Multiphoton microscopy uses nonlinear interaction with the sample as a contrast mechanism and is becoming widespread in biomedical sciences. The development of this technique and its applications ...

We demonstrate a pulsed ytterbium-doped fiber master-oscillator power amplifier source at 1060 nm producing over 300 W of average power in 20-ps pulses at 1-GHz repetition rate. The pulses generated ...

From classics to modern masterpieces, these great poetry books—recommended by poets themselves—belong on your bookshelf.

Whatever emotion you're feeling can be found in poetry. So when life brings you down, turn to these inspirational poems to lift your spirits.