www.osa-opn.org 24 | OPN October 2008 Two positively charged
... As the laser approaches a single optical cycle, the cycle-to-cycle laser amplitude variation becomes significant. As a result, the spectrum of the attosecond pulses generated near the peak of the laser pulse envelope extends to a shorter XUV wavelength range compared to the adjacent attosecond pulse ...
... As the laser approaches a single optical cycle, the cycle-to-cycle laser amplitude variation becomes significant. As a result, the spectrum of the attosecond pulses generated near the peak of the laser pulse envelope extends to a shorter XUV wavelength range compared to the adjacent attosecond pulse ...
Theory of relativistic optical harmonic generation
... unit solid angle) of the emitted radiation in cgs units of erg s rad . Fig. 2 shows the predicted radiation patterns for secondand third-harmonic generation for a circularly polarized fundamental laser beam. These patterns are of course symmetric about the propagation direction. Note that both radia ...
... unit solid angle) of the emitted radiation in cgs units of erg s rad . Fig. 2 shows the predicted radiation patterns for secondand third-harmonic generation for a circularly polarized fundamental laser beam. These patterns are of course symmetric about the propagation direction. Note that both radia ...
PDF hosted at the Radboud Repository of the Radboud University
... wavelength modulation spectroscopy (WMS) [26]. Alternatively, the sensitivity can be improved by using cavity-enhanced absorption methods, such as cavity ring down spectroscopy (CRDS) [18] and integrated cavity output spectroscopy (ICOS) [27]. CRDS involves coupling the laser beam with a high-finess ...
... wavelength modulation spectroscopy (WMS) [26]. Alternatively, the sensitivity can be improved by using cavity-enhanced absorption methods, such as cavity ring down spectroscopy (CRDS) [18] and integrated cavity output spectroscopy (ICOS) [27]. CRDS involves coupling the laser beam with a high-finess ...
Physics Today
... consider the case in which the pulse envelopes of the these ideas to the quantum regime, Girish Agarwal at the two beams f(z,t) and g(z,i) are the same at z = 0, and in Physical Research Laboratory in Navrangpura, India, has which initially all of the atoms are in the ground state. (The shown the ma ...
... consider the case in which the pulse envelopes of the these ideas to the quantum regime, Girish Agarwal at the two beams f(z,t) and g(z,i) are the same at z = 0, and in Physical Research Laboratory in Navrangpura, India, has which initially all of the atoms are in the ground state. (The shown the ma ...
Wei Zhang, Hainian Han, Yanying Zhao, Qiang Du, Zhiyi Wei. A
... The advent of the femtosecond optical frequency comb represents a breakthrough of high precision optical frequency measurement [1,2]. In 1999, the optical frequency measurement with the frequency comb based on Ti:sapphire mode-locked laser has opened a revolutionary progress in frequency metrology [ ...
... The advent of the femtosecond optical frequency comb represents a breakthrough of high precision optical frequency measurement [1,2]. In 1999, the optical frequency measurement with the frequency comb based on Ti:sapphire mode-locked laser has opened a revolutionary progress in frequency metrology [ ...
A| ω - Enrico Rubiola
... • At ω > ωL, the resonator reflects the noise sidebands • Oscillator phase-noise detection at ωL < ω < Ω (integrator) • The internal lock-in filter rolls off at ω > ωc • The lock-in amplifier stops working at ω ≈ Ω and beyond ...
... • At ω > ωL, the resonator reflects the noise sidebands • Oscillator phase-noise detection at ωL < ω < Ω (integrator) • The internal lock-in filter rolls off at ω > ωc • The lock-in amplifier stops working at ω ≈ Ω and beyond ...
Optical generation and detection of elastic waves in solids
... system for material inspection. In the field of nondestructive testing, the thermoelastic regime is needed to avoid any surface damage and the low induced amplitude makes optical detection difficult. Recently, techniques that use an array of thermoelastic sources have been proposed. Results obtained ...
... system for material inspection. In the field of nondestructive testing, the thermoelastic regime is needed to avoid any surface damage and the low induced amplitude makes optical detection difficult. Recently, techniques that use an array of thermoelastic sources have been proposed. Results obtained ...
Photonic Crystal Nanocavities for Efficient Light Confinement and
... cavities, with mode volumes down to 2.5(l0/2nslab )3 , or 0.03 µm3 in InGaAsP emitting at λ0 = 1.55 µm [3]. We have also been able to tune the emission wavelength of these lasers from 1450 to 1620 nm within a 10×10 laser array in an area of 100 µm × 100 µm by local lithographic modification of the c ...
... cavities, with mode volumes down to 2.5(l0/2nslab )3 , or 0.03 µm3 in InGaAsP emitting at λ0 = 1.55 µm [3]. We have also been able to tune the emission wavelength of these lasers from 1450 to 1620 nm within a 10×10 laser array in an area of 100 µm × 100 µm by local lithographic modification of the c ...
Full-Text PDF
... cavity and how it affects the spatial mode and nonlinear response in ML operation, and the standard compensation for nonlinear astigmatism (and its disadvantages) are discussed. Dispersion management is addressed in Section 9: analytic expressions for calculating the group delay dispersion are provi ...
... cavity and how it affects the spatial mode and nonlinear response in ML operation, and the standard compensation for nonlinear astigmatism (and its disadvantages) are discussed. Dispersion management is addressed in Section 9: analytic expressions for calculating the group delay dispersion are provi ...
Mode-locking
Mode-locking is a technique in optics by which a laser can be made to produce pulses of light of extremely short duration, on the order of picoseconds (10−12 s) or femtoseconds (10−15 s).The basis of the technique is to induce a fixed-phase relationship between the longitudinal modes of the laser's resonant cavity. The laser is then said to be 'phase-locked' or 'mode-locked'. Interference between these modes causes the laser light to be produced as a train of pulses. Depending on the properties of the laser, these pulses may be of extremely brief duration, as short as a few femtoseconds.