Biophotonics_Concepts_to_Applications

When usingfiber bundles, there is a trade-off between light collection efficiency and good image resolution [ 5 ]. A large core ...

How to deliver a wide range of optical power levels to a tissue area or section during different categories of therapeutic heal ...

3 :6 Consider a fiber with a 25-μm core radius, a core index n 1 = 1.48, and Δ= 0.01. (a) Show that the value of V is 25 at 1320 ...

References B.E.A. Saleh, M.C. Teich,Fundamentals of Photonics, 2nd edn. (Wiley, Hoboken, NJ, 2007) C.L. Chen,Foundations of Gui ...

K. Beaudette, H.W. Bac, W.-J. Madore, M. Villiger, N. Gadbout, B.E. Bouma, C. Boudoux, Laser tissue coagulation and concurrent ...

B.J. Eggleton, B. Luther-Davies, K. Richardson, Chalcogenide photonics. Nat. Photonics 5 , 141 – 148 (2011) D. Lezal, J. Pedlik ...

Chapter 4 Fundamentals of Light Sources Abstract A broad selection of light sources is available for the biophotonics UV, visibl ...

An important factor to keep in mind is that biological tissue has a multilayered characteristic from both compositional and func ...

their optical radiation. The characteristics include the spectrum over which the source emits, the emitted power levels as a fun ...

4.1.1 Optical Flux and Power A key radiometric parameter for characterizing a light source is theflux(also known asopticalfluxor ...

Solution: From Eq. (4.1) the irradiance is E¼ Power Area ¼ 1W pðÞ 2 : 5  10 ^3 m^2 ¼ 5 : 09  104 W=m^2 ¼ 5 : 09  103 mW/cm^2 ...

Example 4.2(a) At what angle from the normal in a lambertian LED is the intensity level 50 % of the normal intensity? This is th ...

The approximation on the right-hand side of Eq. (4.3) only holds for small A and smallΩwhere coshis approximately constant. Ofte ...

quartz envelope that contains a xenon gas under high pressure. The maximum optical power emission from a Xe lamp comes from an a ...

lights on equipment, surgical lights, and medical therapy lights. Continued enhancements in spectral emission ranges, beam profi ...

Theedge emitterdepicted in Fig.4.7consists of an active junction region, which is the source of the incoherent light, and two gu ...

4.3.2 LED Wavelengths and Device Uses The operation of semiconductor devices such as LEDs, laser diodes, and photodi- odes can b ...

broad-spectrum ultraviolet radiation is the strongest and most damaging to living things. Ultraviolet radiation (UVR) is classif ...

modulated at a frequency f =ω/2π(where the ordinary frequency f is measured in hertz and the angular frequencyωis given in radia ...

resistance, the ratio of the output electrical power at the frequencyωto the electric power at zero modulation is Ratioelec¼10 l ...