The internal quantum efficiency is 0.65 for a 500μm long InP cavity laser having a reflectivity of 0.29 on both ends. Compute the slope quantum efficiency if the effective absorption coefficient is 10 cm-1 .

Q: An accelerating voltage of 8 keV was used for the EDX (Energy dispersive x-ray analysis) analysis of…

A: Solution:-           Energy‐dispersive X‐ray spectroscopy (EDX) is a surface analytical technique…

Q: A laser produces light of wavelength 665 nm in an ultrashort pulse. What is the minimum duration of…

A:

Q: Calculate the energy needed for X rays to observe a crystal with a = 2Å, for electrons'energy in a…

A: Given data, Wavelength is given  λ=2A0=2×10-10 m. Plank's constant h=6.6×10-34 J-s. Speed of light…

Q: Q.20 A laser device has a threshold current density of 865.65 A−cm−2 and threshold current of 529…

A: Given:

Q: Acart is attached to aspring and made toundergo vibrational motion The position af the cart over…

A: Required  : The moments that represent the force diagram.

Q: A Ti-Saphire laser delivers a 14 ps pulse of 5 MW average power. If the photons have a wavelength of…

A: Detailed solution is given below:

Q: continuous-wave laser emits a continuous beam of radiation, whereas a pulsed laser emits pulses of…

A: The energy delivered by the pulse is given as, E = 0.10 J The time interval for the total energy…

Q: A Q-Switched Nd:YAG laser with a wavelength of 1064 nm. Its active medium is a cylindrical solid of…

A:

Q: Calculate the stopping potential for metal with the work function of 5.2 eV illuminated by a 150 nm…

A: The photoelectric effect is the release of electrons from a material surface due to the absorption…

Q: 1. Consider a commercial power laser diode with an emission wavelength of 730nm. The threshold…

A: We know that the external quantum efficiency is given by, ηEQE=Number of output photons from the…

Q: how much energy does it take to singly ionize it?

A:

Q: The longest wavelength in the Pfund series is 7459 nm. Find the series limit.

A: Given the longest wavelength in the Pfund series is  λ=7459nm=7459×10-9m=7.459×10-6m We need to find…

Q: In scanning tunnelling microscope the tunnelling current is proportional to the transmission…

A: Solution     Given dataEnergy gap E−V=4eV=4×1.6×10−19JEnergy gap E−V=6.4×10−19JCalculate the ratio…

Q: At room temperature, the diffractogram of a cubic material with lattice parameter of 10Å presents a…

A: Given: The parameter of lattice is 10 A∘ Te parameter of lattice expands by 20 % at high…

Q: These are energy levels in a laser (not to scale). Level 1, 2, 3, are: -13, -5, -3 eV respectively.…

A:

Q: Astronomy: The energy of an absorbed photon must be __________ the electron energy gap.

A: Given, question is of astronomy. We have to find energy of absorbed photon.

Q: If the tunneling current is 8.7 pA when an STM probe is 0.40 nm from a surface and 17 when the probe…

A: A scanning tunneling microscope (STM) measures surfaces at the atomic level. As a result of quantum…