full document

... The Garnache design was implemented in an MBE-grown InGaAs/GaAs VECSEL, which exhibited the power output characteristics shown in figure 3. Unlike the Kuznetsov device, this laser used no post-growth processing of any ... See full document

... edge-emitting lasers, including lower threshold (2), circular and low-divergence output beam (3), single longitudinal mode emission (4), longer lifetime (5), and easy production of dense two- dimensional ... See full document

... that photon noise dominates, as the av- erage number of inverted carrier states is much larger than the average photon ...As photon noise originates from random spontaneous emission of photons with ... See full document

... BBEHP-PPV lasers could be tuned from 522 nm to 558 nm. The organic laser showed a well-defi ned fan-shaped output beam, as expected for a one-dimensional distributed feedback ...of organic ... See full document

... DBR lasers, the threshold variation as a function of the defect size was ...polymer lasers is lower than the threshold of the DFB case, where the size of the defect is ...the two resonators, namely ... See full document

... NW lasers to reach functional industrial products. One of these challenges, which directly arises from the ultra-small dimensions of NW lasers, make the manipulation and positioning of selected NWs ... See full document

... conducting lasers are also called junction lasers or junction diode lasers because they produce laser energy at the junction of two types of impurities in a ...injection lasers because ... See full document

... Figure 5.14 shows the photonic crystal Bragg laser characteristics of the output power versus the input current (L-I) and the voltage versus the input current (I-V). In the I-V curve, the turn-on voltage of 0.75 V is ... See full document

... Abstract Unlike conventional semiconductor lasers, single quantum well SQW lasers with high reflectivity end facet coatings have dramatically reduced threshold currents as a result of th[r] ... See full document

... the laser is pulsing at its fundamental frequency without any competing pulses (ie. there is only one pulse per round trip). Having observed this, further tuning of the laser pump power, drive current and ... See full document

... a two-dimensional heat flow, form- ing a parabolic profile of thermal distortion, propagates through this side ...on one side and ge- nerates a one-dimensional axial heat flow on the other ...disk ... See full document