1.    When measuring infrared areareflectivity, what is used as a reference material?
a.      Gold
b.     Steel
c.      Silicon
d.     Tungsten
2.    What is true about the light sourcefor photoelectron spectroscopy?
a.      Hit a pure metal with anaccelerated electron, resulting in a single-energy X-ray.
b.     The energy of the UV lightrepresents almost constant energy regardless of the dischargegas.
c.      The use of radiationaccelerators allows the use of light from various energies.
d.     Monochromator can increase lightintensity.
3.    Which of the following statements isincorrect?
a.    Initial state effect is the effectproduced by coupling with other atoms/ion.
b.    The initial state effect can beobserved to distinguish the chemical species of the specimen.
c.    The Final State effect is the effectcaused by the perturbation of the electronic structure byphotomultiplier emission.
d.    The Final State effect increases thecomplexity of the spectra without the information of the samples,causing confusion in the analysis.
4.    Which of the following types ofsemiconductor-to-semiconductor bonding is advantageous to properlyseparate the exciton produced after light absorption from the lightdetector or solar cell?
a.    TYPE I
b.    TYPE II
c.    TYPE III
d.    Not relevant to junction TYPE
5.    What are the advantages of lowtemperature elliptical spectroscopy?
a.    You can separate overlaid transitionpoints.
b.    Analyze the transition point.
c.    Measure the thickness of the thin filmwith an accuracy of less than nm.
d.    Accurately measure the level of avalence band
6.    Which of the following statementsabout XPS, UPS, or IPES is incorrect?
a.    The electronics of valence band cannotbe measured with XPS, but must be measured with UPS.
b.    XPS and UPS cannot measure emptyelectronic structures.
c.    XPS and UPS have the same principle ordifferent energy sources.
d.    IPES measures the energy of photonsemitted when electrons are added to a sample.
7.    If the refractive index of the mediumbetween the lens and the focal point is n, and the radius of thelens and the angle between the focal point is a, how is thenumerical approach calculated?
a.    n x sina
b.   n x cosa
c.    n x tana
d.   n x cota
8.    A peak appeared in thePhotoluminescence spectrum of a direct-gap bulk semiconductor.Which of the following is true?
a.    Band-gap energy is greater than peakenergy.
b.   Band-gap energy is smaller than peakenergy.
c.    Band-gap energy is the addition ofponon energy to peak energy.
d.   Band-gap energy is the energy of the peakminus the ponon energy.
9.    Which of the following statements isincorrect?
a.    Information on the direction of growthof the crystal structure can be obtained through the Ramanspectrometry.
b.    Selection rules for vibration mode arealways the opposite in IR spectroscopy and Raman spectroscopy.
c.    In general, the Raman analysis shouldanalyze the light of wavelengths close to incident lasers comparedto the luminescence.
d.    Both luminescence (PL) and Raman canbe investigated for polarizing dependencies to obtain additionalinformation.
10. Metal reflects most of the terahertz wave, so thetransmittance is very low. Why do metals show high reflectivity inthe Terahertz area?
a.    electromagnetic reaction of freeelectron
b.    electromagnetic response of gridoscillation
c.    interband transition phenomenon
d.    various defects in metal
11. Which of the following is the most suitable roadband lightsource in the range of 300 nm to 700 nm?
a.    Tungsten halogen lamp
b.    Xenon lamp
c.    Mercury lamp
d.    Supercontinuum laser
12. Which dispersion relationship is not suitable for expressinga genetic function with band gaps?
a.    Dielectric function parametricmodel
b.    Tauc-Lorentz model
c.    Gaussian equation
d.    Lorentz model
13. What is the wavelength area of the medium infraredradiation?
a.    0.1 mm - 10 mm
b.    300μm - 20μm
c.    20μm - 2μm
d.    2μm - 700 nm
14. Which of the following statements is true about RamanSpectrum and the vibration mode of matter?
a.    The Raman Shift value corresponds tothe frequency or energy of the vibration mode.
b.    The peak corresponding to allvibration modes appears in the Raman Spectrum.
c.    The strength of each peak in the Ramanspectrum is proportional to the crystallinity of the material.
d.    The amorphous material does notproduce a Raman signal.
15. What is the energy of a porton with a wavelength of 550nm?
a.    2.0 eV
b.    2.1 eV
c.    2.2 eV
d.    2.3 eV
16. GaAs were measured with Modulation Spectroscopy. Which ofthe following statements is incorrect?
a.    The band gap can also be accuratelymeasured at room temperature.
b.    Spin-orbit splitting can bemeasured.
c.    You can directly measure the curvatureof the conditioning band near the point.
d.    Transitions not distinct from theReflectance spectrum can also be measured.
17. Which of the following is NOT an advantage of terrahertztime-degradation spectrophotometry?
a.    Measurements can be made in arelatively short period of time.
b.    Sensitivity increases because nospectroscopic measurement is performed by dividing energy byfrequency.
c.    Because amplitude and phase aredetermined at the same time, optical constants can be derivedwithout any additional assumptions.
d.    General light sources provide easyaccess to visible light and ultraviolet areas.
18. When light of linear polarizing is injected into a specimenwith a complex dielectric rate, what polarizing is the reflectedlight generally?
a.    linear polarization
b.    elliptic polarography
c.    circular polarization
d.    rotating polariza
19. Which of the following statements is incorrect?
a.    Initial state effect is the effectproduced by coupling with other atoms/ion.
b.     The initial state effect can beobserved to distinguish the chemical species of the specimen.
c.    The Final State effect is the effectcaused by the perturbation of the electronic structure byphotomultiplier emission.
d.    The Final State effect increases thecomplexity of the spectra without the information of the samples,causing confusion in the analysis.
20. What is NOT a measurement for correct ellipticalspectroscopy?
a. Increase the measurement variable by measuring the angle ofincidence of multiple angles.
b. Measure only narrow wavelength areas suitable for analysispurposes.
c. Calibration of the optical components must be performedbefore measuring samples.
d. Prepare a clean sample with a mirror-like.
