Phys. Rev. Lett. 102, 223901 (2009)
... maximized at the desired wavelength of ¼ 788 nm. This light is frequency doubled in a 3 mm beta-barium borate crystal to obtain the right wavelength range to excite the 4s 2 S1=2 –4p 2 P3=2 transition. By matching the angular dispersion induced by a grating to the wavelength derivative of the phas ...
... maximized at the desired wavelength of ¼ 788 nm. This light is frequency doubled in a 3 mm beta-barium borate crystal to obtain the right wavelength range to excite the 4s 2 S1=2 –4p 2 P3=2 transition. By matching the angular dispersion induced by a grating to the wavelength derivative of the phas ...
Koji Arai – LIGO Laboratory / Caltech
... As we will find in Section 3, for a Fabry-Perot cavity corresponds to the product means that di↵erent optical systems with the same ABCD matrix result in identical beam ...
... As we will find in Section 3, for a Fabry-Perot cavity corresponds to the product means that di↵erent optical systems with the same ABCD matrix result in identical beam ...
Novel Machine Learning Approaches to Molecular Coherent Control
... 580 nm represented as delay functions. These functions are calculated as the derivative of the spectral phase and give a 1-D approximation to a Wigner function. Like many of the solutions obtained at other wavelengths, the optimal functions in Figure 4 are roughly symmetric about some frequency near ...
... 580 nm represented as delay functions. These functions are calculated as the derivative of the spectral phase and give a 1-D approximation to a Wigner function. Like many of the solutions obtained at other wavelengths, the optimal functions in Figure 4 are roughly symmetric about some frequency near ...
May2013050308
... density decreases. The output power of the laser increases from 150.54mW to 155.04mW with the increase of differential gain from 1x10-16cm2 to 4x10-16cm2 and for this a maximum resonance frequency is obtained as 15.935 GHz. The photon density of the Blue Violet laser increases from 8.8136x1015 cm-3 ...
... density decreases. The output power of the laser increases from 150.54mW to 155.04mW with the increase of differential gain from 1x10-16cm2 to 4x10-16cm2 and for this a maximum resonance frequency is obtained as 15.935 GHz. The photon density of the Blue Violet laser increases from 8.8136x1015 cm-3 ...
Inhibited Spontaneous Emission
... the cavity; there is no threshold for enhancement. For a high-mode optical resonator, enhanced emission into a single mode must compete with spontaneous emission in all the other modes of space, and it can only be observed if the cavity Q is sufficiently large. Numerous experimental schemes are poss ...
... the cavity; there is no threshold for enhancement. For a high-mode optical resonator, enhanced emission into a single mode must compete with spontaneous emission in all the other modes of space, and it can only be observed if the cavity Q is sufficiently large. Numerous experimental schemes are poss ...
Frequency comb generation by CW laser injection
... GHz up to hundreds of GHz, which is a useful property for e.g. low-noise microwave generation [13, 14], accurate calibration of spectrometers [5], and optical arbitrary waveform generation [15]. Apart from metrology applications, high repetition rate frequency combs are of interest for telecommunica ...
... GHz up to hundreds of GHz, which is a useful property for e.g. low-noise microwave generation [13, 14], accurate calibration of spectrometers [5], and optical arbitrary waveform generation [15]. Apart from metrology applications, high repetition rate frequency combs are of interest for telecommunica ...
Lasers and lenses - University of Toronto
... The first consideration when purchasing a lens for focusing the beam of the ODT should be what focal length to use. The vacuum chamber is 7.5cm wide meaning that the atom cloud to be trapped will be located approximately 3.75cm inside the cell. This means that the focusing lens must have a focal len ...
... The first consideration when purchasing a lens for focusing the beam of the ODT should be what focal length to use. The vacuum chamber is 7.5cm wide meaning that the atom cloud to be trapped will be located approximately 3.75cm inside the cell. This means that the focusing lens must have a focal len ...
Optical Gain Experiment Manual
... In its simplest form, a cavity consists of two mirrors arranged such that light is reflected back and forth, each time passing through the gain medium. Typically, one of the two mirrors, the output coupler, is partially transparent to allow to the output laser beam to emit through this mirror. Light ...
... In its simplest form, a cavity consists of two mirrors arranged such that light is reflected back and forth, each time passing through the gain medium. Typically, one of the two mirrors, the output coupler, is partially transparent to allow to the output laser beam to emit through this mirror. Light ...
Investigation of spectral gain narrowing in quantum cascade lasers
... antenna.12 The terahertz pulses are then collimated and refocused with parabolic mirrors onto the facet of the QCLs in the cryostat. After passing through the QCLs, the transmitted terahertz probe pulses are detected using free space electrooptic sampling 共200 m ZnTe crystal兲.9 A great advantage of ...
... antenna.12 The terahertz pulses are then collimated and refocused with parabolic mirrors onto the facet of the QCLs in the cryostat. After passing through the QCLs, the transmitted terahertz probe pulses are detected using free space electrooptic sampling 共200 m ZnTe crystal兲.9 A great advantage of ...
Micron-scale modifications of Si surface morphology by pulsed
... wafers by laser melting generally requires the use of nanosecond UV pulses11 to create a temperature gradient and solidification velocity large enough to cause a breakdown in the regrowth of the crystal. The TEM images show, however, a narrow band of contrast, ⬇50 nm wide, at the outermost edge of t ...
... wafers by laser melting generally requires the use of nanosecond UV pulses11 to create a temperature gradient and solidification velocity large enough to cause a breakdown in the regrowth of the crystal. The TEM images show, however, a narrow band of contrast, ⬇50 nm wide, at the outermost edge of t ...
Simple Creative Projects from an Optics Teaching Laboratory
... 2002 WISE class [6]. Jill was the unusual student who not only had an excellent idea for a project (“can we study those glow-in-the-dark stars?”) but also suggested it almost immediately. As a young child, Jill had enjoyed the comfort of falling asleep in a room with a light on, and had also enjoyed ...
... 2002 WISE class [6]. Jill was the unusual student who not only had an excellent idea for a project (“can we study those glow-in-the-dark stars?”) but also suggested it almost immediately. As a young child, Jill had enjoyed the comfort of falling asleep in a room with a light on, and had also enjoyed ...
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.