Repetition rescues regenerative reserve
نویسندگان
چکیده
منابع مشابه
Multi-microjoule, MHz repetition rate Ti:sapphire ultrafast regenerative amplifier system.
We demonstrate a cryogenically cooled Ti:sapphire ultrafast regenerative amplifier laser system producing >20 μJ energies at 50 kHz, >12 μJ at 200 kHz and >3.5 μJ at 1MHz with repetition rates continuously tunable from 50 kHz up to 1.7 MHz in a footprint of only 60x180 cm². This laser uses down-chirped pulse amplification employing a grism stretcher and a glass-block compressor, achieving sub-6...
متن کاملTet2 Rescues Age-Related Regenerative Decline and Enhances Cognitive Function in the Adult Mouse Brain
Restoring adult stem cell function provides an exciting approach for rejuvenating the aging brain. However, molecular mechanisms mediating neurogenic rejuvenation remain elusive. Here we report that the enzyme ten eleven translocation methylcytosine dioxygenase 2 (Tet2), which catalyzes the production of 5-hydroxymethylcytosine (5hmC), rescues age-related decline in adult neurogenesis and enhan...
متن کاملRegenerative amplification of picosecond pulses in Nd:YAG at repetition rates in the 100-kHz range
An all-acousto-optically switched picosecond Nd:YAG regenerative amplifier has been developed for operation at pulse repetition rates in the 20-100-kHz range. The amplifier produces stable 50-ps pulses at 1064 nm in a TEMOO transverse mode with pulse energies of the order of 20-100 AJ. Generation of the second harmonic at 532 nm in KTP crystal results in conversion efficiencies greater than 40%...
متن کامل1-kHz-Repetition-Rate Millijoule Femtosecond Cryocooled DPSS Yb,Na:CaF2 Regenerative Amplifier
1-mJ pulses are extracted from cw-diode-pumped YbNaCaF2 1-kHz regenerative amplifier cooled at -130°C and recompressed to 180 fs FWHM. Further scaling of output energy is currently prevented by AR coating burn of the laser crystal. © 2009 Optical Society of America OCIS codes: 140.7090 Ultrafast lasers; 140.3615 Lasers, ytterbium Ti:sapphire femtosecond amplifiers operating at kHz repetition ra...
متن کاملOptical Fiber Pumped High Repetition Rate and High Power Nd:YVO4 Picosecond Regenerative Amplifier
We report a stable optical fiber pumped Nd:YVO4 all solid state regenerative amplifier with all fiber picosecond laser as seed source. 888 nm Yb optical fiber lasers was chosen as pump source to reduce quantum defect for improved thermal performance. At the repetition rate of 99.6 kHz, maximum power of 19.63 W with 36 ps pulse duration were achieved when seeded by a 150 mW picosecond oscillator...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: European Heart Journal
سال: 2015
ISSN: 0195-668X,1522-9645
DOI: 10.1093/eurheartj/ehv596