Rotational multiphoton endoscopy with a 1 microm fiber laser system.
We present multiphoton microendoscopy with a rotational probe and a 1 microm fiber-based femtosecond laser. The rotational probe is based on a double-clad photonic crystal fiber, a gradient index lens, a microprism, and a rotational microelectronicmechanical system (MEMS) motor. The MEMS motor has a diameter of 2.2 mm and can provide 360 degrees full-view rotation. The fiber laser provides ultrashort pulses with a central wavelength at 1.034 microm and a repetition rate of 50 MHz. Second-harmonic-generation images of rat-tail tendon and fish scale are demonstrated with the rotational probe-based multiphoton system.
Liu
Gangjun
G
Beckman Laser Institute, University of California, Irvine, California 92612, USA.
Xie
Tuqiang
T
Tomov
Ivan V
IV
Su
Jianping
J
Yu
Lingfeng
L
Zhang
Jun
J
Tromberg
Bruce J
BJ
Chen
Zhongping
Z
D017076:Computer-Aided Design; D019723:Endoscopes; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D007089:Image Enhancement / Q000295:instrumentation*; D007834:Lasers; D055617:Micro-Electrical-Mechanical Systems / Q000295:instrumentation*; D036641:Microscopy, Fluorescence, Multiphoton / Q000295:instrumentation*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D014159:Transducers