Wavelength:Wavelength is the distance between two equivalent points on a wave, such as the maximum point of a crest or the minimum point of a valley. It is represented by the Greek letter lambda ({eq}\lambda {/eq}) and is measured in meters. It is the measu...
thus leading to the different frequencies of the laser when the laser current is in the range for self-injection locking.gSpectrogram of laser frequency change upon the linear tuning of the cavity resonance by piezoelectric actuator, measured for 190.7 ...
The technique we propose does not only provide ASE sources in new spectral allocations but it also opens up a way to perform spectral shaping. 展开 关键词: Nonlinear optics QPM difference frequency generation broadband wavelength conversion
METHOD FOR STABILIZING FREQUENCY OF INTERNAL MIRROR TYPE HE-NE LASER HAVING 534-NM OSCILLATING WAVELENGTHPURPOSE:To stabilize the frequency of the title laser within a wide range by preventing inversion of polarization by impressing a specific static magnetic field upon the inside of the laser thin ...
Fluorescent nanosensors hold the potential to revolutionize life sciences and medicine. However, their adaptation and translation into the in vivo environment is fundamentally hampered by unfavourable tissue scattering and intrinsic autofluorescence. Here we develop wavelength-induced frequency filtering (WIFF)...
In order to provide radiation having a wavelength of about 266 nm, this fundamental wavelength is first frequency-doubled in first optically nonlinear crystal to provide radiation having a wavelength of about 532 nm. The 532 nm-radiation is then frequency-doubled in a second optically nonlinear ...
A widely wavelength-tunable single-frequency (SF) narrow-linewidth thulium/holmium co-doped fiber laser (THDFL) was developed in this study. A motorized etalon-based fiber optic tunable filter was used to determine the lasing wavelength in a spectral range as large as 99 nm (1950–2049 nm)....
WavelengthDiode laser: 755nm 808nm 1064nm Yag laser: 532nm 1064nm 755nm 1320nm IPL: 480nm 530nm 640nm Pulse width0ms-200ms Max energyDiode laser: 50J/cm² Yag laser: 2000mj IPL: 50J/cm² Spot sizeDi...
close to the zero-dispersion wavelength of 2,180 nm of the silicon waveguide. Pumping a waveguide close to the zero-dispersion wavelength in the anomalous region allows for broadband supercontinuum generation5. The OPO has a pulse duration of 70 fs (seeSupplementary Fig. 1), while its ave...
of 800 nm. However, transforming in the rest frame of the mirror the wavelength of the probe is shifted toλL′=λL/(1+βz)γzand the effective mirror density is reduced tone′=ne/γz. Thus, for our conditions each REM is expected to be partially reflective, as seen inFig. 1c...