Laser types are identified by their lasing media which determines the wavelength. Which of the following is/are laser type(s)?

i. Gas

ii. Liquid

iii. Solid-state

iv. Semi-conductor

Question

Laser types are identified by their lasing media which determines the wavelength. Which of the following is/are laser type(s)?

i. Gas

ii. Liquid

iii. Solid-state

iv. Semi-conductor

BlackTom AI · Accepted Answer

Question restatement: The problem asks which laser types are identified by their lasing media, i.e., the medium determines the wavelength. The options present different combinations of media categories.
Option (i) and (ii) only: This claim says lasers use gas and liquid media only. While gas and liquid lasers exist, this option excludes solid-state and semiconductor lasers, which are well-established categories. Therefore, this option is incomplete and inaccurate.
Option (i), (ii) and (iv) only: This suggests gas, liquid, and semiconductor lasers exist, omitting solid-state lasers. Given that solid-state lasers are a fundamental category with media such as Nd:YAG, this option is missing a major class, rendering it incorrect.
Option (i), (ii), (iii) and (iv): This asserts that gas, liquid, solid-state, and semiconductor lasers are all valid types. Gas lasers include CO2 and He-Ne; liquid lasers include dye lasers; solid-state lasers include Nd:YAG and fiber lasers; semiconductor lasers (diode lasers) include GaAs/InP devices. All four categories are widely recognized as distinct lasing-media-based laser types, each defined by its medium and corresponding wavelength regimes.
Option (ii) and (iii) only: This claims lasers using liquid and solid-state media only, omitting gas and semiconductor approaches. While both liquid and solid-state lasers exist, this choice ignores two other major categories (gas and semiconductor), making it incomplete and inaccurate.
In sum, the complete and inclusive classification that covers all major lasing-media categories is (i), (ii), (iii) and (iv). This reflects the standard taxonomy of laser types based on lasing media, spanning gas, liquid, solid-state, and semiconductor media, each with characteristic wavelengths and applications.

SD_GEN_SFTY_BME_FYP_2024 LAB11: Laser Safety - Quiz

Laser types are identified by their lasing media which determines the wavelength. Which of the following is/are laser type(s)? i. Gas ii. Liquid iii. Solid-state iv. Semi-conductor

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