摘要:
A method of creating difference frequency (DF) laser pulses (1) by difference frequency generation (DFG) comprises the steps of providing ultrashort laser pulses (2) containing first spectral components and second spectral components having larger frequencies than the first spectral components, and driving a DFG process by the ultrashort laser pulses (2) in an optically non-linear crystal (10), wherein the DF laser pulses (1) are generated in the crystal (10) by difference frequencies between the first and second spectral components, resp., said difference frequencies comprising third spectral components being lower in frequency than the first and second spectral components, wherein at least one enhancement cavity (20) with resonator mirrors (M11 to M14) spanning a beam path (22) is provided and the crystal (10) is placed in the beam path (22) of the enhancement cavity (20), the ultrashort laser pulses (2) are input coupled and coherently added in the at least one enhancement cavity (20), at least one circulating ultrashort laser pulse (3) is created in the at least one enhancement cavity (20), which drives the DFG process in the crystal (10) for generating the DF laser pulses (1), and the at least one enhancement cavity (20) is adapted for recycling the at least one ultrashort laser pulse (3) passing through the crystal (10). Furthermore, a photonic source (100) for creating DF laser pulses (1) is described, including one or more enhancement cavities.
摘要:
The present invention relates to an insertion post (12) for inserting an implant (10) into a jaw bone. The insertion post (12) comprises a first drive portion (16) for transferring a torque to the insertion post (12), and a second drive portion for transferring a torque from the insertion post (12) to the implant (10). The insertion post (12) can be connected releasably to the implant (10) in such a way that in the connection there is a clear relationship between the position of the implant (10) and the position of the insertion post (12), and it comprises a scan body portion (14) which permits a determination of the position of the insertion post (12) by means of an intraoral scanner.
摘要:
A method of generating fs laser pulses (1), comprises the steps of creating a circulating light field in a resonator cavity (10) with multiple resonator mirrors (11 - 18) by pumping at least one gain medium (21, 22) included in the resonator cavity (10), and passing the circulating light field through a first Kerr medium (31) included in the resonator cavity (10), so that the fs laser pulses (1) are formed by self-amplitude modulation of the circulating light field, wherein the resonator cavity (10) includes at least one supplementary Kerr medium (32 - 36) enhancing the self-amplitude modulation of the circulating light field, and each of the first Kerr medium (31) and the at least one supplementary Kerr medium (32 - 36) provide different non-linear Kerr lens contributions to the self-amplitude modulation of the circulating light field. Furthermore, a laser pulse source apparatus (100) for generating fs laser pulses (1) is described.
摘要:
The present invention relates to a peptide or collection of peptides derived from amyloid precursor protein (APP). The present invention also relates to uses of such peptide or collection of peptides, in particular as a diagnostic marker and/or as a drug target.
摘要:
The present invention relates to an inhibitor of the RIPK1-dependent necrosis pathway, to pharmaceutical compositions comprising the same, and to uses thereof.
摘要:
The present invention relates to sulfonylurea analogous compounds comprising a sulfonylurea moiety and a photoresponsive moiety. The present invention further relates to methods for generating the sulfonylurea analogous compounds of the invention and to pharmaceutical compositions comprising at least one sulfonylurea analogous compound of the invention. The present invention relates to the sulfonylurea analogous compounds or the pharmaceutical composition of the invention for use in medicine, in particular for use as anti-diabetic agent and/or in the prevention and/or treatment of diabetes conditions or a disease state requiring modulation of ATP-sensitive potassium (K + ) (K ATP ) channels. The present invention also relates to the use of the sulfonylurea analogous compounds for regulating ATP-sensitive potassium (K + ) (K ATP ) channels and/or for assessing the functional role and/or activation of K ATP channels.
摘要:
Described is a system for inducing and detecting multi-photon processes, in particular multi-photon fluorescence or higher harmonic generation in a sample. The system comprises a dynamically-controllable light source, said dynamically-controllable light source comprising a first sub-light source, said first sub-light source being electrically controllable such as to generate controllable time-dependent intensity patterns of light having a first wavelength, and at least one optical amplifier, thereby allowing for active time-control of creation of multi-photon-excitation. The system further comprises a beam delivery unit for delivering light generated by said dynamically-controllable light source to a sample site, and a detector unit or detector assembly for detecting signals indicative of said multi-photon process, in particular multi-photon fluorescence signals or higher harmonics signals.
摘要:
An enhancement resonator (20) being configured for generating intra-resonator laser light (1) by coherent superposition of input laser light, comprises at least three resonator mirrors (21, 22, 23, 24) spanning a ring resonator path in one common resonator plane, said resonator path being free of a laser light amplifying medium, wherein the at least three resonator mirrors (21, 22, 23, 24) include at least two toroidal mirrors and/or at least one cylindrical mirror. Furthermore, a laser device (100) comprising the enhancement resonator (20) and a method of generating intra-resonator laser light (1) are described.